Kiehl's Since 1851 Powerful-Strength Line-Reducing Concentrate 1.7 oz.

What It Is:A potent Vitamin C serum formulated with 12.5% Vitamin C and Hyaluronic Acid.What It'S For:All skin types, especially sensitive skin.What It Does:Kiehl's original Vitamin C serum is now formulated with even more Vitamin C. In addition to 10.5% L-Ascorbic Acid, this formula is infused with 2% Vitamin Cg and fragmented Hyaluronic Acid. Visibly reduce wrinkles and fine lines and boost radiance with this potent serum. Powerful-Strength Line-Reducing Concentrate is dermatologist-tested for safety and gentle enough for sensitive skin.Key Ingredients:- Pure Vitamin C: L-Ascorbic Acid, also known as Pure Vitamin C, is a highly efficacious antioxidant known for its ability to improve the appearance of aging skin. In addition to antioxidant protection, Pure Vitamin C is known to help boost radiance, improve texture and visibly reduce the appearance of lines, wrinkles and other signs of aging.- Fragmented Hyaluronic Acid: Hyaluronic Acid acts like a sponge to draw moisture into skin's surface layers and then expands as it absorbs. Within this formula, Hyaluronic Acid is known to help smooth and plump skin.How To Use It:Apply to clean skin. Can be worn alone, after a moisturizer or before foundation.

What It Is:A potent Vitamin C serum formulated with 12.5% Vitamin C and Hyaluronic Acid.What It'S For:All skin types, especially sensitive skin.What It Does:Kiehl's original Vitamin C serum is now formulated with even more Vitamin C. In addition to 10.5% L-Ascorbic Acid, this formula is infused with 2% Vitamin Cg and fragmented Hyaluronic Acid. Visibly reduce wrinkles and fine lines and boost radiance with this potent serum. Powerful-Strength Line-Reducing Concentrate is dermatologist-tested for safety and gentle enough for sensitive skin.Key Ingredients:- Pure Vitamin C: L-Ascorbic Acid, also known as Pure Vitamin C, is a highly efficacious antioxidant known for its ability to improve the appearance of aging skin. In addition to antioxidant protection, Pure Vitamin C is known to help boost radiance, improve texture and visibly reduce the appearance of lines, wrinkles and other signs of aging.- Fragmented Hyaluronic Acid: Hyaluronic Acid acts like a sponge to draw moisture into skin's surface layers and then expands as it absorbs. Within this formula, Hyaluronic Acid is known to help smooth and plump skin.How To Use It:Apply to clean skin. Can be worn alone, after a moisturizer or before foundation.

What It Is:A potent Vitamin C serum formulated with 12.5% Vitamin C and Hyaluronic Acid.What It'S For:All skin types, especially sensitive skin.What It Does:Kiehl's original Vitamin C serum is now formulated with even more Vitamin C. In addition to 10.5% L-Ascorbic Acid, this formula is infused with 2% Vitamin Cg and fragmented Hyaluronic Acid. Visibly reduce wrinkles and fine lines and boost radiance with this potent serum. Powerful-Strength Line-Reducing Concentrate is dermatologist-tested for safety and gentle enough for sensitive skin.Key Ingredients:- Pure Vitamin C: L-Ascorbic Acid, also known as Pure Vitamin C, is a highly efficacious antioxidant known for its ability to improve the appearance of aging skin. In addition to antioxidant protection, Pure Vitamin C is known to help boost radiance, improve texture and visibly reduce the appearance of lines, wrinkles and other signs of aging.- Fragmented Hyaluronic Acid: Hyaluronic Acid acts like a sponge to draw moisture into skin's surface layers and then expands as it absorbs. Within this formula, Hyaluronic Acid is known to help smooth and plump skin.How To Use It:Apply to clean skin. Can be worn alone, after a moisturizer or before foundation.

