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Kiehl's
Clearly Corrective Dark Spot Serum

Versus

Keys Soulcare
Promise Serum With Niacinamide

Product category and function

Clearly Corrective Dark Spot Serum

Promise Serum With Niacinamide

Serums/Treatments	Serums/Treatments
Concentrated formulas for hydrating and addressing skin issues.	Concentrated formulas for hydrating and addressing skin issues.
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Ingredient highlights

Clearly Corrective Dark Spot Serum

Promise Serum With Niacinamide

Ingredient info	Ingredient info
Alcohol-free Paraben-free SLS-free Mica-free Fragrance-free	Alcohol-free Paraben-free SLS-free Mica-free Fragrance-free vegan cruelty-free

Full ingredient list

Clearly Corrective Dark Spot Serum

Promise Serum With Niacinamide

No. of common ingredients = 0
Aqua (water), propylene glycol, glycerin, alcohol denat, peg/ppg/polybutylene glycol-8/5/3 glycerin, hydroxypropyl tetrahydropyrantriol, 3-o-ethyl ascorbic acid, ppg-6-decyltetradeceth-30, phenoxyethanol, salicylic acid, xanthan gum, hydroxyethylcellulose, potassium hydroxide, citric acid, sodium citrate, tocopheryl acetate, lavandula angustifolia oil (lavender oil), disodium edta, adenosine, linalool, butylene glycol, tocopherol, citrus aurantium tachibana peel extract, paeonia suffruticosa root extract. 8	Water (aqua), niacinamide, glycerin, propylene glycol, erythritol, zinc pca, ppg-10 methyl glucose ether, tremella fuciformis sporocarp extract, 3-o-ethyl ascorbic acid, camellia sinensis leaf powder, tocopheryl acetate, peg-32, peg-180, xanthan gum, coceth-7, ppg-1-peg-9 lauryl glycol ether, peg-40 hydrogenated castor oil, disodium edta, phenoxyethanol, ethylhexylglycerin, caprylyl glycol

No. of common ingredients = 0

Total Number of ingredients = 24

Total Number of ingredients = 21

Aqua (water), propylene glycol, glycerin, alcohol denat, peg/ppg/polybutylene glycol-8/5/3 glycerin, hydroxypropyl tetrahydropyrantriol, 3-o-ethyl ascorbic acid, ppg-6-decyltetradeceth-30, phenoxyethanol, salicylic acid, xanthan gum, hydroxyethylcellulose, potassium hydroxide, citric acid, sodium citrate, tocopheryl acetate, lavandula angustifolia oil (lavender oil), disodium edta, adenosine, linalool, butylene glycol, tocopherol, citrus aurantium tachibana peel extract, paeonia suffruticosa root extract.

Water (aqua), niacinamide, glycerin, propylene glycol, erythritol, zinc pca, ppg-10 methyl glucose ether, tremella fuciformis sporocarp extract, 3-o-ethyl ascorbic acid, camellia sinensis leaf powder, tocopheryl acetate, peg-32, peg-180, xanthan gum, coceth-7, ppg-1-peg-9 lauryl glycol ether, peg-40 hydrogenated castor oil, disodium edta, phenoxyethanol, ethylhexylglycerin, caprylyl glycol

Notable ingredients

Clearly Corrective Dark Spot Serum

Promise Serum With Niacinamide

Anti-acne: Salicylic acid

Skin brightening: 3-o-ethyl ascorbic acid

Antioxidant: 3-o-ethyl ascorbic acid, Tocopherol, Tocopheryl acetate

Anti-acne: Niacinamide

Soothing: Niacinamide

Skin brightening: Niacinamide, 3-o-ethyl ascorbic acid

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Ingredients with their functions

Clearly Corrective Dark Spot Serum

Promise Serum With Niacinamide

Aqua (water)

Also-called: Aqua, Aqua/Water, Water/Aqua/Eau, Aqua/Water/Eau | Function: Skin conditioning, Solvent

Water serves as a fundamental component in skincare products, often listed as the first ingredient, which means it's the most abundant. It acts as a solvent, helping to dissolve other ingredients and facilitate the application and absorption of products.

Propylene glycol

Function: Viscosity controlling, Skin conditioning, Humectant/Moisturizer, Solvent

We don’t have a detailed description of this ingredient yet.

Glycerin

Also-called: Glycerol | Function: Skin-identical ingredient, Viscosity controlling, Skin protecting, Skin conditioning, Humectant/Moisturizer, Solvent

We don’t have a detailed description of this ingredient yet.

Water (aqua)

Also-called: Aqua, Aqua/Water, Water/Aqua/Eau, Aqua/Water/Eau | Function: Skin conditioning, Solvent

Niacinamide

Also-called: Nicotinamide, Vitamin B3 | Function: Anti-acne, Soothing, Skin brightening, Cell-signaling ingredient

Niacinamide, also known as vitamin B3, is a potent skincare ingredient renowned for its wide-ranging benefits.

It helps to strengthen the skin's barrier function, improve skin texture, and reduce the appearance of fine lines and wrinkles. It's also effective in managing acne and reducing redness and inflammation.

Furthermore, it inhibits melanin production, thereby assisting in fading hyperpigmentation and evening out skin tone. Safe for almost all skin types, niacinamide is a versatile ingredient found in various skincare products.

Glycerin

Also-called: Glycerol | Function: Skin-identical ingredient, Viscosity controlling, Skin protecting, Skin conditioning, Humectant/Moisturizer, Solvent