Sh-Octapeptide-4 is a biotechnology-produced peptide of eight amino acids patterned after a human peptide. Included in formulas aimed at improving the appearance of smoothness and firmness, and for skin conditioning; topical evidence remains limited.
Not typically evaluated for comedogenicity — no standardized rating available.
Our take
Is Sh-Octapeptide-4 a Good Ingredient?
Fair, because although it's proposed to improve smoothness and elasticity, strong clinical data are scarce and effects may be subtle. A small risk of sensitivity also exists for some users.
What it does
Skin Benefits
May soften the look of fine lines and support the appearance of elasticity, though evidence for notable outcomes is still limited. Contributes to a more refined, well-moisturized feel.
Where you'll find it
Uses in Skincare & Cosmetics
Included in facial serums, creams, and sheet masks designed for rejuvenating care.
Before you use it
Safety
Typically well tolerated with low irritation likelihood; stop use if discomfort or redness develops. No known cosmetic regulatory restrictions specific to this peptide.