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Kiehl's
Clearly Corrective Dark Spot Serum

Versus

Proactiv
Post Blemish 10% Vitamin C Serum

Product category and function

Clearly Corrective Dark Spot Serum

Post Blemish 10% Vitamin C Serum

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

Post Blemish 10% Vitamin C Serum

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

Full ingredient list

Clearly Corrective Dark Spot Serum

Post Blemish 10% Vitamin C Serum

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, 3-o-ethyl ascorbic acid, butylene glycol, ethoxydiglycol, sodium citrate, polysorbate 20, citric acid, pentylene glycol, polyacrylate crosspolymer-6, propanediol, glycerin, caprylyl glycol, ethylhexylglycerin, tocopherol, sodium metabisulfite, glycyrrhiza glabra (licorice) root extract, tetrasodium glutamate diacetate, phenoxyethanol, hydrolyzed sodium hyaluronate, sodium benzoate, centella asiatica extract

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, 3-o-ethyl ascorbic acid, butylene glycol, ethoxydiglycol, sodium citrate, polysorbate 20, citric acid, pentylene glycol, polyacrylate crosspolymer-6, propanediol, glycerin, caprylyl glycol, ethylhexylglycerin, tocopherol, sodium metabisulfite, glycyrrhiza glabra (licorice) root extract, tetrasodium glutamate diacetate, phenoxyethanol, hydrolyzed sodium hyaluronate, sodium benzoate, centella asiatica extract

Notable ingredients

Clearly Corrective Dark Spot Serum

Post Blemish 10% Vitamin C Serum

Anti-acne: Salicylic acid

Skin brightening: 3-o-ethyl ascorbic acid

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

Soothing: Centella asiatica extract, Glycyrrhiza glabra (licorice) root extract

Skin brightening: 3-o-ethyl ascorbic acid

Antioxidant: 3-o-ethyl ascorbic acid, Centella asiatica extract, Sodium metabisulfite, Tocopherol

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Ingredients with their functions

Clearly Corrective Dark Spot Serum

Post Blemish 10% Vitamin C Serum

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