Sunscreen Ingredient & UV Filter Analyzer
Objective toxicological and photostability evaluation based on published European Commission SCCS safety opinions, US FDA Maximum Usage Monographs, and peer-reviewed dermatological data.
Paste INCI Ingredient List or Select a Benchmark Formula:
Enter comma-separated active and inactive ingredients from any commercial sunscreen packaging label.
| Ingredient (INCI) | Category | UV Coverage | Toxicological Status & EU/FDA Thresholds |
|---|
🔬 Scientific Evaluation Methodology & SCCS Toxicology Citations
Objective assessment standards conforming to EU Regulation (EC) No 1223/2009 and FDA OTC Sunscreen Monographs
1. Evidence-Based Toxicology Standards
- EU SCCS Scientific Opinions: Thresholds reflect European Scientific Committee on Consumer Safety evaluations (e.g. SCCS/1625/20 on Homosalate capped at 7.34%, SCCS/1630/21 on Octocrylene capped at 10%).
- FDA GRASE Framework: Incorporates FDA Maximal Usage Trials (MUsT) testing absorption without declaring ingredients hazardous.
- Margin of Safety (MoS): Calculated against toxicological No Observed Adverse Effect Levels (NOAEL), requiring MoS ≥ 100 for public safety.
2. Photostability & Filter Kinetics
- Avobenzone Stabilization: Pure Avobenzone degrades by 50–70% within 60 minutes under solar flux unless stabilized with Octocrylene, Bemotrizinol, or Bisoctrizole.
- Next-Gen Broad Spectrum: Filters like Tinosorb S, Tinosorb M, and Uvinul A Plus maintain over 95% UV filtration after 2 hours of direct exposure.
- Inorganic Dispersion: Non-nano Zinc Oxide (>100nm) delivers uniform broad-spectrum physical reflectance across 290–400nm.
📚 Primary Regulatory & Peer-Reviewed Literature
This ingredient checking tool is published by PureSPF Publishing (71-75 Shelton Street, Covent Garden, London, WC2H 9JQ, United Kingdom) for educational and public health guidance. Cosmetic safety evaluation relies on published regulatory ceilings and toxicological dossiers. This utility does not diagnose contact allergies, skin conditions, or provide individualized dermatological advice. For persistent skin reactions or product patch testing, consult a board-certified dermatologist.
❓ Frequently Asked Questions
How does the PureSPF ingredient checker evaluate sunscreen formulations?
The engine scans INCI (International Nomenclature of Cosmetic Ingredients) names against published European Commission SCCS safety opinions, FDA Over-The-Counter Sunscreen Monographs, and Cosmetic Ingredient Review (CIR) toxicological data. It evaluates UV spectrum coverage, photostabilization pairings (such as Avobenzone with Octocrylene or Tinosorb S), and sensitization risks.
Does systemic bloodstream absorption mean chemical UV filters are harmful?
No. The US FDA's pilot MUsT studies observed that ingredients like Avobenzone and Oxybenzone absorb into plasma above initial laboratory reporting thresholds, but the FDA explicitly concluded this does not demonstrate clinical toxicity or endocrine disease in humans. The FDA and dermatologists strongly recommend continued sunscreen use.
Why are some chemical sunscreens irritating to sensitive eyes and skin?
Organic filters with low molecular weights (e.g., Avobenzone, Octocrylene, and Oxybenzone) are lipophilic and readily dissolve into the eye's lipid tear film, triggering transient stinging and conjunctival irritation. Physical mineral filters (Zinc Oxide, Titanium Dioxide) are insoluble and cannot dissolve into tear fluids.
What makes next-generation European and Asian UV filters superior?
Modern filters like Bemotrizinol (Tinosorb S), Bisoctrizole (Tinosorb M), and DHHB (Uvinul A Plus) possess large molecular weights (>500 Daltons), preventing systemic skin absorption while providing superior photostability without breaking down under sunlight.
How can I check if my sunscreen is reef-safe?
True reef-safe formulas exclude Oxybenzone (Benzophenone-3) and Octinoxate (Octyl Methoxycinnamate), which have been legislatively restricted in Hawaii, the US Virgin Islands, and Palau due to coral bleaching concerns under high concentrations. Non-nano mineral Zinc Oxide is widely considered the safest marine alternative.