How to Use Hexapeptide-9
Complete guide to Hexapeptide-9 dosing, administration, timing, and protocol recommendations.
Quick Overview
Hexapeptide-9 is a collagen-inspired signaling peptide sold as Collaxyl (originally from Vincience, now Ashland) for anti-wrinkle and firming skincare. The idea is that a small repeat of a collagen sequence nudges skin cells to rebuild the junction between the outer and inner skin. It is a cosmetic ingredient, and the evidence for the original peptide is mostly old, small and company-run, although a 2025 trial on a modified cyclic version is more interesting.
Dosing Guidelines
Common Dose
Low single-digit percent of the ingredient in a finished product
Frequency
Once or twice daily
Dose Range
Published studies used 0.002% (cyclic form) up to 3% of a peptide gel
Note: These are cosmetic formulation levels, not personal doses. Product labels rarely state the actual peptide content. There is no injectable or oral use with human data.
Administration Method
Topical (serums, creams)
Best Time to Take
Morning and/or evening, on clean skin
Studies used twice-daily application. Timing is less important than steady use; use sunscreen in the day.
Protocol Duration
4-8 weeks in studies; ongoing use to maintain any effect
Possible Side Effects
Not everyone experiences these. Individual responses vary.
- •Generally well tolerated
- •No treatment-related adverse events reported in the 2025 trial
- •Mild irritation or redness possible, often from the overall formula
- •Contact allergy possible, as with any skincare ingredient
Frequently Asked Questions
What is the recommended dose for Hexapeptide-9?
Low single-digit percent of the ingredient in a finished product
How do you administer Hexapeptide-9?
Topical (serums, creams)
When is the best time to take Hexapeptide-9?
Morning and/or evening, on clean skin
How long should you use Hexapeptide-9?
4-8 weeks in studies; ongoing use to maintain any effect
This information is for educational purposes only. Always consult with a healthcare professional before using any peptide. Dosing information is based on research literature and community reports, not medical advice.