I was reading labels over at Avon and kept running across BHT on the ingredients lists. That name set off alarm bells, but I couldn't remember exactly what that chemical does and how it is harmful. Oh, boy! It's an antioxidant additive that keeps food and products from going rancid. It's also banned in several countries, accumulates in body fat and causes cancer in rats.
This info is from Wikipedia. Yet another nasty chemical in our daily products to avoid!
Butylated hydroxytoluene (BHT), also known as Butylhydroxytoluene, is a lipophilic (fat-soluble) organic compound that is primarily used as an antioxidant food additive (E number E321) as well as in cosmetics, pharmaceuticals, jet fuels, rubber, petroleum products, and embalming fluid.
E320 or Butylated hydroxytoluene (BHT) is an additive that accumulates in the body fat. It is known to cause cancer in animals and disrupt the body’s hormone balance. Laboratory studies have shown BHT causes cancer and results in detrimental reproductive effects in rats.  It is banned in foods for infants and young children in Australia and has been banned in Japan since 1958. Official committees of experts recommended that it be banned in the UK, however because of industry pressure it was not. McDonald's eliminated BHT from their US products in 1986 due to the harmful effects.
Um, I'm going to have to pass on that nice, juicy mouthful of BHT lip balm product. Sorry, Avon!