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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

Philosophy Time In A Bottle For Eyes Pond's Acne Clear Pore Conditioning Toner FLOWER Beauty In Your Prime Hydrating Primer Boots Tea Tree Witch Hazel Back Spray Clean & Clear Essentials Deep Cleaning Astringent Darphin Intral Toner Derma Revive Natural Aloe Vera Gel Elizabeth Arden Visible Difference Replenishing Hydragel Complex Revolution x Jake Jamie Mince Pie Face Mask Simple Purifying Facial Wash Valjean Labs Restore Facial Serum Clean & Clear Essentials Oil Control Toner Garnier Pure Active Anti-Blackhead Deep Pore Wash Mario Badescu Glycolic Acid Toner Miss Lary Fixador Bruma Revolution Skincare X Jake Jamie Watermelon Hydrating Face Mask Revolution x Jake Jamie Toffee Apple Face Mask Mario Badescu Facial Spray With Aloe Sage And Orange Blossom Oriflame Sweden Milk And Honey Gold Smoothing Sugar Scrub Sanctuary Spa Green Smoothie Recharge Mask ULTA Beauty Coconut Cream Moisturizing Body Lotion Benefit Triple Performing Facial Emulsion Ciate Watermelon Burst Hydrating Primer Doctor Babor Rose Toning Essence Eisenberg Toning Lotion LACURA Healthy Glow Lee Stafford Coco Loco Coconut Mousse Natio Young Oil Control Toning Lotion Neutrogena Clear Pore Oil-Eliminating Astringent Valjean Labs Glow Facial Serum Anne moller Gel Limpiador Boots Cucumber Facial Toner Eisenberg Cleansing Make-Up Removing Gel Laura mercier Dual-Action Eye Makeup Remover Oil-Free Mario Badescu Facial Spray With Aloe, Cucumber And Green Tea Oriflame Sweden Love Nature Face Wash Energising Strawberry SkinCeuticals Phyto Corrective Gel Superdrug Vitamin E Gentle Micellar Solution Zelens Z Matrix Energy & Moisture Infusion Clarins Daily Energizer Wake-Up Booster Clinique Clarifying Lotion 4 Clinique For Men™ Oil Control Exfoliating Tonic Eisenberg Ultra-Rich Protectant Cream Eucerin Redness Relief Soothing Cleanser Faberlic Salon Care Hyaluron Active Plumping Shampoo John Frieda Frizz Ease 3-Day Straight Semi-Permanent Styling Spray Mario Badescu Face Spray With Aloe, Chamomile And Lavender Philosophy Time In A Bottle 100% In Control Proactiv Step 2 Toner Weyergans High Care Simply Red