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Methylene Bis-Benzotriazolyl Tetramethylbutylphenol

goodie
Also-called-like-this: Tinosorb M, Bisoctrizole
What-it-does: sunscreen

Details

The long name covers a nice sunscreen agent and quite a special one at that: It's a "hybrid" sunscreen meaning it's half-way between physical (the ones that, at least partly, reflect the sun) and chemical agents (that absorb the rays, which most sunscreens do).  It is a new generation UV filter and, just like its sister, Trinosorb S, it is not available in the US. 

It gives nice broad-spectrum coverage (280-400 nm) with peak protection at 305 nm and 360 nm and it is highly photostable. It can also help to stabilize other less stable sunscreens, like Octinoxate and is generally happy to work together with other UV-filters.

Its hybrid nature means that it is organic like the chemical agents, but it is neither water nor oil soluble and works as a suspension of micro fine particles. If the small particles scare you, we have good news: the safety profile of Tinosorb M is great. It is not absorbed into the skin and unlike some other chemical sunscreens, it does not show estrogenic activity. 

Show me some proof

  • Skin Pharmacol Appl Skin Physiol 2007;20:10–20, In vitro Percutaneous Absorption and in vivo Stratum Corneum Distribution of an Organic and a Mineral Sunscreen
  • Regulatory Toxicology and Pharmacology 34, 287–291 (2001), Lack of Binding to Isolated Estrogen or Androgen Receptors, and Inactivity in the Immature Rat Uterotrophic Assay, of the Ultraviolet Sunscreen Filters Tinosorb M-Active and Tinosorb S

Products with Methylene Bis-Benzotriazolyl Tetramethylbutylphenol

Eternal Secret Spf 50+ Facial Cream Avene High Protection Spf 50+ Emulsion Avene Sunsimed Avene Very High Protection Cleanance Spf50 Galderma Actinica Lotion Mecca Cosmetica To Save Face Spf 30 Mineral Gel Cream Stiefel Sunmax Sensitive Spf 30 Pa++ A-Derma Protect Ac - Spf 50+ A-Derma Protect Ad Cream Spf50+ A-Derma Protect Cream - Spf 50+ ACO Sun Face Cream Spf 50+ Angstrom Hydraxol 50+ Avene Cleanance Spf 30 Avene Fluid Spf 50+ Avene Spf 50+ Tinted Cream Avene Suncare Cream Spf 50 Avene Very High Protection Cleanance Spf50+ Avene Very High Protection Emulsion Spf 50+ Avene Very High Protection Fluid Spf50+ Bioderma Photoderm Spf 30 Spray Biodermal Biodermal Anti-Age Spf 50 Biodermal Biodermal Kids Sun Spray Spf 50 Calypso Calypso Once A Day Sun Protection Lotion With Spf 30 Calypso Calypso Once A Day Sun Protection Lotion With Spf 40 Ducray Melascreen Uv Light Cream Spf 50+ Libbs Filtrum Protetor Solar Ultra Seco Fps 30 Creme Gel Hidratante Noreva Exfoliac Spf50+ Matifying Suncare Fluid Noreva Noresun Gradual Uv Cream Spf 50+ Oasis Beauty Oasis Sun Spf 40 Dry-Feel Sport Sunscreen Skin Aqua Moisture Gel Spf30 Pa++ Ultrasun Anti-Age Spf 50+ Uriage Bariesun Mat Fluid Spf 50+ Avene B-Protect Spf 50+ Avene Fragrance-Free Cream 50+ Avene High Protection Lotion Spf 50+ Avene Sport Fluid Spf50+ (EU) Avene Very High Protection Anti Aging Suncare Spf 50 Bioderma Photoderm Akn Mat Spf 30 Bioderma Photoderm Kid Spf 50+ Bioderma Photoderm Leb Spf 30 Bioderma Photoderm M Spf 50 Bioderma Photoderm Max Aquafluide Light Tint Spf 50+ Bioderma Photoderm Max Aquafluide Spf 50+ Bioderma Photoderm Max Aquafluide Spf 50+ Bioderma Photoderm Max Aquafluide Teinte Claire Spf 50+ Bioderma Photoderm Max Cream Spf50+ Bioderma Photoderm Max Cremă Spf 50+ Bioderma Photoderm Max Milk Spf 50+ Bioderma Photoderm Max Spf 50+ Spray Bioderma Photoderm Spot Spf 50+