Tetrapeptide-49
A skin conditioning peptide ingredient listed in EU cosmetic databases—often used in anti-aging formulas.
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Spotted this on a label?
Tetrapeptide-49
That’s the INCI name—the official way it appears on the back of your serum or cream. Same ingredient, different marketing names.
Structure (cute edition)
Tetrapeptide-49 is the synthetic peptide consisting of arginine, phenylalanine, and tyrosine.
INCI: TETRAPEPTIDE-49 · ~4 amino acids in our simplified view
Research & public records
Counts and links from public databases (PubMed, ClinicalTrials.gov, Wikidata, NIH drug nomenclature). Educational only — not medical advice.
ChEMBL: CHEMBL3659217
What brands say it does
Tetrapeptide-49 EU CosIng describes it as: Tetrapeptide-49 is the synthetic peptide consisting of arginine, phenylalanine, and tyrosine.. In skin care it is typically a supporting active—meant to complement hydrators and antioxidants rather than work alone.
Where you’ll find it
Anti-aging serums, moisturizers, and multi-peptide complexes. Look for Tetrapeptide-49 on the INCI list.
Other names you might see
Tetrapeptide-49
Similar peptides
Educational only—not medical advice. Results vary; talk to a dermatologist for personal recommendations.