Free shipping over $75 · Vegan · Fragrance-free · Cruelty-free
Grow · single active

Biotinyl Tripeptide-1

Biotinoyl Tripeptide-1
$44

A targeted serum for brows, hairline, or areas that can look sparse. It supports the appearance of fuller, healthier-looking strands with a lightweight, non-greasy feel.

  • EncouragesFor fuller-looking hair and lashes
  • TargetsBrows, hairline, sparse-looking areas
  • TextureLightweight, fast-absorbing, layers cleanly
VeganFragrance-freeCruelty-freePatch-test friendly

Free shipping over $75 · 30-day returns

How to use +

Apply 2-3 drops to clean skin morning and night, before heavier creams or oils. Patch test first. Finish daytime routines with SPF.

Full ingredient list +

Aqua/Water, Propanediol, Glycerin, Biotinoyl Tripeptide-1, Sodium Citrate, Citric Acid, Phenoxyethanol, Ethylhexylglycerin.

The science +

Biotinyl Tripeptide-1 is a hair-density peptide used for for fuller-looking hair and lashes. Seralune uses 3% peptide complex so the formula has a clear job and an easy place in your routine.

Concentration
3%
Format
30 ml
Skin type
All
Use
AM / PM
pH
5.5-6.0
Pairs with
Gentle cleanser
Why single-active

The honest formula.

Most serums bury one working ingredient behind a dozen that do little. We lead with the active, name it on the front, and leave out everything it doesn't need.

3%
Active concentration
1
Studied active per bottle
0
Added fragrance or dyes
Complete the routine

Pairs well with

SmoothLOT · SA-04
SYN-AKE4% Solution
Dipeptide Diaminobutyroyl Benzylamide Diacetate
$48 Add ->
FirmLOT · MX-30
Matrixyl
3000
8% Solution
Palmitoyl Tripeptide-1 and Tetrapeptide-7
$44 Add ->