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Humectant

Arginine

Conditionally essential amino acid - a building block of collagen and a natural component of NMF. Arginine moisturizes, neutralizes the acidity of formulations, and acts as an antioxidant, protecting the skin from oxidative stress.

amino acidNMFhydrationantioxidant
✓ Safe
Comedogenic Rating
0/5
Irritation Potential
0/5

What is it?

Arginine (L-Arginine) - a conditionally essential amino acid, a natural component of the skin's NMF, and a precursor of proline in collagen synthesis. Acts as an antioxidant (neutralizes peroxynitrite), pH regulator, and moisturizer. In INCI: Arginine or L-Arginine.

Used in barrier repair products, collagen and peptide serums, post-shave products (soothing), toners, and hair conditioners.

Key Benefits

✦
Natural component of NMF and hydration
Arginine - part of the skin's natural moisturizing factor. Attracts and retains moisture in the stratum corneum, restoring natural hydration.
◈
Support for collagen synthesis
Precursor of proline and hydroxyproline - key amino acids in collagen structure. Supports the synthesis and repair of skin connective tissue.
✧
Antioxidant protection
Neutralizes peroxynitrite (ONOO⁻) - a powerful reactive nitrogen oxidant that damages DNA and cellular proteins during inflammation.

Suitable for

for all skin typesmature skinsensitive skindehydrated skin

Main Actions

✓ hydration (NMF)✓ collagen support✓ antioxidant protection✓ barrier restoration✓ soothing
Amino acids in the INCI list

Arginine in cosmetics often comes together with other amino acids (serine, lysine, proline, glycine) - a sign of products that actively restore NMF and support skin barrier health.

CategoryHumectants

Frequently Asked Questions

What does Arginine do for skin?
Used in barrier repair products, collagen and peptide serums, post-shave products (soothing), toners, and hair conditioners.
Who should use Arginine?
Arginine is suitable for: for all skin types, mature skin, sensitive skin, dehydrated skin.
Are there any warnings about Arginine?
Arginine in cosmetics often comes together with other amino acids (serine, lysine, proline, glycine) - a sign of products that actively restore NMF and support skin barrier health.

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