Ingredient review
Methyl Hydroxyphenylbutylaminobenzoate
INCI: Methyl Hydroxyphenylbutylaminobenzoate
A synthetic UVB filter that helps protect skin from sunburn and long-term sun damage, but may not be suitable for very sensitive skin.
In plain English
This ingredient is a man-made chemical that absorbs UVB rays from the sun, preventing them from penetrating your skin and causing sunburn or DNA damage. It's often combined with other filters to provide broad-spectrum protection. Think of it as a tiny sponge that soaks up harmful UV energy before it can harm your skin cells.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is useful, but some claims depend heavily on the formula.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Methyl Hydroxyphenylbutylaminobenzoate 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 Methyl Hydroxyphenylbutylaminobenzoate.
- 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 specifically designed to absorb UVB radiation (280-320 nm). It belongs to the class of aminobenzoate derivatives, which are common UV filters in sunscreens.
How it works
When applied to the skin, the molecule absorbs UVB photons and converts them into harmless heat energy, which is then released. This prevents the UV radiation from reaching deeper skin layers and causing sunburn, premature aging, or cellular damage.
Pros
Effective UVB blocker
Absorbs UVB rays efficiently, reducing the risk of sunburn and long-term skin damage.
Lightweight feel
Unlike some mineral filters, it blends into the skin without leaving a white cast, making it ideal for daily wear.
Cons and cautions
Limited UVA protection
On its own, it does not protect against UVA rays, which contribute to aging and deeper skin damage. Must be paired with other filters.
Potential irritation
A small percentage of people may experience stinging or redness, especially those with very sensitive or reactive skin.
Best for
- People looking for reliable UVB protection in a chemical sunscreen
- Those who prefer lightweight, non-whitening sunscreens
Use caution if
- Individuals with known allergy or sensitivity to aminobenzoate compounds
- Those seeking purely mineral (physical) sun protection
Usage tips
Safety summary
Generally considered safe for topical use in sunscreens at concentrations up to 5%. Mild irritation is possible in sensitive individuals. Long-term safety data is moderate, with no major concerns reported in regulatory reviews.
Research notes
Studies confirm its efficacy as a UVB absorber. Research on systemic absorption and environmental impact is limited compared to more common filters like oxybenzone. Regulatory bodies in the EU and Asia have approved its use based on available safety data.
Common label clues
- Typical concentration
- 1-5% in sunscreen formulations
- Regulatory status
- Approved as a UV filter in the EU and many other regions, but not yet listed in the US FDA's approved sunscreen active ingredients. Always check local regulations.
- Common uses
- Sunscreens, Daily moisturizers with SPF, Broad-spectrum sun protection products
- Environmental note
- Some synthetic UV filters have raised concerns about coral reef safety. While this specific compound is less studied, choosing reef-safe labels or mineral sunscreens may be preferable for ocean-friendly choices.
Good to know
- This ingredient is often listed under the trade name 'Uvinul A Plus' in some formulations, but that is a different UV filter—check the INCI carefully.
- It is approved for use in sunscreens in many countries, including the EU and Asia, but not currently in the US FDA's monograph.
Common questions
What is Methyl Hydroxyphenylbutylaminobenzoate in beauty products?
This ingredient is a man-made chemical that absorbs UVB rays from the sun, preventing them from penetrating your skin and causing sunburn or DNA damage. It's often combined with other filters to provide broad-spectrum protection. Think of it as a tiny sponge that soaks up harmful UV energy before it can harm your skin cells.
What does Methyl Hydroxyphenylbutylaminobenzoate do in a beauty product?
When applied to the skin, the molecule absorbs UVB photons and converts them into harmless heat energy, which is then released. This prevents the UV radiation from reaching deeper skin layers and causing sunburn, premature aging, or cellular damage.
Is Methyl Hydroxyphenylbutylaminobenzoate safe for most people?
Generally considered safe for topical use in sunscreens at concentrations up to 5%. Mild irritation is possible in sensitive individuals. Long-term safety data is moderate, with no major concerns reported in regulatory reviews.
Who should be careful with Methyl Hydroxyphenylbutylaminobenzoate?
Individuals with known allergy or sensitivity to aminobenzoate compounds Those seeking purely mineral (physical) sun protection
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.