Synergistically boosts collagen stimulation with palmitoyl tripeptide-1
Supports the skin's extracellular matrix and structural resilience
Clinically linked to improved skin firmness
Well tolerated across skin types
Palmitoyl Tetrapeptide-7 Description
Palmitoyl tetrapeptide-7 is built around the GQPR peptide sequence and is designed to work synergistically alongside palmitoyl tripeptide-1 in the Matrixyl 3000 blend, rather than as a standalone ingredient.
Research on the combination has found it enhances the collagen stimulating effect of palmitoyl tripeptide-1 beyond what either peptide achieves alone, and a clinical study testing a multi peptide formula built around this combination found measurable improvements in skin firmness and structural resilience after regular use. Separately, palmitoyl tetrapeptide-7 has been studied for a role in modulating inflammatory signaling in skin, which may contribute a calming effect alongside its structural support, though this secondary activity is less thoroughly documented than its partnership with palmitoyl tripeptide-1.
Palmitoyl Tetrapeptide-7 References
Topical Peptide Treatments with Effective Anti Aging Results, Cosmetics (MDPI), 2017
Clinical Evidence of the Efficacy and Safety of a New Multi Peptide Anti Aging Topical Eye Serum, Journal of Cosmetic Dermatology, 2023
Our team reviews ingredient research and uses up-to-date evidence to rate ingredients based on the categories below.
Best
Ingredients with the most rigorous and convincing evidence. These are the standouts backed by consistent findings across independent, peer reviewed clinical research.. When we call an ingredient Best, it has earned that distinction through genuine, reproducible proof that it improves skin.
Good
Reliable, well tolerated ingredients that do their job without complaint. They may not carry the headline benefits of a Best rated active, but they hydrate, stabilize a formula, or support the ingredients around them in ways that make a real difference in how a product performs and feels.
Average
Ingredients that are perfectly safe and serve a clear function, typically as an emollient, thickener, or filler, but do not offer any meaningful skin benefit beyond that basic job. Not a red flag, just not a reason to choose one product over another.
Bad/Worst
Ingredients with documented potential to irritate skin, disrupt the barrier, or trigger sensitization in some users, often synthetic fragrance, drying forms of alcohol, or certain essential oils. Not automatically a dealbreaker for every skin type, but worth knowing about before you commit to a product.
