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Arginine Hcl

What Arginine Hcl is & what it does

Arginine Hcl is the hydrochloride salt of the amino acid arginine, used as a cosmetic ingredient. In skincare and sunscreen formulas it serves as a skin conditioning agent and can also help adjust or buffer the pH of the product. A notable property is that, as an amino acid derivative, it is water-soluble and compatible with hydrating, water-based formulas.

What does Arginine Hcl do in skincare?

Arginine Hcl is the hydrochloride salt of the amino acid arginine and acts as a skin-conditioning agent. It can also help adjust or buffer the pH of a formula. Being water-soluble, it fits well into hydrating, water-based products.

Is Arginine Hcl safe?

Arginine Hcl is an amino acid salt used in cosmetics for conditioning and pH-related purposes, and it is generally well tolerated. As with any ingredient, its role in a product depends on concentration and the overall formula. If you have specific sensitivities, patch testing is advisable.

Is Arginine Hcl natural or synthetic?

Arginine itself is a naturally occurring amino acid, and the Hcl salt is typically produced through manufacturing, often via fermentation or synthesis. The cosmetic-grade ingredient is purified for consistency. Both bio-based and synthetic routes can yield the same compound.

Sunscreens with Arginine Hcl

We rate 12 sunscreens that contain it, showing the top 10 by overall score:

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