Tetrapeptide-21

Firmness / Aging

INCI: Tetrapeptide-21

In short · TL;DR

Category

Peptides

Effect

Elastin synthesis booster, skin firmness

Concentration

Stock 3-5%, pure 0.001-0.01%

Effect

Elastin synthesis booster, skin firmness

Mechanism

GEKG sequence activates fibroblast signaling, increases HA

Typical concentration

Stock 3-5%, pure 0.001-0.01%

Onset

8-12 weeks for firmness/glow

Cautions

Heat unstable

Evidence & references

Lintner et al., J. Cosmet. Dermatol. 2013

This page is reference information and does not guarantee efficacy. Figures vary by test conditions (in vitro / manufacturer / concentration). It does not indicate pharmaceutical efficacy.

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