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Benzophenone-4

Also-called-like-this: Sulisobenzone
What-it-does: sunscreen

Details

A water-soluble, chemical sunscreen agent that is a secondary UVB absorber with some activity in the short UVA range as well. Being a secondary UV absorber means that its protection is weak and it has to be combined with other sunscreen filters for proper sun protection. 

More often than not, Benzophenone-4 is not used as a sunscreen agent but as a photoprotectant to extend product shelf life, or as a color-protectant for products in clear packages. 

A Contact Dermatitis article from 2007 names BP-4 as an emerging allergen, as it was the most frequently positive chemical UV filter and third most frequently positive ingredient overall among the 35 substances patch tested in the study (13 positives of 1693 people tested).

Show me some proof

  • Hughes, T. Merion, and Natalie M. Stone. "Benzophenone 4: an emerging allergen in cosmetics and toiletries?." Contact dermatitis 56.3 (2007): 153-156.

Products with Benzophenone-4

Bath & Body Works White Tea And Ginger Shower Gel Darling Glowy Face Cream Spf 50+ OVALE Facial Lotion Aloe Vera Whitening With Yam Bean Extract Simple Kind To Skin Dual Effect Eye Makeup Remover Interfarmac s.r.l. Evìta Sun Spf 50+ LDA Gligel Softener Gel Peter Thomas Roth Cucumber De-Tox Foaming Cleanser TRESemmé Keratin Smooth Heat Protect Spray needs Sabonete Gel Limpeza Diária - Pele Normal A Seca Fix derma Shadow Spf 30+Gel Fix derma Shadow Sunscreen Spf 80+ Kaley Skincare Watermelon Sunblock Lancaster Comforting Perfecting Toner Mario Badescu Glycolic Gel Philosophy Time In A Bottle For Eyes Pond's Acne Clear Pore Conditioning Toner Queen Helene Grape Seed Peel-Off Masque Be you (B.U.) Hidden Paradise Shower Gel Daneen UV Daily Pro Equate Kids 3-In-1 Shampoo, Conditioner, & Body Wash, Unscented FLOWER Beauty In Your Prime Hydrating Primer LDA Loxidil Amika Bombshell Blowout Spray Baxter Citrus And Herbal Musk Invigorating Body Wash Boots Tea Tree Witch Hazel Back Spray Clean & Clear Essentials Deep Cleaning Astringent Darphin Intral Toner Derma Revive Natural Aloe Vera Gel Derma V10 Aloe Vera Gel Elizabeth Arden Visible Difference Replenishing Hydragel Complex Palmolive Aroma Moments So Relaxed Shower Gel Payot Lotion Tonique Reveil Revolution x Jake Jamie Mince Pie Face Mask Simple Daily Skin Detox Purifying Facial Wash Simple Purifying Facial Wash Simple Water Boost Hydrating Booster Superdrug Tea Tree Cleanser Toner ULTA Beauty Brazilian Sunset Moisturizing Body Wash Valjean Labs Restore Facial Serum Vaseline Vaseline Healthy White Fresh & Youthful Whitening Gel duru Hydro Pure Aloe Vera Duş Jeli needs Facial Sabonete Gel - Pele Normal A Mista By Terry Cellularose Hydra-Toner Revitalising Radiance Clean & Clear Essentials Oil Control Toner Creme of Nature Argan Oil Leave In Conditioner Garnier Pure Active Anti-Blackhead Deep Pore Wash Kmart Micellar Cleansing Gel With Vitamin E Mario Badescu Glycolic Acid Toner Miss Lary Fixador Bruma Optaderm Clear Up Refreshing Skin Rinse