Ingredient review
Di-T-Butyl Hydroxybenzylidene Camphor
INCI: DI-T-BUTYL HYDROXYBENZYLIDENE CAMPHOR
A synthetic UV filter that protects skin from sun damage, but its use is limited by regional regulations and potential environmental concerns.
In plain English
This is a man-made ingredient added to sunscreens to help protect your skin from the sun's harmful UV rays. It works by absorbing UV light and converting it into less harmful heat. It's not as common as other UV filters like avobenzone or octinoxate, and its use is restricted in some countries due to safety and environmental reviews.
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
Di-T-Butyl Hydroxybenzylidene Camphor 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 Di-T-Butyl Hydroxybenzylidene Camphor.
- 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 derived from camphor, designed to absorb ultraviolet (UV) radiation, specifically UVB and some UVA rays.
How it works
When applied to the skin, this ingredient absorbs UV photons and releases the energy as heat, preventing the radiation from penetrating deeper into the skin and causing damage like sunburn or premature aging.
Pros
Effective UV Protection
Absorbs UVB and some UVA rays, helping to prevent sunburn and long-term skin damage when used in proper formulations.
Photostable
Generally stable under sunlight, meaning it doesn't break down quickly, so your sunscreen stays effective longer during sun exposure.
Cons and cautions
Limited Regulatory Approval
Not approved by the US FDA for use in sunscreens, so it's not found in American products. This limits availability for US consumers.
Environmental Concerns
Some studies suggest it may persist in the environment and potentially harm aquatic life, leading to restrictions in places like Hawaii and Palau.
Best for
- People looking for effective sun protection
- Those using sunscreens approved in regions like the EU or Asia
Use caution if
- Those seeking sunscreens approved by the US FDA (this ingredient is not currently approved there)
- Individuals concerned about environmental impact on marine ecosystems
Usage tips
Safety summary
Generally considered safe for topical use in approved concentrations, but its use is restricted in some regions due to environmental and regulatory reviews. No major human health risks have been identified when used as directed.
Research notes
Studies confirm its effectiveness as a UV filter. Environmental research indicates potential bioaccumulation and toxicity to aquatic organisms, prompting further investigation and regulatory action in some areas.
Common label clues
- Typical concentration
- Up to 2% in some regions (varies by regulation)
- Regulatory status
- Approved in the EU and some other countries at concentrations up to 2%, but not approved by the US FDA for use in sunscreens. Always check local regulations.
- Common uses
- Sunscreens, SPF products, Daily moisturizers with SPF
- Environmental note
- There is concern about its persistence in water and potential toxicity to marine life, leading to bans in some environmentally sensitive areas.
Good to know
- This ingredient is more common in European and Asian sunscreens than in American ones.
- It is often combined with other UV filters to provide broad-spectrum protection.
Common questions
What is Di-T-Butyl Hydroxybenzylidene Camphor in beauty products?
This is a man-made ingredient added to sunscreens to help protect your skin from the sun's harmful UV rays. It works by absorbing UV light and converting it into less harmful heat. It's not as common as other UV filters like avobenzone or octinoxate, and its use is restricted in some countries due to safety and environmental reviews.
What does Di-T-Butyl Hydroxybenzylidene Camphor do in a beauty product?
When applied to the skin, this ingredient absorbs UV photons and releases the energy as heat, preventing the radiation from penetrating deeper into the skin and causing damage like sunburn or premature aging.
Is Di-T-Butyl Hydroxybenzylidene Camphor safe for most people?
Generally considered safe for topical use in approved concentrations, but its use is restricted in some regions due to environmental and regulatory reviews. No major human health risks have been identified when used as directed.
Who should be careful with Di-T-Butyl Hydroxybenzylidene Camphor?
Those seeking sunscreens approved by the US FDA (this ingredient is not currently approved there) Individuals concerned about environmental impact on marine ecosystems
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.