What It Is:A potent Vitamin C serum formulated with 12.5% Vitamin C and Hyaluronic Acid.What It'S For:All skin types, especially sensitive skin.What It Does:Kiehl's original Vitamin C serum is now formulated with even more Vitamin C. In addition to 10.5% L-Ascorbic Acid, this formula is infused with 2% Vitamin Cg and fragmented Hyaluronic Acid. Visibly reduce wrinkles and fine lines and boost radiance with this potent serum. Powerful-Strength Line-Reducing Concentrate is dermatologist-tested for safety and gentle enough for sensitive skin.Key Ingredients:- Pure Vitamin C: L-Ascorbic Acid, also known as Pure Vitamin C, is a highly efficacious antioxidant known for its ability to improve the appearance of aging skin. In addition to antioxidant protection, Pure Vitamin C is known to help boost radiance, improve texture and visibly reduce the appearance of lines, wrinkles and other signs of aging.- Fragmented Hyaluronic Acid: Hyaluronic Acid acts like a sponge to draw moisture into skin's surface layers and then expands as it absorbs. Within this formula, Hyaluronic Acid is known to help smooth and plump skin.How To Use It:Apply to clean skin. Can be worn alone, after a moisturizer or before foundation.

What It Is:A potent Vitamin C serum formulated with 12.5% Vitamin C and Hyaluronic Acid.What It'S For:All skin types, especially sensitive skin.What It Does:Kiehl's original Vitamin C serum is now formulated with even more Vitamin C. In addition to 10.5% L-Ascorbic Acid, this formula is infused with 2% Vitamin Cg and fragmented Hyaluronic Acid. Visibly reduce wrinkles and fine lines and boost radiance with this potent serum. Powerful-Strength Line-Reducing Concentrate is dermatologist-tested for safety and gentle enough for sensitive skin.Key Ingredients:- Pure Vitamin C: L-Ascorbic Acid, also known as Pure Vitamin C, is a highly efficacious antioxidant known for its ability to improve the appearance of aging skin. In addition to antioxidant protection, Pure Vitamin C is known to help boost radiance, improve texture and visibly reduce the appearance of lines, wrinkles and other signs of aging.- Fragmented Hyaluronic Acid: Hyaluronic Acid acts like a sponge to draw moisture into skin's surface layers and then expands as it absorbs. Within this formula, Hyaluronic Acid is known to help smooth and plump skin.How To Use It:Apply to clean skin. Can be worn alone, after a moisturizer or before foundation.

What It Is:A potent Vitamin C serum formulated with 12.5% Vitamin C and Hyaluronic Acid.What It'S For:All skin types, especially sensitive skin.What It Does:Kiehl's original Vitamin C serum is now formulated with even more Vitamin C. In addition to 10.5% L-Ascorbic Acid, this formula is infused with 2% Vitamin Cg and fragmented Hyaluronic Acid. Visibly reduce wrinkles and fine lines and boost radiance with this potent serum. Powerful-Strength Line-Reducing Concentrate is dermatologist-tested for safety and gentle enough for sensitive skin.Key Ingredients:- Pure Vitamin C: L-Ascorbic Acid, also known as Pure Vitamin C, is a highly efficacious antioxidant known for its ability to improve the appearance of aging skin. In addition to antioxidant protection, Pure Vitamin C is known to help boost radiance, improve texture and visibly reduce the appearance of lines, wrinkles and other signs of aging.- Fragmented Hyaluronic Acid: Hyaluronic Acid acts like a sponge to draw moisture into skin's surface layers and then expands as it absorbs. Within this formula, Hyaluronic Acid is known to help smooth and plump skin.How To Use It:Apply to clean skin. Can be worn alone, after a moisturizer or before foundation.

What It Is:A potent Vitamin C serum formulated with 12.5% Vitamin C and Hyaluronic Acid.What It'S For:All skin types, especially sensitive skin.What It Does:Kiehl's original Vitamin C serum is now formulated with even more Vitamin C. In addition to 10.5% L-Ascorbic Acid, this formula is infused with 2% Vitamin Cg and fragmented Hyaluronic Acid. Visibly reduce wrinkles and fine lines and boost radiance with this potent serum. Powerful-Strength Line-Reducing Concentrate is dermatologist-tested for safety and gentle enough for sensitive skin.Key Ingredients:- Pure Vitamin C: L-Ascorbic Acid, also known as Pure Vitamin C, is a highly efficacious antioxidant known for its ability to improve the appearance of aging skin. In addition to antioxidant protection, Pure Vitamin C is known to help boost radiance, improve texture and visibly reduce the appearance of lines, wrinkles and other signs of aging.- Fragmented Hyaluronic Acid: Hyaluronic Acid acts like a sponge to draw moisture into skin's surface layers and then expands as it absorbs. Within this formula, Hyaluronic Acid is known to help smooth and plump skin.How To Use It:Apply to clean skin. Can be worn alone, after a moisturizer or before foundation.

