Hair Extension Boost Mask has been specially formulated to use as a treatment on hair extensions because it’s oils help to nourish the extensions. This teaming will also help soften and polish the hair. This conditioning treatment will add depth of colour and shine, therefore leaving your hair feeling refreshed and silky. Suitable for use on all types of extensions, as well as natural hair. This product is vegan, as well as being free of the sulphates and parabens that can cause damage to extensions.