Acetyl Tetrapeptide-15 is a high-purity cosmetic peptide powder for sensitive-skin comfort, stinging sensation, heat feeling, and irritation-prone skin appearance support.

Physical form: This product is supplied as a freeze-dried powder.

This peptide is used in formulas targeting neurosensory discomfort in sensitive skin. It is a strong fit for calming serums, comfort creams, barrier-support gels, post-stress masks, and leave-on products designed for skin that easily feels hot, reactive, or uncomfortable.

Product Description: Use Acetyl Tetrapeptide-15 when the formula needs a premium peptide active for sensitive-skin comfort. It helps build a more advanced soothing story than basic humectants alone, while staying in cosmetic language for skin comfort rather than medical pain treatment.

Usage: Sensitive-skin serums, calming gels, comfort creams, barrier-support products, masks, post-stress skincare, and targeted leave-on soothing formulas.

Mixing method:

- Pre-dissolve in purified water, water/propanediol, water/butylene glycol, or water/glycerin before adding to the main batch.

- Add at the final step during cool-down when the formula is below 40°C. Avoid hot emulsification, hot-fill processing, and prolonged heating.

- Recommended finished-product pH is 5.0-7.0.

- Confirm clarity, preservative compatibility, peptide recovery, and irritation profile in the final formula, especially for sensitive-skin and eye-area products.

Usage rate: 0.001-0.01% pure peptide powder. Start at the low end for first prototypes and adjust by assay, stability, irritation, and claim substantiation.

Product characteristics: white to off-white cosmetic peptide powder.

Solubility: Best handled through a water/glycol stock solution; dispersible in cream or gel bases. Do not assume direct oil solubility without validation.

Storage: Store tightly closed, protected from moisture. Keep refrigerated at 2-8°C for long-term storage; avoid repeated opening and freeze-thaw cycling.