Science
Mechanism of Action
Serum Albumin functions primarily as a film former, creating a continuous, protective layer on the skin's surface. This film contributes to skin conditioning and acts as a humectant, effectively attracting and retaining moisture. It provides an astringent effect, leading to a smoother-looking complexion and a temporary reduction in the appearance of fine lines and wrinkles, potentially through skin contraction or by altering the skin's refractive index. The protein can be absorbed into skin tissues, aiding in structural replenishment and offering cell protection via non-specific adsorption to cell membranes and endocytosis. Furthermore, human serum albumin, particularly when combined with selenium nanoparticles, demonstrates protective benefits against photoaging by enhancing the survival and proliferation of UVB-irradiated keratinocytes and regulating genes involved in collagen metabolism, inflammation, oxidative stress, and cellular senescence.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 Optimized for preserving viability and adherence of human keratinocytes for up to 48 hours at 4°C, specifically in cell transportation for regenerative applications.
- 02 Enhanced the viability of gingival-derived oral keratinocytes when maintained at 4°C.
- 03 Effective range in liquid soap formulations for general cleansing, conditioning, or other beneficial cosmetic and dermatological purposes for skin or hair.
- 04 Effective range when dissolved in a glycerin solution for a broad spectrum of cosmetic and dermatological applications for skin or hair.
- 05 A specific concentration, when formulated in a 15% glycerin solution, was claimed to be hypoallergenic for skin or hair treatment.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Serum albumin is readily soluble in water. However, it is highly sensitive to heat, coagulating rapidly at temperatures of 50°C or above, with aggregation also occurring at slower rates at lower temperatures. As an aqueous protein solution, it is susceptible to bacterial and fungal degradation, necessitating the inclusion of appropriate preservatives. Its minimum solubility and stability typically occur around its isoelectric point (pI), which for bovine serum albumin ranges from approximately pH 4.7 to 5.3.
Synergies
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Conflicts
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Safety
Safety Profile
No specific Cosmetic Ingredient Review (CIR) or Scientific Committee on Consumer Safety (SCCS) assessment is available for Serum Albumin. Historically, the U.S. FDA challenged products containing Bovine Serum Albumin (BSA) on efficacy claims, though the ingredient was ultimately permitted in cosmetics. Formulations utilizing recombinant human serum albumin are often claimed to be hypoallergenic, suggesting a potentially lower risk of allergic reactions.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Serum Albumin is a valuable ingredient, offering a range of skin benefits including hydration, temporary firming, and cellular protection, which can significantly enhance overall skin condition and contribute to anti-aging strategies.
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