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Ingredient directory

Biotinoyl Tripeptide-1

A high-performance signal peptide that bridges the gap between hair care and precision skincare by reinforcing follicular architecture. It is specifically engineered to target the root causes of follicle miniaturization and premature shedding while promoting healthy cellular metabolism.

Directory entry · Individual source review pending

This profile is awaiting an individual source review. Treat its ratings, dose estimates and compatibility labels as provisional; they are not medical advice or proof of a finished product’s effects.

follicle fortification hair conditioning skin soothing keratinocyte stimulation

Science

Mechanism of Action

This peptide acts as a biological messenger, stimulating the synthesis of essential structural proteins like Laminin-5 and Collagen IV within the dermal papilla to secure hair anchorage. It further protects follicle health by inhibiting 5-alpha reductase to lower DHT levels and modulating Ki-67 expression to accelerate the proliferation of keratinocytes.

Research

Clinical Evidence

High confidence
Effective range 0.5–3%
Optimal

2.5%

Key findings

  1. 01 A 30-day clinical trial at 2.0% concentration demonstrated a 17% increase in eyelash length and a 19% improvement in thickness.
  2. 02 A 4-month hair density study at 3.0% concentration showed a 56.5% increase in hair density and significantly enhanced anchorage.
  3. 03 In vitro testing confirmed cell proliferation rates of up to 148.24%, showing efficacy comparable to traditional pharmaceutical growth stimulants.

Transparency

Dusting Analysis

Commonly dusted
Min. effective
0.5%
Red flag below
0.1%

Due to its high cost, Biotinoyl Tripeptide-1 is frequently 'dusted' in mass-market lash and hair serums at sub-therapeutic levels. While pure peptide concentrations are naturally low, the functional complex must be used at 2-3% to replicate the results seen in clinical studies.

The Formula

Formulation

Solubility
Water
Optimal pH 5.5 – 7
0 7 14

Stability

Thermolabile; must be incorporated into the aqueous phase during the cooling stage at temperatures below 40°C. Requires protection from light and heat to maintain peptide integrity.

Synergies

  • Panthenol
  • Apigenin
  • Oleanolic Acid

Conflicts

  • Strong acids
  • Strong alkalis
  • Strong oxidizing agents
  • Strong reducing agents

Safety

Safety Profile

CIR Status
Safe as used
Max tested
3%
Pregnancy
Safe
Sensitization risk Low

Reviewed and confirmed safe by the CIR Expert Panel. It is well-tolerated even in sensitive areas like the lash line and scalp.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Valuable

An essential peptide for follicle longevity and structural integrity when used at clinically validated concentrations.

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