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APotentially durableStandard research/education caution
CMP-0136
Cosmetic ingredient
Tetrapeptide-21
Cosmetic / ECM remodeling
May improve skin firmness, texture, and wrinkle appearance through collagen/ECM support
Reading this compound Reference only
Information below is educational. Dosing, mechanisms and status fields are compiled from the source list at the bottom of this page — always verify against a licensed clinician before use.
Reference-only summary of publicly discussed or source-listed patterns. Not medical advice and not a personal recommendation.
Mechanism & Use
- Compound type
- Cosmetic peptide
- Primary mechanism
- Collagen-fragment signal peptide; ECM protein stimulation
- Primary market use
- Anti-aging skincare
Pharmacology
- Molecular weight (Da)
- 389.4
- Oral bioavailability
- N/A (topical cosmetic)
- Half-life
- N/A / not established for topical cosmetic use
- Route tags
- SubQ; Injectable; route-dependent
- Evidence level
- Cosmetic/Human
- Clinical status
- Cosmetic ingredient
- Value-for-money score
- 6 / 10
Reported protocol signal
No clean popular protocol found in uploaded sources; create as research/reference entry and verify before public protocol display.
For orientation only. See disclaimer — always consult a licensed clinician before use.
Notes
Low MW peptide with stronger topical plausibility than larger peptides, but evidence is mostly cosmetic/manufacturer-led