Science
Mechanism of Action
Lactobionic Acid gently exfoliates the skin by weakening the bonds between dead skin cells on the surface, facilitating their removal and promoting cell renewal for a smoother complexion. As a potent humectant, it attracts and binds moisture from the environment, forming a hydrating film on the skin to significantly reduce transepidermal water loss. Furthermore, it functions as an antioxidant by chelating iron, which neutralizes damaging free radicals and protects the skin from oxidative stress and premature aging. The ingredient also contributes to strengthening the skin's natural barrier, offers anti-inflammatory benefits to calm redness, and can stimulate collagen production while inhibiting MMP-9 enzymes, supporting anti-aging effects.
Research
Clinical Evidence
High confidence8%
Key findings
- 01 At 1%, in-vitro studies demonstrated a 25% increase in skin hydration and a 30% improvement in skin elasticity.
- 02 A 6% concentration exhibited superior skin performance with significantly less irritation and barrier disruption compared to 6% glycolic acid.
- 03 An 8% concentration, used for 12 weeks, led to enhanced skin texture, reduced laxity, improved firmness (particularly around the eyes and cheeks), increased mucopolysaccharides, and an average 6.9% increase in skin thickness, alongside decreased MMP-9 staining, indicating notable anti-aging benefits.
- 04 A 10% concentration in an emulsion effectively lowered skin surface pH without inducing irritation or compromising the skin barrier.
- 05 Higher concentrations, such as 20%, were shown to boost facial skin hydration, and 40% (at pH 1.9) in a series of 5 exfoliating treatments improved elasticizing effects in older women.
Transparency
Dusting Analysis
Lactobionic Acid is a highly effective, multi-functional ingredient with documented benefits across various concentrations and skin concerns, including exfoliation, hydration, and anti-aging. Its gentle nature and low irritation potential make it a valuable active rather than one prone to 'dusting' at low, ineffective levels.
The Formula
Formulation
Stability
This ingredient exhibits stability across a broad pH spectrum. Optimal stability for injectable solutions is noted between pH 5 and 6.5. As a highly hygroscopic substance, Lactobionic Acid can influence the colloidal structure of emulsions, aiding in the formation of lamellar structures.
Conflicts
- High temperatures
- Sparks
- Open flames
- Moisture
- Strong oxidizing agents
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has determined Lactobionic Acid to be safe for use in current cosmetic practices. While a precise maximum concentration for Lactobionic Acid itself isn't definitively specified by CIR, related Alpha Hydroxy Acids (AHAs) are typically considered safe up to 10% in leave-on products with a pH of ≥3.5, and up to 30% in professional salon treatments for brief, intermittent use at a pH of ≥3.0. Lactobionic acid is also recognized by the FDA as an excipient in pharmaceutical products, indicating a good safety profile.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Lactobionic Acid is a valuable polyhydroxy acid, providing gentle exfoliation, significant hydration, and antioxidant protection, making it highly beneficial across all skin types, including sensitive.
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References
Sources