Details
It's the acronym for Butylated Hydroxy Anisole. It's a synthetic antioxidant that's used as a preservative.
It's a somewhat controversial ingredient: The U.S. National Institutes of Health says that BHA is "reasonably anticipated to be a human carcinogen based on evidence of carcinogenicity in experimental animals" (source: wikipedia). But, and this is a big but: these experiments were made on animals and BHA was used in high doses as part of their diet. There is no evidence that the same is true when used in tiny amounts in cosmetics products. So you probably have nothing to worry about, but if you are a better safe than sorry type there are plenty of nice products without BHA to choose from. :)
Products with BHA
Leo Pharma Fucidin Fusidic Acid
Airol cream 0.5 Airol Cream
GSK Stieva-A Cream
ALGENIST GENIUS Liquid Skin Resurfacing 2% BHA Toner
Dermaglos (andromaco) Acifusin B
Stiefel Stieva-A Tretinoin Cream 0.05%
Stiefel Vitanol-A
Almirall TAZORAC® (tazarotene) gel, 0.1%
Hourglass Unreal High Shine Volumizing Lip Gloss
The Chemist Look Booster Retin-E
Ziaja Med Nourishing Bath & Shower Oil
Airol cream 0.5 Tretinoina
Ashley Double Mascara
Aviva Pharma Gloriva Facewash
Beauty Drops Retinol 0,5% In Squalene
Belé Makeup Italia B.One Bronzing Powder
Palmer's Palmers Raw Shea Butter Balm With Vitamin E
Preparation H Hemorrhid Gel Maximum Strength Treatment With Aloe
Rinopanteina Nasal Ointment
Skinsmiths Retinol Booster
Huapont Viaminate and Vitamin E Cream
Medik8 Retinol 3 Tr
O.TWO.O Four Colours Grooming Powder #02
Pharmaceris A Duo Concentrate With Vit. A & E
Prairie Bliss Botanicals Breakout Rescue Cleanser
Revolution Skincare 1% Retinol Super Intense Serum
Salve Parasoft Emollient Lotion
Sesderma C-Vit Liposomal Mist
Deborah Milano La Cipria Compact Powder
Hipoglos Cuidado Diario
Ketrel Tretinoin 0.05
O.TWO.O Velvet Shaping Lipstick
Regaliz Solasafe Sunscreen Spf 50+
Retacnyl Tretinoin Cream 0.05%
Revlon Orofluido
Revolution Skincare Fine Line Correcting Serum - 0.2% Retinol
Revolution Skincare Retinol Serum
Solasafe Silicone Sunscreen
Twenty Eight Street Pore Refining Facial Toner
Frank Body Anti-Makeup Cleansing Oil
Graftobian Hd Foundation
Mehron Creamblend Stick Makeup
Revolution Skincare 0.5% Retinol Intense Serum
Revolution Skincare Extra 0.5% Retinol Serum With Rosehip Seed Oil
Ziaja Natural Olive Cream
omega pharma Dermosan
Linco Care Re-Gen Oil
Orva Azelderm
Palmer's Cocoa Butter Formula Moisturizing Body Oil
Rosken AD Probiotics Cream