Overview
Topical peptide complex marketed for hair anchoring.
- Synthetic peptide manufactured to pharmaceutical or research-grade purity
- Subcutaneous injection, sublingual, or oral preparation depending on bioavailability
- Compounded by a licensed pharmacy for clinical use
- Subcutaneous injection
- Oral or sublingual lozenge
- Nasal spray
- Compounded topical
Mechanism of action
Stimulates anagen markers and follicle anchoring proteins (laminin, integrin).
- · Stimulates anagen markers
- · follicle anchoring proteins (laminin, integrin)
Effects on the body
Organ system effects
Biotinyl Tripeptide-1 (Procapil) supports collagen synthesis, antioxidant defense, or barrier function in skin and integumentary tissues.
Evidence-based benefits
Improves hair density in pilot trials
Limited evidencePotential side effects
- · Scalp irritation
Drug interactions
Safety & non-supplemental interactions
Educational summary — always confirm with your clinician or pharmacist before starting, stopping, or combining with prescription therapy.
- ·Pregnant or breastfeeding (insufficient safety data)
- ·Children under 18 (unless directed by a clinician)
- ·Most research peptides are not FDA-approved for human use outside investigational protocols.
Supplement interactions
- Collagen peptidesProvides amino acid substrate for connective tissue synthesis.
- Vitamin CRequired cofactor for collagen hydroxylation.
No specific avoidances listed.
Dosing & bioavailability
Where to buy
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Third-party testedIndependently verified Biotinyl Tripeptide-1 (Procapil) — look for USP, NSF, or Informed Sport seals on the label for purity and dose accuracy.Biotinyl Tripeptide-1 (Procapil) third party tested NSF
CapsulesPre-measured Biotinyl Tripeptide-1 (Procapil) capsules — easiest for travel and consistent daily dosing without scoops or scales.Biotinyl Tripeptide-1 (Procapil) capsules
PowderBulk unflavored Biotinyl Tripeptide-1 (Procapil) powder — best cost-per-gram and flexible dosing for stacking or mixing into drinks.Biotinyl Tripeptide-1 (Procapil) powder unflavored
Best sellersMost-purchased Biotinyl Tripeptide-1 (Procapil) products on Amazon — a quick way to see what's reviewed widely before you commit.Biotinyl Tripeptide-1 (Procapil) best sellerScientific evidence8Show studiesHide studies
Procapil for androgenetic alopecia
Sederma Inc.
Open-label trial in 30 men.
Increased hair density and reduced shedding after 4 months.
PubMed: Biotinyl Tripeptide-1 (Procapil) — Improves hair density in pilot trials
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