i just remembered most really bad products.
Luster's Pink Moisturizer Gel and Moisture creme (Don't even get me started in this product)
ALL froms of GREASE (the days of not knowing any better)
Palmers Hair Care Range (came up in a rash)
S-curl (dried the hair so badly it looked as though I'd dyed it ginger)
Curl activators from ethnic shops (the same as the S-curl)

For the best part of 19 years my hair has been so badly treated that I'm actually surprised I have any hair on my head let alone shoulder length hair that is still growing)