Arginine

Arginine is an amino acid, a building block of proteins, naturally found in the skin. In skincare, it functions as a humectant, helping to attract and retain moisture in the skin. It also plays a role in skin repair and collagen production, contributing to overall skin health.

BenefitGood 2.8 / 4

Hydration i3.5 / 4

Whether the ingredient helps increase the skin’s water content — humectants that attract water, ingredients that reduce water loss, or ones that make skin feel less dry.

Barrier support i2.5 / 4

Whether it supports the skin barrier — restoring lipids, reducing water loss, aiding barrier repair, or strengthening the skin’s protective function.

Anti aging i2 / 4

Whether it can help visible signs of aging — fine lines, wrinkles, loss of firmness, or photoaging.

Soothing i1.5 / 4

Whether it can calm the skin — linked to less redness, irritation, discomfort, or visible reactivity.

Texture i1.5 / 4

Whether it can improve smoothness and surface texture — roughness, flaking, clogged pores, or unevenness. Exfoliating acids, retinoids, and smoothing moisturizers may score here.

RiskVery low 0 / 4

Rated by SpottyLabs' ingredient methodology, independent of brands.

What it helps with

• Hydrates skin
• Supports skin repair
• Boosts collagen production
• Antioxidant properties

Products with Arginine

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Frequently asked questions

What is Arginine?

Arginine is a semi-essential amino acid, meaning the body can produce it, but sometimes not enough. It's a fundamental component of proteins and is involved in various biological processes, including skin health.

How does Arginine benefit the skin?

Arginine helps to hydrate the skin by acting as a humectant, drawing moisture from the air into the skin. It also supports the skin's natural repair processes and can contribute to a more youthful appearance by aiding in collagen synthesis.