Leucine

Leucine

AKA “L-leucine, 61-90-5, (S)-Leucine, (S)-2-Amino-4-methylpentanoic acid, (2S)-2-amino-4-methylpentanoic acid, Leucin, (S)-2-Amino-4-methylvaleric acid, (S)-(+)-Leucine, L-alpha-Aminoisocaproic acid”

Skin Conditioning

Ingredient Facts

Leucine

AKA: L-leucine, 61-90-5, (S)-Leucine, (S)-2-Amino-4-methylpentanoic acid, (2S)-2-amino-4-methylpentanoic acid, (S)-2-Amino-4-methylvaleric acid, (S)-(+)-Leucine, L-alpha-Aminoisocaproic acid

Skin Conditioning · Antistatic · EWG: 1

Synthetic

Skin Conditioner

Hair Care

Amino Acid

Clean

Leucine (abbreviated as Leu or L)[2] is a branched-chain л±-amino acid with the chemical formulaHO2CCH(NH2)CH2CH(CH3)2. Leucine is classified as a hydrophobic amino acid due to its aliphatic isobutyl side chain. It is encoded by six codons (UUA, UUG, CUU, CUC, CUA, and CUG) and is a major component of the subunits in ferritin, astacin, and other 'buffer' proteins. Leucine is an essential amino acid, meaning that the human body cannot synthesize it, and it therefore must be ingested. It is important for hemoglobin formation.

Effective at 0.04%

Solubility 21500

Formula

C6H13NO2

Mol. Weight

131.17

CAS #

61-90-5

Form

Powder

State

White solid; [Merck Index] White powder; [Sigma-Aldrich MSDS]

See origin →

Functions

Antistatic

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 1820, part of the branched-chain amino acid group. Used in modern skincare for skin conditioning and as a humectant to improve skin hydration and appearance.