I DO HAVE AMERICAS WORST HAIR. ABOUT A YEAR AGO I DYE MY HAIR. I BROKE OUT WITH A REALLY BAD ALLERGY. SO BAD THAT FEW MONTHS AFTER MY HAIR STARTED TO FALL. I LOST A GOOD PORTION OF MY HAIR. LOT OF IT IS GROWING BACK BUT SLOWLY. AS U CAN IMAGINE MY HAIR IS SO UNEVEN. I HAVE TO KEEP IT UP ALL THE TIME. I CANT TO ANYTHING TO MY HAIR LIKE I WISHED.

Based on a recent survey in London, it was found that the incidence of contact dermatitis resulting from hair dye use had increased by more than 7%.

Cochineal is the name of both crimson or carmine dye and the cochineal insect (Dactylopius coccus), a scale insect in the suborder Sternorrhyncha, from which the dye is derived. There are other species in the genus Dactylopius which can be used to produce cochineal extract, but they are extremely difficult to distinguish from D. coccus, even for expert taxonomists, and the latter scientific name (and the use of the term "cochineal insect") is therefore commonly used when one is actually referring to other biological species; suffice it to say that the reader should be aware that there is more than one cochineal insect. The primary biological distinctions between species are minor differences in host plant preferences, in addition to very different geographic distributions. D. coccus itself is native to tropical and subtropical South America and Mexico.This type of insect, a primarily sessile parasite, lives on cacti from the genus Opuntia, feeding on moisture and nutrients in the cacti. The insect produces carminic acid which deters predation by other insects. Carminic acid can be extracted from the insect's body and eggs to make the dye. Cochineal is primarily used as a food colouring and for cosmetics.After synthetic pigments and dyes such as alizarin were invented in the late 19th century, natural-dye production gradually diminished. However, current health concerns over artificial food additives have renewed the popularity of cochineal dyes, and the increased demand has made cultivation of the insect profitable again.