Science
Mechanism of Action
This ingredient operates through a structural synergy: the benzylidenecamphor component absorbs UVB radiation at the surface level, while the sulfonamide-linked hydrolyzed collagen forms a substantive, humectant barrier. This creates a protective 'second skin' that simultaneously prevents transepidermal water loss and mitigates UV-induced degradation of the epidermal matrix.
Research
Clinical Evidence
Medium confidence5%
Key findings
- 01 Clinical evaluation demonstrates that concentrations between 1.0% and 10.0% provide significant skin-protecting benefits and improved moisture retention via film-forming properties.
- 02 Hair fiber analysis indicates that 0.1% to 5.0% improves conditioning and protects against environmental protein degradation.
Transparency
Dusting Analysis
Often included at sub-therapeutic levels (<1%) for label claims regarding collagen or UV protection. In precision skincare, it should be utilized at 1% or higher to ensure the film-forming and secondary UV-absorbing benefits are physiologically relevant.
The Formula
Formulation
Stability
Heat-sensitive protein derivative; must be incorporated into the water phase or post-emulsification at temperatures below 40°C to prevent denaturation.
Synergies
- Physical UV filters
- Glycerin
- Hyaluronic Acid
Conflicts
- Strong oxidizing agents
- Highly acidic formulations (pH < 4.0)
- Proteolytic enzymes
Safety
Safety Profile
Unlike its parent molecule 3-Benzylidene Camphor, this sulfonamide derivative is a larger molecule with negligible systemic penetration. It is not an approved primary sunscreen filter and must be used as a secondary booster.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An excellent secondary active for daytime formulations that bridges the gap between surface UV protection and deep hydration.
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References
Sources