METHYLENE BIS-BENZOTRIAZOLYL TETRAMETHYLBUTYLPHENOL
Ultraviolet Light Absorber; UV FILTER
Also listed as
2,2'-METHYLENEBIS [4- (1,1,3,3-TETRAMETHYLBUTYL) -6- (2H-BENZOTRIAZOL-2-YL) PHENOL] ; MBBT; TINOSORB M; BISOCTRIZOLER; TINOSORB M
Given the incomplete information made available by companies and the government, EWG provides additional information on personal care product ingredients from the published scientific literature. The chart below indicates that research studies have found that exposure to this ingredient -- not the products containing it -- caused the indicated health effect(s) in the studies reviewed by Skin Deep researchers. Actual health risks, if any, will vary based on the level of exposure to the ingredient and individual susceptibility -- information not available in Skin Deep.
| This ingredient: | |
 | Cancer |
| Developmental/reproductive toxicity |
| Violations, restrictions & warnings |
 | Allergies/immunotoxicity |
| Contamination concerns |
| Lesser or emerging concerns for this ingredient: Ecotoxicology, Data gaps |
|
See products containing METHYLENE BIS-BENZOTRIAZOLYL TETRAMETHYLBUTYLPHENOL | |
About METHYLENE BIS-BENZOTRIAZOLYL TETRAMETHYLBUTYLPHENOL: Not an approved active ingredient in the U.S., Tinosorb M may still be found in some cosmetic products. Few studies exist on this chemical. It is photostable and does not absorb through the skin.
ingredient UV blocking strength
| common sunscreen concentrations |
UV blocking strength |
||||||||||||||||||||||||||||||||||||
2.5% |
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10.0% |
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METHYLENE BIS-BENZOTRIAZOLYL TETRAMETHYLBUTYLPHENOL has reported used in the following product types: sunscreen: moisturizer (2); facial moisturizer/treatment (2); anti-aging (1); sunscreen: SPF 15-30 (1)
Allergies/immunotoxicity
| type of concern | product conditions | reference |
| Associated with immunotoxicity | Gonzalez-Perez R, Trebol I, Garcia-Rio I, Arregui MA, Soloeta R, 2007 |
Ecotoxicology
| type of concern | product conditions | reference |
| Wildlife and environmental toxicity | European Union - Classification & Labelling |
Data gaps
| type of concern | product conditions | reference |
| Not assessed for safety in cosmetics by industry panel | ||
| 8 studies on toxicity in PubMed see search results -> | PubMed |
Government, industry, academic studies and classifications
| government/industry list/academic study | appears on list as | classification(s) |
| European Union - Classification & Labelling | 2,2'-METHYLENEBIS(6-(2H-BENZOTRIAZOL-2-YL)-4-(1,1,3,3-TETRAMETHYLBUTYL)PHENOL) | •May cause long-term adverse effects in the aquatic environment |
| Gonzalez-Perez R, Trebol I, Garcia-Rio I, Arregui MA, Soloeta R, 2007 | METHYLENE-BIS-BENZOTRIAZOLYL TETRAMETHYLBUTYLPHENOL | Tinosorb M can cause allergic contact dermatitis in sensitive individuals |
references
| government/industry list/academic study | reference |
| European Union - Classification & Labelling | CPS&Q (Consumer Products Safety & Quality) formely known as ECB (European Chemicals Bureau). 2008. Classification and Labelling: Chemicals: Annex I of Directive 67/548/EEC through the 31st ATP. |
| Open scientific literature | Gonzalez-Perez R, Trebol I, Garcia-Rio I, Arregui MA, Soloeta R. 2007. Allergic contact dermatitis from methylene-bis-benzotriazolyl tetramethylbutylphenol (Tinosorb M). Contact dermatitis 56(2): 121. |
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