Proline

Proline

AKA “L-proline, L-(-)-Proline, (2S)-pyrrolidine-2-carboxylic acid, (S)-Pyrrolidine-2-carboxylic acid, (-)-Proline, 2-pyrrolidinecarboxylic acid, (-)-(S)-Proline, (S)-2-Pyrrolidinecarboxylic acid”

Synthetic

Ingredient Facts

Proline

AKA: L-proline, L-(-)-Proline, (2S)-pyrrolidine-2-carboxylic acid, (S)-Pyrrolidine-2-carboxylic acid, (-)-Proline, 2-pyrrolidinecarboxylic acid, (-)-(S)-Proline, (S)-2-Pyrrolidinecarboxylic acid

Synthetic · Hair Conditioning · EWG: 4

Synthetic

Skin Conditioner

Hair Care

Amino Acid

Synthetic

Clean

Proline is an amino acid that helps strengthen and condition hair while softening skin, leaving both feeling smoother and more supple.

Solubility 162000

Formula

C5H9NO2

Mol. Weight

115.13

CAS #

147-85-3, 609-36-9

Form

Powder

State

Dry Powder

See origin →

Functions

Hair Conditioning

A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.

Skin Conditioning

A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.

Locks in moisture

Traditional Use

An amino acid first isolated in 1901. While not traditionally used as a standalone ingredient, proline occurs naturally in skin collagen and has been studied for its role in skin structure and wound healing.