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
Clearsal Cleanser
GSK Stieva-A Cream
Iaso Intensive Clear Booster
JustSkin Toner Pads
Walgreens Ivermectin Lotion
ALGENIST GENIUS Liquid Skin Resurfacing 2% BHA Toner
Beauty of Joseon Glow Serum
Dermaglos (andromaco) Acifusin B
Skin Republic Pure Retinol 0.2% Serum
Stiefel Stieva-A Tretinoin Cream 0.05%
Stiefel Vitanol-A
Almirall TAZORAC® (tazarotene) gel, 0.1%
Makiê Mini Camuflagem De 4g
Lee Stafford Poker Straight Shine Serum
Max Factor Creme Puff Pressed Powder
Rushr Sunscreen With Zinc
BIGDROP Acne Treatment Nighttime
Hourglass Unreal High Shine Volumizing Lip Gloss
Jaloma Aceite De Argan
John Jeff 20% Azelaic Acid Acne Treatment Gel
The Chemist Look Booster Retin-E
The U Pharmaceuticals Twenty Cream Tretinoin 0.025%
Watercome Salicylic Acid Fragrance Shower Gel
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
Dr. Brandon White Expert Clinical Acne Care Solution Body Care
Palmer's Palmers Raw Shea Butter Balm With Vitamin E
Preparation H Hemorrhid Gel Maximum Strength Treatment With Aloe
Rinopanteina Nasal Ointment
Skin Republic Retinoid Complex 1% Serum
Skinsmiths Retinol Booster
Yolanda Evanescence Soft Matte Cream Concealer
BIO one Vitamin C Cream
Catharine Hill Paint Stick
Derma Decode Advance Retinol Face Serum
Environ Dual Action Pre-cleansing Oil
Galenika Jekoderm Mast
Huapont Viaminate and Vitamin E Cream
Keromask Full Coverage Foundation + Concealer
Medik8 Retinol 3 Tr
O.TWO.O Four Colours Grooming Powder #02
Pharmaceris A Duo Concentrate With Vit. A & E
Pharmaceris Everyday Bath Emulsion
Prairie Bliss Botanicals Breakout Rescue Cleanser