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Organic UV filter (sunscreen)

2,2'-Methylene bis(6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol) / Bisoctrizole

CAS 103597-45-1 Updated
82

Safety score · 0–100

Good

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

About

Bisoctrizole (Tinosorb M) is an EU-approved broad-spectrum sunscreen filter. Large particulate molecule that stays on skin, providing photostable UVA and UVB protection.

Skin benefits

  • Broad-spectrum UVA/UVB sunscreen filter approved in EU Annex VI
  • Photostable and does not penetrate skin to a significant extent
  • Particulate organic filter with low irritation
  • Effective at protecting against photoaging and skin cancer risk

Known concerns

  • Eye irritation possible if spray products are misapplied
  • Aquatic toxicity assessments ongoing for some benzotriazole filters

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.