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HEXAPEPTIDE-51.

Valuable / SKIN CONDITIONING

HEXAPEPTIDE-51 is a sophisticated synthetic peptide engineered to fortify the skin's natural defense and repair mechanisms. It actively combats cellular damage from environmental stressors, notably UV radiation, and works to restore youthful vitality by reversing cellular senescence.

Skin Conditioning Anti-aging Antioxidant UV Protectant

Science

This peptide operates by mimicking the crucial FOXO3a transcription factor, which plays a central role in the skin's DNA damage response. By doing so, it significantly enhances intrinsic DNA repair, safeguarding genomic stability and minimizing replication errors that contribute to visible aging. It also strategically modulates fibroblast activity, essential for promoting collagen synthesis and supporting dermal repair, culminating in noticeable anti-wrinkle and skin-firming effects, and bolstering long-term skin resilience against various stressors.


Research

High confidence
Effective range 0.05–10%
Optimal

3%

Key findings

  1. 01 Formulations containing 3%-10% Hexapeptide-51 in serums demonstrated optimal anti-aging outcomes without inducing irritation.
  2. 02 An active peptide concentration of 0.05% (within a 2% solution in final formulation) notably reduced UV-mediated DNA damage by 16.6% over 24 hours and effectively reverted cellular senescence.
  3. 03 In human epidermal cells, UV-induced genetic damage decreased by 13.7% after 6 hours. Additionally, it significantly boosted the viability of human dermal fibroblasts exposed to irradiation by 35.1% compared to untreated irradiated cells, indicating strong protective properties.

Transparency

Not commonly dusted
Min. effective
0.05%
Red flag below
0.05%

Effective concentrations for Hexapeptide-51 are clearly established: 0.05% for active peptide in DNA repair, and 3-10% in final formulations for optimal anti-aging. Products failing to meet these thresholds for claimed benefits would be considered underdosed, indicating potential 'dusting.'


The Formula

Solubility
Water
Optimal pH 4 – 7
0 7 14

Stability

Stable in dry form at room temperature within a pH range of 4-7 for at least 12 months. Once integrated into aqueous or hydroalcoholic solutions, optimal efficacy is maintained for 4-6 weeks; for longer storage, freezing of aliquots is recommended. It requires storage in a sealed container, shielded from light, heat, and humidity.


Safety

CIR Status
Not reviewed
Max tested
10%
Sensitization risk Moderate

Generally considered safe for topical application at concentrations up to 10%. While infrequent, potential side effects may include localized skin irritation, redness, itching, or allergic reactions. Patch testing is strongly advised, particularly when formulating for individuals with sensitive skin.


Your Skin

Yes Normal
Yes Dry
Yes Oily
No Sensitive
Irritancy Unknown
Comedogenicity Low

Our Assessment

Valuable

HEXAPEPTIDE-51 is a valuable ingredient for advanced skincare, offering significant benefits in DNA repair, cellular protection, and anti-aging through its unique mechanism and clinically supported efficacy.


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