Science
Mechanism of Action
This peptide functions as a biomimetic of thymopoietin, a thymus-derived hormone, counteracting its natural decrease with age. It strategically enhances keratinocyte activity, leading to increased production of vital structural proteins such as Type I collagen and elastin. By upregulating genes associated with focal adhesions, it strengthens cellular cohesion and the crucial connection between cells and the extracellular matrix. Furthermore, it inhibits collagen degradation by interfering with metalloproteinase enzymes. Tetrapeptide-60 also supports the skin's immune response, aids in epidermal regeneration, reinforces the skin barrier against environmental stressors, and minimizes transepidermal water loss through increased keratinocyte proliferation. Preliminary data suggests it may also possess antioxidant properties and contribute to the reduction of hyperpigmentation by moderating tyrosinase activity, alongside positively influencing microcirculation.
Research
Clinical Evidence
High confidence0.005%
Transparency
Dusting Analysis
Given its proven efficacy at very low concentrations, starting from 0.002% for recommended cosmetic use and even lower in some in-vitro studies (0.00005%), Tetrapeptide-60 presents a risk of being 'dusted.' Formulations using concentrations below 0.002%, particularly below 0.001%, may not deliver substantial clinical benefits despite being listed as an active ingredient.
The Formula
Formulation
Stability
Tetrapeptide-60 is water-soluble and can withstand heating up to 60°C when in solution. For optimal stability, it should be integrated into cosmetic formulations during the final manufacturing stage, ensuring temperatures are maintained below 45°C. Peptide bonds are susceptible to hydrolysis, and its tyrosine residue can undergo oxidation under specific conditions, which may compromise its reactivity and overall stability.
Synergies
- Serilesine (for enhanced age degradation repair)
Safety
Safety Profile
Generally recognized as safe for topical cosmetic application and well-tolerated across various skin types, with no serious adverse effects reported in clinical trials. However, as with any active ingredient, individual sensitivities may lead to allergic reactions or irritation, necessitating a preliminary patch test. Specific safety data for topical use during pregnancy and breastfeeding is currently insufficient, and professional medical advice is recommended for these demographics.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Tetrapeptide-60 (Acetyl Tetrapeptide-2) is a valuable biomimetic peptide that significantly contributes to skin firmness, elasticity, and overall regeneration by boosting essential structural proteins and enhancing cellular vitality, making it highly beneficial for age-defying formulations.
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