Arginine/Lysine Polypeptide

What is Arginine/Lysine Polypeptide?

Arginine/Lysine Polypeptide consists of a chain of arginine and lysine amino acids, synthesized to form a cationic peptide. Its positive charge enables strong adhesion to skin's negative surface. Primarily used in skincare as a conditioning agent, it forms a lightweight film that locks in moisture and enhances texture. Found in lotions, creams, and serums, it supports hydration by drawing water to the skin while promoting even suppleness. This polypeptide mimics protein-like effects, aiding barrier function without heaviness. In formulations, it stabilizes emulsions and improves spreadability, contributing to overall product performance for daily skin maintenance.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.

Benefits

Enhances skin softness and smoothness.

Supports flexibility and moisture retention.

Provides lightweight conditioning effects.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Individuals with dry or rough skin.
Those with known peptide allergies.
People seeking texture improvement.
People sensitive to basic amino acids.
Users preferring non-comedogenic conditioners.
Individuals who react to cationic ingredients.

Safety Notes

  • Generally recognized as low hazard for topical use.
  • Non-comedogenic, suitable for acne-prone skin.

Frequently Asked Questions about Arginine/Lysine Polypeptide

What is Arginine/Lysine Polypeptide?

A synthetic peptide made from arginine and lysine amino acids, used for skin conditioning in creams and serums.

Is it safe for daily use?

Considered low hazard and non-irritating for most topical applications.

What skin types suit it?

Ideal for dry or normal skin needing conditioning, non-comedogenic for acne-prone.