Argireline vs Matrixyl 3000: what the 12-week trial showed
A 2023 double-blind RCT put both peptides head-to-head on crow's feet. Matrixyl 3000 edged ahead, but the more interesting story is what neither did.
June 2, 2026 · Maya Chen
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#peptides
Every article tagged peptides, newest first.
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product-science -
product-science Copper peptides (GHK-Cu): what 4,000 genes actually do
GHK-Cu has the deepest research dossier in cosmetic peptide science. The data is real, the optimal dose is low, and the marketing rarely tells you the second half.
May 30, 2026 · Maya Chen
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product-science Retinyl palmitate: does pro-retinol eye cream actually work?
Pro-retinol eye creams are everywhere. The conversion math from retinyl palmitate to retinoic acid says they barely qualify as retinoids at all.
May 14, 2026 · Maya Chen
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product-science What peptides actually do in your moisturizer (and don't)
Peptides are sold as 'Botox in a bottle', but the evidence base is thinner than for retinoids. Here is what each class actually does on real skin.
May 7, 2026 · Maya Chen