No bother at all. Interestingly enough, I am now listening to a radio programme and they are covering the subject of the ``12 -week blow-dry`` [this is news to me] But apparently this hair-do originated in Brazil and was to straighten `frizzy`hair. Apparently the Irish medicines Board has ordered the withdrawal of the products used, due to concerns of high levels of Formaldehyde in some products --up to 12 %. in some cases.....there is a guy on now from the Hair dressers side saying that most hair -straightening products have less than .2% and are `safe`and that the chemical is also in lipstick and other cosmetics. Apparently it`s a precautionary step, to allow an investigation into the chemicals used... so to the original poster of this thread [ person ] I`d just say maybe better not to be using those chemicals on a regular basis. Apparently this is only happening here as a precaution at the moment, but it makes you think. Paul.