Ingredient review
Aluminum Hydroxy Bis-Methylene Bis-Di-T-Butylphenyl Phosphate
INCI: ALUMINUM HYDROXY BIS-METHYLENE BIS-DI-T-BUTYLPHENYL PHOSPHATE
A synthetic UV filter that provides broad-spectrum sun protection with a low irritation profile, commonly used in sunscreens and daily SPF products.
In plain English
This ingredient is a man-made compound that acts like a shield against the sun's harmful rays. It absorbs UV light and turns it into heat, which is then released from the skin, preventing the rays from causing damage. It's often combined with other sun filters to give you broad-spectrum protection.
Quick decision guide
Useful, but context matters
Aluminum Hydroxy Bis-Methylene Bis-Di-T-Butylphenyl Phosphate is generally a lower-concern ingredient when the full formula suits your skin.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging Aluminum Hydroxy Bis-Methylene Bis-Di-T-Butylphenyl Phosphate.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
A synthetic organic compound designed to absorb UV radiation, specifically in the UVB and some UVA range. It is a type of benzophenone derivative, chemically modified to be more photostable and less likely to irritate skin.
How it works
When applied to the skin, it absorbs high-energy UV photons and converts them into lower-energy heat, which is then dissipated. This prevents the UV energy from reaching deeper skin layers and causing sunburn, premature aging, or DNA damage. It also has some reflective properties that scatter a portion of UV rays.
Pros
Effective UV Protection
Provides reliable protection against UVB rays and some UVA, helping to prevent sunburn and reduce the risk of skin cancer.
Low Irritation Potential
Generally well-tolerated by most skin types, including sensitive skin, with a lower likelihood of causing stinging or redness compared to some other chemical filters.
Cons and cautions
Not Full UVA Coverage
On its own, it does not provide complete protection against UVA rays, which are linked to premature aging. It is best used in combination with other UVA filters.
Synthetic Origin
As a man-made ingredient, it may not be preferred by those who favor natural or mineral-based sunscreens for environmental or personal reasons.
Best for
- Anyone looking for effective sun protection in a daily sunscreen
- People with sensitive skin who tolerate chemical sunscreens well
Use caution if
- Those with a known allergy or sensitivity to benzophenone derivatives
- Individuals seeking a purely mineral or natural sunscreen
Usage tips
Safety summary
Considered safe for use in cosmetics at typical concentrations. It has a low irritation profile and is not known to be a significant sensitizer. Long-term safety data is consistent with other approved UV filters.
Research notes
Research supports its effectiveness as a UV filter with good photostability. Studies on human skin show minimal absorption and low potential for irritation. More research is needed on its environmental fate.
Common label clues
- Typical concentration
- 1% to 5%
- Regulatory status
- Approved as a UV filter in the European Union and many other countries. Not currently approved by the U.S. FDA for use in sunscreens, though it is used in some cosmetic products.
- Common uses
- Sunscreens, Daily moisturizers with SPF, BB creams
- Environmental note
- Some studies have detected similar UV filters in aquatic environments, raising concerns about potential ecological impact. However, data specific to this compound is limited.
Good to know
- This ingredient is often listed under the trade name Tinosorb M in some formulations.
- It is approved for use in sunscreens in many countries, including the EU and Asia, but is not yet approved by the FDA in the United States.
Common questions
What is Aluminum Hydroxy Bis-Methylene Bis-Di-T-Butylphenyl Phosphate in beauty products?
This ingredient is a man-made compound that acts like a shield against the sun's harmful rays. It absorbs UV light and turns it into heat, which is then released from the skin, preventing the rays from causing damage. It's often combined with other sun filters to give you broad-spectrum protection.
What does Aluminum Hydroxy Bis-Methylene Bis-Di-T-Butylphenyl Phosphate do in a beauty product?
When applied to the skin, it absorbs high-energy UV photons and converts them into lower-energy heat, which is then dissipated. This prevents the UV energy from reaching deeper skin layers and causing sunburn, premature aging, or DNA damage. It also has some reflective properties that scatter a portion of UV rays.
Is Aluminum Hydroxy Bis-Methylene Bis-Di-T-Butylphenyl Phosphate safe for most people?
Considered safe for use in cosmetics at typical concentrations. It has a low irritation profile and is not known to be a significant sensitizer. Long-term safety data is consistent with other approved UV filters.
Who should be careful with Aluminum Hydroxy Bis-Methylene Bis-Di-T-Butylphenyl Phosphate?
Those with a known allergy or sensitivity to benzophenone derivatives Individuals seeking a purely mineral or natural sunscreen
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.