What It Is:A trio of Kiehl's best sellers for smooth, radiant skin around the clock.Set Includes:- Powerful Strength Line-Reducing Concentrate 1.7 oz.- Retinol Skin-Renewing Daily Micro-Dose Serum 1 oz.- Ultra Facial Cream 0.95 oz.Skin Type:For all skin types.Skin Concern:Smoothness. Radiance. Hydration.What It Does:- Treat: The potent vitamin C serum formulated with 12.5% vitamin C and hyaluronic acid visibly diminishes fine lines in just 2 weeks.- Treat: The potent retinol serum in a daily-strength micro-dose visibly reduces wrinkles, firms skin, evens skin tone and smooths texture with minimal discomfort.- Hydrate: Kiehl's #1 face cream formulated with 4.5% squalane, glacial glycoprotein and pro-ceramides helps strengthen your skin's moisture barrier for softer, smoother skin and 72-hour hydration.How To Use It:- Powerful Strength Line-Reducing Concentrate: After cleansing, apply two pumps of the vitamin C serum over entire face, avoiding the eye area. As it blends into skin, you may experience a feeling of warmth as the formula activates. In case of contact with eyes, rinse them immediately.- Retinol Skin-Renewing Daily Micro-Dose Serum: After cleansing, apply this serum with retinol over the entire face, including the under-eye and crow's feet areas, carefully avoiding contact with the eye, eyelid area and lips. If applied during the day, this serum with retinol should always be used with Spf. Suitable to be paired with Kiehl's other targeted serums, including the dark spot corrector, the vitamin C serum, the skin-strengthening serum and the skin-plumping serum (sold separately).- Ultra Facial Cream: After cleansing and toning, apply a dime-size amount of the hydrating facial cream to skin. Use twice daily, both day and night, as the ultimate complement to your skincare routine.

What It Is:A brightening face serum with a potent form of Vitamin C and Salicylic Acid to help reduce the look of dark spots, hyperpigmentation & post-acne marks, A powerful dark spot corrector and brightening face serum., This lightweight brightening face serum is formulated with a potent form of Vitamin C, Salicylic Acid, and Peony Extract to help visibly reduce hyperpigmentation, dark spots, and post-acne marks.Key Ingredients:- Activated C is a stabilized form of Vitamin C that specifically addresses uneven skin tone and hyperpigmentation, goes to work immediately upon contact with the skin. Within Kiehl's Since 1851's formula, Activated C helps visibly diminish the look of dullness and uneven skin tone and helps increase clarity and brightness for a healthy-looking, more radiant complexion.- Buffered Salicylic Acid: Targeting skin's surface, it works together with Activated C to visibly reduce discoloration and renew the look of skin's texture.- Peony Extract: Used in traditional Chinese medicine, Peony Extract is a natural antioxidant that helps protect against oxidative damage. In Kiehl's Since 1851's formulas, it works with Activated C to enhance skin clarity.How To Use It:Use this brightening serum morning and night during your skincare routine after cleansing and before your moisturizer. Apply serum over entire face or use as a spot treatment. For optimal results, apply a daily sunscreen.

What It Is:A brightening face serum with a potent form of Vitamin C and Salicylic Acid to help reduce the look of dark spots, hyperpigmentation & post-acne marks, A powerful dark spot corrector and brightening face serum., This lightweight brightening face serum is formulated with a potent form of Vitamin C, Salicylic Acid, and Peony Extract to help visibly reduce hyperpigmentation, dark spots, and post-acne marks.Key Ingredients:- Activated C is a stabilized form of Vitamin C that specifically addresses uneven skin tone and hyperpigmentation, goes to work immediately upon contact with the skin. Within Kiehl's Since 1851's formula, Activated C helps visibly diminish the look of dullness and uneven skin tone and helps increase clarity and brightness for a healthy-looking, more radiant complexion.- Buffered Salicylic Acid: Targeting skin's surface, it works together with Activated C to visibly reduce discoloration and renew the look of skin's texture.- Peony Extract: Used in traditional Chinese medicine, Peony Extract is a natural antioxidant that helps protect against oxidative damage. In Kiehl's Since 1851's formulas, it works with Activated C to enhance skin clarity.How To Use It:Use this brightening serum morning and night during your skincare routine after cleansing and before your moisturizer. Apply serum over entire face or use as a spot treatment. For optimal results, apply a daily sunscreen.

