I’ve coloured my hair for years, do I still need a skin test? Yes. A skin test is a MUST before all colour services. Skin tests aren’t just for new clients, we skin test clients every 6 months. Certain factors can effect senistively to hair colour such as medication and operations, pregnancy, new tattoo's, semi and permant makeup, henna and much more. Without a skin test we are not insured to carry out any form of chemical service. Reactions are becoming more and more heard o