Does the Keratin hair treatment contain methylchloroisothiazolinone or any form of isothiazolinone?

The Brazilian blow dry is the answer you need to fight back frizzy hair caused by the British weather! If you are looking for a semi-permanent way to smooth and nourish your hair, this keratin hair treatment is for you- also no more lengthy blow-dry sessions needed for up to 4 months, who’s in?