Back to Ingredient Dictionary

ISOLEUCINE

Description

Isoleucine is an essential branched-chain amino acid (BCAA) that plays a crucial role in skin health and overall cellular function. This non-polar, aliphatic amino acid is vital for protein synthesis and cannot be produced by the human body, necessitating its intake through diet or topical application in skincare formulations.

In dermatological applications, isoleucine contributes to the skin's natural moisturizing factor (NMF), helping to maintain hydration and skin barrier function. It supports collagen synthesis, which is essential for skin elasticity and firmness. Isoleucine also aids in wound healing and tissue repair processes, making it beneficial for compromised or aging skin.

As an antioxidant, isoleucine helps protect skin cells from oxidative stress and environmental damage. It may assist in regulating sebum production, potentially benefiting acne-prone skin. In skincare formulations, isoleucine is often combined with other amino acids to create peptides that target specific skin concerns such as fine lines, uneven texture, or hyperpigmentation.

Isoleucine's stability in various pH environments and its compatibility with other skincare ingredients make it a versatile component in serums, moisturizers, and anti-aging products.