Ingredient

Arginine

Low risk

FunctionAmino acid (conditioning)

What it is — Arginine (INCI: Arginine) is a pH-adjusting ingredient.

What it does — It is commonly used as an amino acid that fills internal damage sites and improves hair tensile strength.

Typical use — It is used in very small amounts to bring a formula to its target pH so the product is stable and skin-comfortable. Getting pH right keeps a product both stable and comfortable to wear.

Who it suits / good to know — Used at trace, neutralized levels as part of the base. It is a processing aid rather than an active. There is nothing to react to at the trace levels used here.

Safety — DHALIORA grades it low risk in its EWG-style, ingredient-by-ingredient review. This reflects the ingredient in general and is not medical advice; patch-test if your skin is easily irritated.

How grades are set — Risk reflects our own reading of publicly available safety data, an EWG-style reading shown at the worst-case grade we've assigned this ingredient across products. It isn't a third party's proprietary score, and it isn't medical advice. Always read the packaging and patch-test where indicated.
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