What It Is:A brightening face serum with a potent form of Vitamin C and Salicylic Acid to help reduce the look of dark spots, hyperpigmentation & post-acne marks, A powerful dark spot corrector and brightening face serum., This lightweight brightening face serum is formulated with a potent form of Vitamin C, Salicylic Acid, and Peony Extract to help visibly reduce hyperpigmentation, dark spots, and post-acne marks.Key Ingredients:- Activated C is a stabilized form of Vitamin C that specifically addresses uneven skin tone and hyperpigmentation, goes to work immediately upon contact with the skin. Within Kiehl's Since 1851's formula, Activated C helps visibly diminish the look of dullness and uneven skin tone and helps increase clarity and brightness for a healthy-looking, more radiant complexion.- Buffered Salicylic Acid: Targeting skin's surface, it works together with Activated C to visibly reduce discoloration and renew the look of skin's texture.- Peony Extract: Used in traditional Chinese medicine, Peony Extract is a natural antioxidant that helps protect against oxidative damage. In Kiehl's Since 1851's formulas, it works with Activated C to enhance skin clarity.How To Use It:Use this brightening serum morning and night during your skincare routine after cleansing and before your moisturizer. Apply serum over entire face or use as a spot treatment. For optimal results, apply a daily sunscreen.

What It Is:A brightening face serum with a potent form of Vitamin C and Salicylic Acid to help reduce the look of dark spots, hyperpigmentation & post-acne marks, A powerful dark spot corrector and brightening face serum., This lightweight brightening face serum is formulated with a potent form of Vitamin C, Salicylic Acid, and Peony Extract to help visibly reduce hyperpigmentation, dark spots, and post-acne marks.Key Ingredients:- Activated C is a stabilized form of Vitamin C that specifically addresses uneven skin tone and hyperpigmentation, goes to work immediately upon contact with the skin. Within Kiehl's Since 1851's formula, Activated C helps visibly diminish the look of dullness and uneven skin tone and helps increase clarity and brightness for a healthy-looking, more radiant complexion.- Buffered Salicylic Acid: Targeting skin's surface, it works together with Activated C to visibly reduce discoloration and renew the look of skin's texture.- Peony Extract: Used in traditional Chinese medicine, Peony Extract is a natural antioxidant that helps protect against oxidative damage. In Kiehl's Since 1851's formulas, it works with Activated C to enhance skin clarity.How To Use It:Use this brightening serum morning and night during your skincare routine after cleansing and before your moisturizer. Apply serum over entire face or use as a spot treatment. For optimal results, apply a daily sunscreen.

What It Is:A brightening face serum with a potent form of Vitamin C and Salicylic Acid to help reduce the look of dark spots, hyperpigmentation & post-acne marks, A powerful dark spot corrector and brightening face serum., This lightweight brightening face serum is formulated with a potent form of Vitamin C, Salicylic Acid, and Peony Extract to help visibly reduce hyperpigmentation, dark spots, and post-acne marks.Key Ingredients:- Activated C is a stabilized form of Vitamin C that specifically addresses uneven skin tone and hyperpigmentation, goes to work immediately upon contact with the skin. Within Kiehl's Since 1851's formula, Activated C helps visibly diminish the look of dullness and uneven skin tone and helps increase clarity and brightness for a healthy-looking, more radiant complexion.- Buffered Salicylic Acid: Targeting skin's surface, it works together with Activated C to visibly reduce discoloration and renew the look of skin's texture.- Peony Extract: Used in traditional Chinese medicine, Peony Extract is a natural antioxidant that helps protect against oxidative damage. In Kiehl's Since 1851's formulas, it works with Activated C to enhance skin clarity.How To Use It:Use this brightening serum morning and night during your skincare routine after cleansing and before your moisturizer. Apply serum over entire face or use as a spot treatment. For optimal results, apply a daily sunscreen.

