Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (MBBT)

INCI: METHYLENE BIS-BENZOTRIAZOLYL TETRAMETHYLBUTYLPHENOL

Function
UV filter, light stabilizer
Safety Rating
EXCELLENT

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
EU Max Conc. 10%
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Not approved as a UV filter under the FDA OTC sunscreen monograph; may appear in non-sunscreen cosmetics at supplier risk

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
negligible
Sensitization
none

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Permitted in EU cosmetics at up to 10%; nano form requires separate SCCS evaluation; not FDA-approved as active sunscreen ingredient in US but may be used in non-sunscreen cosmetics.

โš ๏ธ
Concern Level: Low

Frequently Asked Questions

Is Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (MBBT) safe in cosmetics?

Permitted in EU cosmetics at up to 10%; nano form requires separate SCCS evaluation; not FDA-approved as active sunscreen ingredient in US but may be used in non-sunscreen cosmetics. The EU classifies Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (MBBT) as "permitted". Safety rating: EXCELLENT.

Is Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (MBBT) allowed in the EU?

Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (MBBT) EU regulatory status: permitted. Maximum allowed concentration: 10%. This is based on EU Regulation 1223/2009 and its amendments.

What does Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (MBBT) do in cosmetics?

Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (MBBT) functions as: UV filter, light stabilizer. It is classified as a cosmetic ingredient in our database.

What is the Margin of Safety for Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (MBBT)?

adequate The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

๐Ÿ“ฑ

Is Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (MBBT) in Your Products?

Scan any product label with Piro โ€” our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.

Try Piro Free โ†’

Analyze Your Full Ingredient List

Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (MBBT) in your formulation.