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Arginine/lysine Polypeptide

Peptide

Arginine/lysine Polypeptide

Firming, nourishing, repairing

Key Benefits

  • Supports surface hydration
  • Forms a smoothing conditioning film
  • Helps improve softness and suppleness
  • Complements firming formulas

How It Works

The peptide’s charged amino-acid side chains can associate with water and skin-surface components, supporting hydration and film formation. Peptide size and charge affect diffusion through the stratum corneum.

Visible firming or repair depends on concentration, molecular profile, delivery system, and finished-product testing. It does not directly replace collagen or permanently rebuild tissue.

Ingredient Details

INCI Name: Arginine/Lysine Polypeptide

Ingredient Type: Amino-acid polypeptide

Best For

Normal to dry skin · Dehydrated skin · Rough-feeling skin · Age-supportive routines

Research

View Bioactive Peptide Study →

What It Is

A polypeptide built primarily from the basic amino acids arginine and lysine and manufactured for cosmetic use.

Its molecular size, sequence distribution, and production method may vary by supplier.

What It Does

Helps condition the skin, support surface hydration, and create a smoother, more supple feel. It can complement formulas addressing visible fine lines and firmness.

Clinical performance depends on delivery and the complete product; it is not a structural replacement for collagen.

Arginine/lysine Polypeptide FAQs

Common questions about this ingredient in skincare.

What is Arginine/Lysine Polypeptide?
It is a polypeptide made mainly from arginine and lysine amino-acid units and used for conditioning, hydration, and age-supportive formulas.
Is it the same as collagen?
No. It is a distinct amino-acid polymer and does not become collagen when applied to skin.
What does it do for skin?
It can support water binding, film formation, softness, and a smoother surface feel within a well-designed formula.
Does it repair damaged skin?
It may support conditioning and appearance, but it should not be described as permanently repairing living tissue without specific clinical evidence.
Can it be used with other peptides?
Generally yes. Peptide combinations are common, although stability, compatibility, and evidence for the complete formula matter.
How strong is the research?
A clinical microneedle study included this polypeptide, but direct evidence for conventional topical use of the isolated ingredient remains limited.
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Products Featuring Arginine/lysine Polypeptide

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