Science
Mechanism of Action
This peptide primarily operates by suppressing the production of interleukin-6 (IL-6), a prominent pro-inflammatory cytokine known to accelerate the degradation of collagen and other vital structural proteins, thereby contributing to skin aging. By inhibiting IL-6, Palmitoyl Tetrapeptide-7 safeguards the extracellular matrix, protecting skin's firmness and elasticity. Functioning as a cell-communicating ingredient, it signals fibroblasts and keratinocytes to stimulate tissue repair and remodeling, while also reducing inflammation-induced pigmentation.
Research
Clinical Evidence
High confidence3%
Key findings
- 01 In vitro studies demonstrate a dose-dependent reduction in interleukin production, achieving up to a 40% decrease and an impressive 86% reduction in UV-exposed cells, underscoring its potent anti-inflammatory properties.
- 02 A cytometric study revealed significant improvements in skin firmness (+19% on face, +40% on neck) and elasticity (+17% on face, +27% on neck) after one month of application at a minimal concentration of 0.0015% (15 ppm).
- 03 When formulated at 3% (in conjunction with palmitoyl oligopeptide) and applied twice daily for two months, participants experienced statistically significant reductions in deep wrinkles and skin roughness, coupled with improved skin elasticity and tone.
- 04 Early research on Matrixyl 3000 formulations, which include Palmitoyl Tetrapeptide-7, reported an average 18% reduction in wrinkle depth following two months of topical application.
Transparency
Dusting Analysis
No specific data regarding 'dusting' or a threshold for ineffective concentrations were found in the available research. Studies indicate measurable benefits even at very low concentrations.
The Formula
Formulation
Stability
Typically supplied as a liquid solution, Palmitoyl Tetrapeptide-7 should be incorporated into the water phase of formulations. For optimal stability, it is advisable to add it during the cool-down phase of an emulsion. Store in a tightly sealed container in a dry, dark, and refrigerated environment, ideally between 2 and 8°C (35.6 - 46.4°F).
Synergies
- Palmitoyl Tripeptide-1
- Palmitoyl Oligopeptide
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has concluded Palmitoyl Tetrapeptide-7 is safe for use in cosmetics. This assessment considers its generally low use concentrations and negative safety test data, indicating a low risk of irritation, sensitization, and overall non-toxicity.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Palmitoyl Tetrapeptide-7 is a valuable anti-aging and soothing peptide, clinically proven to reduce inflammation, enhance firmness and elasticity, and diminish wrinkles, making it suitable for all skin types with a low risk of irritation.
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