Science
Mechanism of Action
This ingredient, primarily comprising collagen peptides, functions as a powerful humectant and conditioning agent, enhancing skin's moisture retention. When absorbed (particularly orally), these peptides actively stimulate dermal fibroblasts to increase hyaluronic acid synthesis, which is crucial for deep hydration. It also promotes healthier collagen morphology, boosts dermis density, facilitates robust collagen fibril formation, and aids in cellular repair. Furthermore, fish skin hydrolysates deliver antioxidant defense, safeguarding skin against oxidative stress and photodamage.
Research
Clinical Evidence
High confidenceN/A
Key findings
- 01 Oral supplementation at 500 mg/day demonstrated significant improvements in dermis density (indicated by increased echogenicity), reduced wrinkles, enhanced skin texture, a notable moisturizing effect, and improved skin firmness and overall appearance. It was also effective in visibly reducing skin pores.
- 02 Oral intake of 1650 mg/day of collagen peptide showed beneficial effects on skin health, including significant improvements in skin desquamation, hydration, wrinkling, and elasticity, observed after 4 to 12 weeks of use.
- 03 Topical application of a serum containing hydrolyzed fish collagen, when used regularly for at least 2 weeks, enhanced facial skin moisture, reduced the appearance of pores and wrinkles, and significantly brightened the skin.
- 04 Further oral supplementation studies confirmed improvements in skin hydration, elasticity, reduced roughness, and the appearance of crow's feet.
Transparency
Dusting Analysis
The clinical research clearly indicates measurable skin benefits from both oral and topical applications, suggesting that the ingredient is typically included for its functional efficacy rather than as a 'dusting' claim. Specific studies highlight observable improvements across multiple skin parameters.
The Formula
Formulation
Stability
Hydrolyzed fish protein/collagen is inherently water-soluble. Formulated serums containing hydrolyzed fish collagen have demonstrated good stability at pH 7.7, even after freeze-thaw cycles and 6 months of room temperature storage. During industrial production, fish protein hydrolysates are typically neutralized to a pH range of 6.0 to 7.0 after acid hydrolysis. Mitigating lipid oxidation during processing is crucial to prevent undesirable odors, dark coloration, and the formation of oxidative by-products; this can be achieved by minimizing oxygen exposure or utilizing inert gases.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has affirmed Hydrolyzed Collagen, including fish-sourced varieties, as safe for use in cosmetic formulations, even after re-review. Human studies showed no irritation at concentrations up to 50% in water solution. It was also considered non-sensitizing in guinea pig studies at up to 2% and in human repeated insult patch tests (HRIPT) at 20% solution, confirming its mild profile and low irritancy potential.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Hydrolyzed Fish Extract is a valuable ingredient for comprehensive skin health, offering significant benefits in hydration, elasticity, and visible signs of aging, backed by robust clinical evidence and a favorable safety profile.
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