What It Is:A brightening face serum with a potent form of Vitamin C and Salicylic Acid to help reduce the look of dark spots, hyperpigmentation & post-acne marks, A powerful dark spot corrector and brightening face serum., This lightweight brightening face serum is formulated with a potent form of Vitamin C, Salicylic Acid, and Peony Extract to help visibly reduce hyperpigmentation, dark spots, and post-acne marks.Key Ingredients:- Activated C is a stabilized form of Vitamin C that specifically addresses uneven skin tone and hyperpigmentation, goes to work immediately upon contact with the skin. Within Kiehl's Since 1851's formula, Activated C helps visibly diminish the look of dullness and uneven skin tone and helps increase clarity and brightness for a healthy-looking, more radiant complexion.- Buffered Salicylic Acid: Targeting skin's surface, it works together with Activated C to visibly reduce discoloration and renew the look of skin's texture.- Peony Extract: Used in traditional Chinese medicine, Peony Extract is a natural antioxidant that helps protect against oxidative damage. In Kiehl's Since 1851's formulas, it works with Activated C to enhance skin clarity.How To Use It:Use this brightening serum morning and night during your skincare routine after cleansing and before your moisturizer. Apply serum over entire face or use as a spot treatment. For optimal results, apply a daily sunscreen.

What It Is:A brightening face serum with a potent form of Vitamin C and Salicylic Acid to help reduce the look of dark spots, hyperpigmentation & post-acne marks, A powerful dark spot corrector and brightening face serum., This lightweight brightening face serum is formulated with a potent form of Vitamin C, Salicylic Acid, and Peony Extract to help visibly reduce hyperpigmentation, dark spots, and post-acne marks.Key Ingredients:- Activated C is a stabilized form of Vitamin C that specifically addresses uneven skin tone and hyperpigmentation, goes to work immediately upon contact with the skin. Within Kiehl's Since 1851's formula, Activated C helps visibly diminish the look of dullness and uneven skin tone and helps increase clarity and brightness for a healthy-looking, more radiant complexion.- Buffered Salicylic Acid: Targeting skin's surface, it works together with Activated C to visibly reduce discoloration and renew the look of skin's texture.- Peony Extract: Used in traditional Chinese medicine, Peony Extract is a natural antioxidant that helps protect against oxidative damage. In Kiehl's Since 1851's formulas, it works with Activated C to enhance skin clarity.How To Use It:Use this brightening serum morning and night during your skincare routine after cleansing and before your moisturizer. Apply serum over entire face or use as a spot treatment. For optimal results, apply a daily sunscreen.

What It Is:A brightening face serum with a potent form of Vitamin C and Salicylic Acid to help reduce the look of dark spots, hyperpigmentation & post-acne marks, A powerful dark spot corrector and brightening face serum., This lightweight brightening face serum is formulated with a potent form of Vitamin C, Salicylic Acid, and Peony Extract to help visibly reduce hyperpigmentation, dark spots, and post-acne marks.Key Ingredients:- Activated C is a stabilized form of Vitamin C that specifically addresses uneven skin tone and hyperpigmentation, goes to work immediately upon contact with the skin. Within Kiehl's Since 1851's formula, Activated C helps visibly diminish the look of dullness and uneven skin tone and helps increase clarity and brightness for a healthy-looking, more radiant complexion.- Buffered Salicylic Acid: Targeting skin's surface, it works together with Activated C to visibly reduce discoloration and renew the look of skin's texture.- Peony Extract: Used in traditional Chinese medicine, Peony Extract is a natural antioxidant that helps protect against oxidative damage. In Kiehl's Since 1851's formulas, it works with Activated C to enhance skin clarity.How To Use It:Use this brightening serum morning and night during your skincare routine after cleansing and before your moisturizer. Apply serum over entire face or use as a spot treatment. For optimal results, apply a daily sunscreen.

What It Is:A brightening face serum with a potent form of Vitamin C and Salicylic Acid to help reduce the look of dark spots, hyperpigmentation & post-acne marks, A powerful dark spot corrector and brightening face serum., This lightweight brightening face serum is formulated with a potent form of Vitamin C, Salicylic Acid, and Peony Extract to help visibly reduce hyperpigmentation, dark spots, and post-acne marks.Key Ingredients:- Activated C is a stabilized form of Vitamin C that specifically addresses uneven skin tone and hyperpigmentation, goes to work immediately upon contact with the skin. Within Kiehl's Since 1851's formula, Activated C helps visibly diminish the look of dullness and uneven skin tone and helps increase clarity and brightness for a healthy-looking, more radiant complexion.- Buffered Salicylic Acid: Targeting skin's surface, it works together with Activated C to visibly reduce discoloration and renew the look of skin's texture.- Peony Extract: Used in traditional Chinese medicine, Peony Extract is a natural antioxidant that helps protect against oxidative damage. In Kiehl's Since 1851's formulas, it works with Activated C to enhance skin clarity.How To Use It:Use this brightening serum morning and night during your skincare routine after cleansing and before your moisturizer. Apply serum over entire face or use as a spot treatment. For optimal results, apply a daily sunscreen.

