Arginine

ARGININE

Data confidence:High

Function

Humectant, Skin Conditioning Agent, Antioxidant

EWG Safety Score

1/10Low concern

About this ingredient

Arginine is a semi-essential amino acid used in cosmetics primarily as a skin conditioning agent and humectant. It helps improve skin hydration, supports the skin barrier function, and is often included in anti-aging and firming formulations due to its role in collagen synthesis and blood flow promotion.

Found in 3+ sunscreens