SingleSkin & Cosmetic

Biotinoyl Tripeptide-1 2-6 ppm

Topical biotin-conjugated tripeptide researched for follicular anchorage, keratinocyte proliferation, and cosmetic hair retention models.

Mechanism

Enhances dermal follicular anchorage and cellular viability by stimulating the synthesis of extracellular matrix adhesion proteins collagen IV and laminin-5 while promoting hair-bulb keratinocyte proliferation.

Dosing

Standard investigational protocols incorporate topical formulations standardized to 6 ppm (equivalent to 0.0006% pure peptide mass) applied to the target area twice daily.

Reconstitution

Dissolve raw peptide into a sterile aqueous stock solution (e.g., 10 mg/mL) before integrating into a chilled topical water phase below 40°C to achieve a 2 to 6 ppm target concentration.

Storage

Store pure lyophilized powder protected from moisture and light in a cool environment; keep aqueous stock solutions refrigerated with appropriate laboratory preservative systems.

Mix & measure Biotinoyl Tripeptide-1 2-6 ppm

Pre-filled with this protocol's recommended BAC water and documented starting dose — edit any field to run your own numbers.

Mix & measure Biotinoyl Tripeptide-1 2-6 ppm

Vial strength → BAC water → target dose

Vial strength

BAC water

Target dose

Concentration—

Draw volume—

On the syringe—

Total doses in vial: —

100u80u60u40u20u0

U-100 syringe: 100 units = 1 mL

Reconstitution math only — not dosing advice. U-100 syringe: 100 units = 1 mL. Advanced calculator →

Dosing Chart

Phase / Day(s)	Dose & Frequency	Volume (U-100 units / mL)
Baseline Ex Vivo Model	2 ppm (0.0002%) topical / Twice daily	0.2 mg per 100 g batch
Optimal In Vitro Range	5 ppm (0.0005%) topical / Twice daily	0.5 mg per 100 g batch
Documented Clinical Equivalent	6 ppm (0.0006%) topical / Twice daily	0.6 mg per 100 g batch

Reconstitution Steps

1
Confirm the chemical identity and purity of raw Biotinoyl Tripeptide-1 powder against the analytical certificate.
2
Prepare a calibrated stock solution by dissolving 1.0 g of peptide into 100 mL of purified laboratory water to achieve a 10 mg/mL concentration.
3
Formulate or source the compatible water-soluble topical cosmetic vehicle.
4
Using a precision micropipette, draw 60 µL of the stock solution (equivalent to 0.6 mg pure peptide) per 100 g of base to reach a 6 ppm concentration.
5
Incorporate the measured peptide stock into the aqueous phase during the formulation cool-down stage at temperatures strictly below 40°C.
6
Homogenize gently and store the finished solution in an airtight container away from light and extreme temperature.

Supplies Needed

Peptide Vial

Provides pure analytical-grade Biotinoyl Tripeptide-1 raw powder for formulation.

Insulin Syringes (U-100)

Used for fine micro-volume liquid measurement or transfer when precision micropipettes are unavailable.

Bacteriostatic Water

Serves as a preserved diluent for preparing laboratory stock solutions.

Alcohol Swabs

Disinfects laboratory glass surfaces, containers, and tools before weighing and blending.

Why researchers study it

Dermal follicular anchorage via collagen IV and laminin 5 synthesis

Hair-bulb keratinocyte cellular proliferation and viability assays

Ex vivo hair shaft elongation comparable to positive controls

Eyelash and brow hair fiber diameter and retention assessment

These describe what is being studied, not proven benefits, approved uses, or promised results.

Overview

Biotinoyl Tripeptide-1 is a synthetic hybrid peptide formed by conjugating vitamin B7 (biotin) to the collagen-stimulating tripeptide GHK (glycyl-histidyl-lysyl). Primarily recognized as an active constituent in multi-ingredient cosmetic hair blends such as Procapil, this agent was engineered to combine the cellular signaling characteristics of matricryptic peptides with the lipid affinity of biotin to enhance target substantivity at the follicular unit. In laboratory and explant evaluations, research focuses on the compound's capacity to stimulate the synthesis of basement membrane adhesion proteins, particularly collagen IV and laminin-5. These structural macromolecules anchor the hair bulb into the dermal extracellular matrix, counteracting premature mechanical dislodgement. Investigative interest often examines its role alongside complementary botanicals or standard therapies in multi-target models of follicular vitality and hair shaft thickness. Formulation studies emphasize the distinction between pure active peptide mass and commercial delivery complexes. Because human clinical literature assesses multi-component blends rather than isolated single-agent Biotinoyl Tripeptide-1, scientific protocols prioritize accurate microgram-scale incorporation into topical aqueous vehicles to mirror validated ex vivo concentrations without exposing dermal tissue to supra-physiological levels.

References

1.Bikash, International Journal of Trichology, 2025 — Critical review of commercial topical hair actives and combination limitations
2.Khoso & Fahim, Journal of Ayub Medical College Abbottabad, 2024 — Trial evaluating adjuvant Procapil with platelet-rich plasma in androgenetic alopecia
3.Pavithra et al., Cureus, 2023 — Comparative trial assessing Procapil against redensyl and saw palmetto stacks
4.Merja et al., Journal of Cosmetic Dermatology, 2023 — Efficacy evaluation of multi-active serums incorporating Procapil
5.Dhurat et al., Journal of Cosmetic Dermatology, 2025 — Observational study of a Procapil-containing formulation as an add-on to minoxidil
6.Samadi et al., Journal of Cosmetic Dermatology, 2023 — Tolerability and efficacy assessment of caffeine and 3% Procapil solution