Ingredient Dictionary

Browse our entire database of scientifically-backed cosmetic ingredients. Uncover the chemistry behind your favorite skincare products.

Exfoliant

Hydrolyzed Sponge

The microscopic, needle-like physical exfoliator.

Hydrator / Humectant

Hydrolyzed Wheat Gluten

The moisture-trapping plant protein.

Hydrator / Humectant

Hydrolyzed Wheat Protein

The pore-refining, firming plant protein.

Active Ingredients

Hydrolyzed Yeast Extract

The cellular-signaling yeast proteins.

Active Ingredients

Hydroquinone

🚨 BANNED: The undisputed, prescription-grade dark spot eraser.

Functional / Support

Hydroxyacetophenone

The skin-soothing preservative booster.

Antioxidant

Hydroxydecyl Ubiquinone

The ultra-potent, synthetic CoQ10 analog.

Hydrator / Humectant

Hydroxyectoin

The extreme-stress survival molecule.

Functional / Support

Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer

The elite, salt-resistant gel maker.

Hydrator / Humectant

Hydroxyethyl Urea

The superior humectant that never feels sticky.

Functional / Support

Hydroxyethylcellulose

The natural, crystal-clear gel maker.

Exfoliant

Hydroxyethylpiperazine Ethane Sulfonic Acid

The enzyme-activating exfoliation buffer.