Glycine Max (Soybean) Polypeptide

Glycine max (soybean) polypeptide consists of peptide fragments derived from soy proteins and is used in topical products. It's applied for skin conditioning and to refine the look of texture, though evidence for firming or age-related claims remains limited.
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Ingredient Snapshot

Overview
A soy-derived peptide that helps refine skin's texture and smoothness.
Category
Skin Conditioning, Tone/Texture
Type
Peptide

Ingredient Ratings

Overall Rating

Fair

Comedogenic Risk

None

Skin Benefits

May soften and refine the look of skin texture for a smoother appearance. Evidence for firming or age-related effects is limited, so results can vary.

Uses In Skincare & Cosmetics

Featured in serums, moisturizers, and eye creams aiming to improve skin feel. Also used in sheet masks and lotions as a conditioning peptide component.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

Usually well tolerated, but those with known soy allergies should use caution due to potential sensitization. Mild irritation is possible in sensitive skin. No widely recognized ingredient-specific regulatory restrictions at standard cosmetic use levels.

Is Glycine Max (Soybean) Polypeptide a Good Ingredient?

It's Fair because evidence for firming or anti-aging outcomes is limited and effects can be inconsistent from product to product, and soy-sensitized individuals may be at risk of reactions, which together hold it back from a better rating.