What It Is:A powerful brightening serum with correcting and skin-refining nutrients.Key Ingredients:Formulated with a potent 20% concentration of Stay-c (encapsulated vitamin C) to brighten the skin while adding high levels of antioxidants and protective benefits. Stay-c has been clinically proven to reduce photo damage, hyperpigmentation and acne scars as well as increase firmness and tone. Lactic acid smooths and refines skin texture while Msm, a healing mineral, reduces inflammation and increases the absorption of other nutrients.Free Of...- Fillers and binders, sulfates, parabens, phthalates, synthetic fragrance, synthetic dyes, gluten, petrolatum and mineral oil-

What It Is:A powerful brightening serum with correcting and skin-refining nutrients.Key Ingredients:Formulated with a potent 20% concentration of Stay-c (encapsulated vitamin C) to brighten the skin while adding high levels of antioxidants and protective benefits. Stay-c has been clinically proven to reduce photo damage, hyperpigmentation and acne scars as well as increase firmness and tone. Lactic acid smooths and refines skin texture while Msm, a healing mineral, reduces inflammation and increases the absorption of other nutrients.Free Of...- Fillers and binders, sulfates, parabens, phthalates, synthetic fragrance, synthetic dyes, gluten, petrolatum and mineral oil-

What It Is:The Dare To Derm Gift Set protects and smoothes skin around the clock. Kiehl's sunscreen serum is formulated to protect against sun damage while Kiehl's potent retinol serum visibly reduces wrinkles and our Vitamin C serum boosts radiance.Skin Type:All skin types, including sensitive.Skin Concern:Anti-aging, fine lines and wrinkles, sun damageSet Includes:- Retinol Skin-Renewing Daily Micro-Dose Serum, 1 oz.- Powerful Strength Line-Reducing Concentrate, 1.7 oz.- Better Screen Uv Serum, 0.5 oz.Key Ingredients:- Pure Retinol: Helps steadily accelerate skin surface turnover to bring new, fresh skin to the surface to help address visible signs of aging for skin that's visibly renewed and youthful looking.- Pure Vitamin C: L-Ascorbic Acid, also known as Pure Vitamin C, is a highly efficacious antioxidant known for its ability to improve the appearance of skin aging.- Spf 50+ Uva/Uvb provides advanced Uv filters to protect skin against Uv damage.How To Use It:- Reduce wrinkles with Retinol Skin-Renewing Daily Micro-Dose Serum. After cleansing, apply over the entire face, including the under eye and crow's feet area, carefully avoiding contact with the eye, eye lid area, and lips. If applied during the day, Kiehl's serum with Retinol should always be used with Spf.- Treat skin with Powerful Strength Line-Reducing Concentrate. After cleansing, apply two pumps of Kiehl's Vitamin C serum over entire face, avoiding the eye area. As it blends into skin, you may experience a feeling of warmth as the formula activates.- Protect skin with Better Screen Uv Serum. Apply Kiehl's Spf sunscreen generously as the last step of your skincare routine, before makeup. Wait 15 minutes before Uv exposure and re-apply every 2 hours.

