Ingredient
Arginine
What is Arginine?
Arginine, also known as L-Arginine, is an amino acid that is naturally produced in the body and can be found in food sources such as meat, fish, dairy, and nuts. It is commonly synthesized for use in various products.
In personal care products, arginine is used for its potential role in skin health and hydration, as well as hair care, where it can enhance the appearance and texture. Some studies suggest that arginine may help improve circulation and support collagen production, but more research is needed.
When you see arginine on a label, it is mostly used for its skin-conditioning properties and is generally considered safe for topical use.
Commonly found in: Body Lotion, Skin Care, Makeup, Hair Care
Benefits
- May improve skin hydration and texture.
- Can support collagen production in skincare.
Arginine is recognized as safe for use in food and cosmetics by the FDA without special restrictions.
While some studies support benefits in skincare and circulation, evidence is not yet conclusive.
Arginine can be synthesized without animal products, making it suitable for vegan use.
Sources: Arginine Overview
Scout's take
Amino acid; functions as a buffering pH adjuster and contributes minor humectant activity. Inert at use levels.
The case against
There are minimal risks associated with arginine in cosmetics.
from the analysis of The Ordinary - The Natural Moisturizing Factors + HA( / ) · echoed in 1 other analysisGenerally considered safe with low risk of irritation.
from the analysis of Salt & Stone Body Wash - Bergamot & HinokiThe case for
It helps to improve skin texture and supports collagen production.
from the analysis of The Ordinary - The Natural Moisturizing Factors + HA( / )It helps maintain skin hydration and improves product texture.
from the analysis of Supergoop! Glowscreen Sunrise Hydrating Glowy Tinted Primer Sunscreen with Hyaluronic Acid + Niacinamide - SPF 40Improves skin hydration and supports collagen production.
from the analysis of Salt & Stone Body Wash - Bergamot & HinokiMore from Scout's analyses
Humectant / hydrating sugar or amino acid — draws moisture to skin.
from the analysis of W3LL People Expressionist Clear Brow GelArginine is an amino acid that helps to improve skin hydration and elasticity. It is used in formulations to support skin repair and regeneration. It is generally considered safe for use in skincare.
from the analysis of The Ordinary - The Natural Moisturizing Factors + HA( / )Arginine is an amino acid used to condition the skin and improve product texture. It helps in maintaining skin hydration. It is generally considered safe for use in cosmetics.
from the analysis of Supergoop! Glowscreen Sunrise Hydrating Glowy Tinted Primer Sunscreen with Hyaluronic Acid + Niacinamide - SPF 40Found in 11 products
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