Peptides / Skin and hair
Modified form · 3 amino acids · 676 Da
Palmitoyl tripeptide-38
Palmitoyl tripeptide-38 is a cosmetic peptide used in skin products marketed for wrinkles and found in Matrixyl synthe'6, not an approved drug. No published study result for it is in PepBank yet. PepBank shows no results on palmitoyl tripeptide-38 from studies in people, animals, the lab or computer predictions. Data as of 2026-10-30.
Also known as Pal-Lys-Met(O2)-Lys, palmitoyl tripeptide 38, Matrixyl synthe'6, Matrixyl synthe6
3 amino acids, from first to lastKMK
Evidence level: No study results yetPepBank has no study results for palmitoyl tripeptide-38 yet.
Results in people
0
0% of 0 results
Results in animals
0
0% of 0 results
Results in lab cells
0
0% of 0 results
From computer models
0
0% of 0 results
Overview
Palmitoyl tripeptide-38 at a glance
| What it is | Modified form, 3 amino acids |
|---|---|
| Approval | Regulatory status not recorded |
| In sport | Status unknown |
| Studies | 3 studies with results. None of them gave palmitoyl tripeptide-38. |
| Clinical trials | None registered |
| Community use | Topical cosmetic products marketed for wrinkles |
The science
What is palmitoyl tripeptide-38?
A palmitoylated cosmetic tripeptide used in products marketed for wrinkles.
3
Amino acids in one chain
Palmitoyl tripeptide-38 structure and chemistry
The key facts about the molecule. Long codes are in the closed section below.
Sequence, 3 amino acidsFrom the first amino acid to the last
+K1M+K
Darker means more water-repelling+ and − show charge in the bodyOutlined: changed amino acid
Structure
Palmitoyl tripeptide-38 is a modified form of 3 amino acids, with no ring, 2 changed amino acids.
Formula
C33H65N5O7S
Molecular weight
676 g/mol
CAS number
1101448-24-1
Development
Sederma / Croda (Matrixyl synthe'6 cosmetic ingredient). Highest phase: unknown.
Identifiers
PubChem 71587932, UNII T7A529FB8O
Full sequence, SMILES and InChIKey
Three-letter sequenceLys-Met(O2)-Lys
InChIKeyRGXYBFJDNNODFP-AWCRTANDSA-N
SMILESCCCCCCCCCCCCCCCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCS(=O)(=O)C)C(=O)N[C@@H](CCCCN)C(=O)O
The evidence
What palmitoyl tripeptide-38 studies show
Results grouped by what the studies measured. Each card shows where its results come from.
No study results yetPepBank has no study results for palmitoyl tripeptide-38 yet.
Key palmitoyl tripeptide-38 studies
No study of palmitoyl tripeptide-38 has results in PepBank yet.
Palmitoyl tripeptide-38 clinical trials
ClinicalTrials.gov lists no trial of palmitoyl tripeptide-38. A trial under another name may exist.
Status and safety
Is palmitoyl tripeptide-38 approved?
FDA
United States
Status unknownStatus unknown.
EMA
European Union
Status unknownStatus unknown.
WADA
Sport
Not recordedStatus unknown.
Regulatory status not recorded. Status unknown.
Laws and labels change, so check the regulator for the current status.
Palmitoyl tripeptide-38 side effects and safety
PepBank has no safety result from studies of palmitoyl tripeptide-38 yet. That does not mean palmitoyl tripeptide-38 is safe.
From the community
How people use it
What people report online. It comes from forums and guides, not from studies.
Community-reported. Not tested in trials.
The cited source reports this use. The report does not establish clinical efficacy or safety.
Reported routines and cautions
What people use it for
- Topical cosmetic products marketed for wrinklesS1
Reported regimens
| Context | Route | Amount | How often | How long | Agreement | Sources |
|---|---|---|---|---|---|---|
| Topical cosmetic products marketed for wrinkles | topical | Not stated | Not stated | Not stated | Single affiliate guide. The quote supports topical use. Underlying reports and product contents were not independently verified. | S1 |
Community sources
- S1Palmitoyl Tripeptide-38_Dosage, benefits & legal statuspeptidedecoding.comcarries seller links, not linked
Gaps
The source does not establish product identity, independent outcomes or a safe regimen.
Questions and more
Ask a question about palmitoyl tripeptide-38
The answer links to every study it uses.
Sources
- Database: PepBank data for palmitoyl tripeptide-38 (data version 308560)
- Regulator: FDA status record
- Regulator: EMA status record
- Regulator: WADA status record
- Community: community sources (forums and guides), as summarized in the PepBank community file
AI wrote and checked these results. AI can make mistakes, so check important results against the source.
PepBank is a research reference. Talk to a doctor before you use any peptide.
Ask your AI about palmitoyl tripeptide-38
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