Disclosure: This page may contain affiliate links. Read our full disclosure policy.

Proactiv
Post Blemish 10% Vitamin C Serum

Versus

it Cosmetics
Bye Bye Dark Spots Niacinamide Serum

Product category and function

Post Blemish 10% Vitamin C Serum

Bye Bye Dark Spots Niacinamide Serum

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

Ingredient highlights

Post Blemish 10% Vitamin C Serum

Bye Bye Dark Spots Niacinamide 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

Post Blemish 10% Vitamin C Serum

Bye Bye Dark Spots Niacinamide Serum

No. of common ingredients = 0
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 7	Aqua/water/eau, propylene glycol, glycerin, niacinamide, peg/ppg/polybutylene glycol-8/5/3 glycerin, hydroxypropyl tetrahydropyrantriol, caffeine, 3-o-ethyl ascorbic acid, citric acid, phenoxyethanol, ppg-6-decyltetradeceth-30, salicylic acid, xanthan gum, sodium citrate, hydroxyethylcellulose, potassium hydroxide, disodium edta, limonene, geraniol, citronellol, tocopherol, parfum.

No. of common ingredients = 0

Total Number of ingredients = 21

Total Number of ingredients = 22

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

Aqua/water/eau, propylene glycol, glycerin, niacinamide, peg/ppg/polybutylene glycol-8/5/3 glycerin, hydroxypropyl tetrahydropyrantriol, caffeine, 3-o-ethyl ascorbic acid, citric acid, phenoxyethanol, ppg-6-decyltetradeceth-30, salicylic acid, xanthan gum, sodium citrate, hydroxyethylcellulose, potassium hydroxide, disodium edta, limonene, geraniol, citronellol, tocopherol, parfum.

Notable ingredients

Post Blemish 10% Vitamin C Serum

Bye Bye Dark Spots Niacinamide Serum

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

Anti-acne: Niacinamide, Salicylic acid

Soothing: Niacinamide

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

Load all

Ingredients with their functions

Post Blemish 10% Vitamin C Serum

Bye Bye Dark Spots Niacinamide Serum

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.

3-o-ethyl ascorbic acid

Also-called: 3-O-Ethyl Ascorbate, EAC, Ethyl Ascorbic Acid, Ethyl-Ascorbic Acid | Function: Skin conditioning, Skin brightening, Antioxidant

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

Butylene glycol

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

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