Ingredient review
Benzophenone-2
INCI: BENZOPHENONE-2
Benzophenone-2 is a UV filter with potential endocrine-disrupting effects; many regions restrict its use in cosmetics.
In plain English
Benzophenone-2 is a synthetic chemical that absorbs ultraviolet (UV) light. It's added to sunscreens and other cosmetics to protect the product from breaking down in sunlight. However, it has raised concerns because it may interfere with hormone systems in the body. Because of these risks, it's banned or restricted in several countries, and many brands now avoid it in favor of safer alternatives.
Quick decision guide
Read the cautions before using
Benzophenone-2 can be useful, but watch for some irritation potential.
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 Benzophenone-2.
- 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
moderateCan bother some users, especially with frequent use, damaged skin, or strong companion ingredients.
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
Benzophenone-2 (BP-2) is a member of the benzophenone family of UV absorbers. It is a white to light yellow crystalline powder that absorbs UV-A and UV-B radiation. It is used not only in cosmetics but also in plastics, inks, and coatings to prevent UV damage.
How it works
In a cosmetic product, BP-2 absorbs UV light and converts it into heat, which is then released. This protects both the product (preventing color or fragrance changes) and the skin from UV exposure. However, because it can penetrate the skin, it may enter the bloodstream and potentially affect hormone function.
Pros
Effective UV absorber
BP-2 absorbs both UV-A and UV-B rays, helping to protect the product and skin from sun damage.
Stabilizes formulations
It prevents other ingredients from breaking down due to light exposure, extending product shelf life.
Cons and cautions
Endocrine disruption concerns
Studies suggest BP-2 may mimic or interfere with hormones like estrogen, raising safety flags for regular use.
Regulatory restrictions
BP-2 is banned in the EU and restricted in other regions due to safety concerns, limiting its availability in many markets.
Best for
- Those using products with strict UV protection requirements
- Formulators needing a light stabilizer for certain formulations
Use caution if
- Pregnant or nursing individuals
- Those with hormone-sensitive conditions
- Anyone seeking mineral-only sunscreens
Usage tips
Safety summary
Benzophenone-2 has moderate evidence of endocrine-disrupting effects in animal studies. It can be absorbed through the skin and may accumulate. Regulatory agencies in the EU and elsewhere have restricted its use. For most people, occasional low-level exposure is unlikely to cause harm, but regular use is not recommended.
Research notes
Research indicates BP-2 can act as an estrogen agonist in vitro and in animal models. Human studies are limited, but the potential for hormone disruption has led to regulatory action. More research is needed on long-term human exposure.
Common label clues
- Typical concentration
- Up to 6% in sunscreens (varies by region)
- Regulatory status
- Benzophenone-2 is banned in the European Union for use in cosmetics. In the United States, it is not specifically prohibited by the FDA but is rarely used due to safety concerns. Always check local regulations.
- Common uses
- Sunscreens, Cosmetics, Plastics
- Environmental note
- BP-2 can enter waterways through wash-off and has been detected in aquatic environments, where it may affect marine life, including coral reefs.
Good to know
- BP-2 is different from benzophenone-3 (oxybenzone), which is more common but also controversial.
- The EU Cosmetics Regulation prohibits BP-2 in cosmetic products due to potential health risks.
Common questions
What is Benzophenone-2 in beauty products?
Benzophenone-2 is a synthetic chemical that absorbs ultraviolet (UV) light. It's added to sunscreens and other cosmetics to protect the product from breaking down in sunlight. However, it has raised concerns because it may interfere with hormone systems in the body. Because of these risks, it's banned or restricted in several countries, and many brands now avoid it in favor of safer alternatives.
What does Benzophenone-2 do in a beauty product?
In a cosmetic product, BP-2 absorbs UV light and converts it into heat, which is then released. This protects both the product (preventing color or fragrance changes) and the skin from UV exposure. However, because it can penetrate the skin, it may enter the bloodstream and potentially affect hormone function.
Is Benzophenone-2 safe for most people?
Benzophenone-2 has moderate evidence of endocrine-disrupting effects in animal studies. It can be absorbed through the skin and may accumulate. Regulatory agencies in the EU and elsewhere have restricted its use. For most people, occasional low-level exposure is unlikely to cause harm, but regular use is not recommended.
Who should be careful with Benzophenone-2?
Pregnant or nursing individuals Those with hormone-sensitive conditions Anyone seeking mineral-only sunscreens
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.