Wunderbar Gloss ‘n Tone is a Liquid demi-permanent colour and the latest addition to the Wunderbar colour family. The vegan, ammonia-free, zero-lift formulas are ideal for enhancing or intensifying colour, with an acidic pH for optimal hair condition and shine. Colour results last approximately 20 washes and gradually fade without visible regrowth, making it a perfect choice for glossing, toning, or colour correction and balancing services, with a speedy 5-20 minute development time.