There are forty-plus peptides for sale.
Not all of them earn their place. The cosmetic peptide market is full of variants that exist because a supplier wanted to put a trademark on a small variation — not because the variant performs better than the original.
We narrowed our line to five. Each entry below is the abbreviated case for why it made the cut.
1. Copper Tripeptide-1 (GHK-Cu)
The OG copper peptide. Most studied. Exists endogenously in human plasma. In published cosmetic literature since the 1980s. The blue tint is the copper ion. There is no newer copper peptide that out-performs it on the data.
OCTAVE 01 — 1.0%. OCTAVE 05 — 0.5%.
2. Matrixyl 3000™
The collagen-signal blend with the longest paper trail. Twenty years of in-vivo data. The palmitoyl chain is what makes it penetrate. The combination of Palmitoyl Tripeptide-1 + Palmitoyl Tetrapeptide-7 is the part the data is on.
OCTAVE 02 — 10%.
3. Argireline® (Acetyl Hexapeptide-8)
The expression-line peptide. Mechanism not biologically related to botulinum toxin. The data is real at 5–10%: smoother appearance of expression lines after twenty-eight days.
OCTAVE 03 — 10%.
4. Snap-8 + Eyeseryl®
The eye area pairing. Snap-8 targets dynamic crow's feet. Eyeseryl targets the appearance of micro-puffiness and shadow.
OCTAVE 04 — 5% + 2%.
5. Capixyl™
The growth peptide. Acetyl Tetrapeptide-3 paired with red clover. In-vivo data link sixteen weeks of consistent use to the appearance of denser-looking hair.
OCTAVE 05 — 5%.
Peptides we considered and dropped.
- BPC-157. Injectable in research papers. No legitimate cosmetic topical pathway.
- TB-500. Banned by WADA.
- Melanotan II. Banned in the EU.
- Ipamorelin, CJC-1295. Prescription growth hormone secretagogues. Not formulatable as cosmetics.
- SYN-AKE. A small molecule sold as a peptide alternative; weaker data set.
If you read those names anywhere on a cosmetic label, ask why.