What It Is:The Dare To Derm Gift Set protects and smoothes skin around the clock. Kiehl's sunscreen serum is formulated to protect against sun damage while Kiehl's potent retinol serum visibly reduces wrinkles and our Vitamin C serum boosts radiance.Skin Type:All skin types, including sensitive.Skin Concern:Anti-aging, fine lines and wrinkles, sun damageSet Includes:- Retinol Skin-Renewing Daily Micro-Dose Serum, 1 oz.- Powerful Strength Line-Reducing Concentrate, 1.7 oz.- Better Screen Uv Serum, 0.5 oz.Key Ingredients:- Pure Retinol: Helps steadily accelerate skin surface turnover to bring new, fresh skin to the surface to help address visible signs of aging for skin that's visibly renewed and youthful looking.- Pure Vitamin C: L-Ascorbic Acid, also known as Pure Vitamin C, is a highly efficacious antioxidant known for its ability to improve the appearance of skin aging.- Spf 50+ Uva/Uvb provides advanced Uv filters to protect skin against Uv damage.How To Use It:- Reduce wrinkles with Retinol Skin-Renewing Daily Micro-Dose Serum. After cleansing, apply over the entire face, including the under eye and crow's feet area, carefully avoiding contact with the eye, eye lid area, and lips. If applied during the day, Kiehl's serum with Retinol should always be used with Spf.- Treat skin with Powerful Strength Line-Reducing Concentrate. After cleansing, apply two pumps of Kiehl's Vitamin C serum over entire face, avoiding the eye area. As it blends into skin, you may experience a feeling of warmth as the formula activates.- Protect skin with Better Screen Uv Serum. Apply Kiehl's Spf sunscreen generously as the last step of your skincare routine, before makeup. Wait 15 minutes before Uv exposure and re-apply every 2 hours.

What It Is:A highly effective skin-brightening serum developed by Dr. Yannis Alexandrides that doubles down to target stubborn dark spots and dull-looking skin. Skin is visibly brighter and tone is more even after just one use.Inspired by in-clinic treatments at 111 Harley Street, the Dark Spot Correcting Serum is 111Skin's most advanced correcting treatment to date, delivering potent solutions without the harshness and downtime of lasers. Formulated with powerful actives, this serum breaks down existing pigmentation and prevents the production of new melanin.The triple action approach treats, targets and prevents stubborn hyperpigmentation and spots from resurfacing. Formulated for even the most sensitive of skin, the Dark Spot Correcting Serum can be used morning and night to get rid of current hyperpigmentation issues and regulate the over-production of melanin. Tranexamic acid and niacinamide work to improve the skin barrier and target uneven texture, tone and redness.Skin Type:For all skin types.SKIN Concern:Hyperpigmentation, discoloration, dullness, uneven tone and texture, dark spots, elasticity, skin damage.What It Does:- Reduces stubborn dark spots and hyperpigmentation.- Prevents future melanin production.- Brightens skin and evens tone.How To Use It:- Apply 1-2 pumps daily in Am/Pm after cleansing.- Follow with Repair Serum Nac Y2 (sold separately).- Not suitable for use with Black Diamond Retinol Oil (sold separately). Alternate nights when using.- For Am use, combine with Black Diamond Vitamin-c Brightening Booster Serum (sold separately) for added brightening benefits.- Depending on severity of hyperpigmentation, can use daily or a few times a week as a treatment product.- May also be used to correct visible discoloration on hands, chest and other areas of concern.

What It Is:Brighten, illuminate and protect the skin with the potent Vit C Booster Drops, formulated with 6% vitamin C complex.What It Does:- Vitamin C is a powerful antioxidant, proven to boost skins radiance and luminosity for a youthful, refreshed appearance.- Neutralizes visible effects of free radicals.- Supports the visible reduction in age spots, pigmentation.- Boosts radiance and luminosity.- Supports the prevention of environmental stresses to keep skin looking younger.How To Use It:Apply two to three drops to a cleansed, dry face and neck. Allow to dry thoroughly. Shake well before use. For best results use in the morning and evening before applying a serum or moisturizer.Cautions: Avoid eye contact. If eye contact occurs, rinse well with lukewarm water. Do not use on irritated skin, discontinue use if irritation occurs. Avoid excessive sun exposure and always use Spf protection while using this product.

What It Is:Brighten, illuminate and protect the skin with the potent Vit C Booster Drops, formulated with 6% vitamin C complex.What It Does:- Vitamin C is a powerful antioxidant, proven to boost skins radiance and luminosity for a youthful, refreshed appearance.- Neutralizes visible effects of free radicals.- Supports the visible reduction in age spots, pigmentation.- Boosts radiance and luminosity.- Supports the prevention of environmental stresses to keep skin looking younger.How To Use It:Apply two to three drops to a cleansed, dry face and neck. Allow to dry thoroughly. Shake well before use. For best results use in the morning and evening before applying a serum or moisturizer.Cautions: Avoid eye contact. If eye contact occurs, rinse well with lukewarm water. Do not use on irritated skin, discontinue use if irritation occurs. Avoid excessive sun exposure and always use Spf protection while using this product.