Unfading hair dye

China classifies hair dye cosmetics as special-purpose cosmetics, using hair dyes as their active ingredients. Manufacturers produce different types of hair dyes to achieve varying coloring effects. We categorize hair dyes into three types based on these effects: temporary, semi-permanent, and permanent hair dyes. Temporary hair dyes retain color for the shortest time, lasting only 7-10 days and washing out easily, thus serving only as a temporary decoration. Semi-permanent hair dyes maintain color for 3-4 weeks. Permanent hair dyes offer the longest-lasting effect, maintaining color for 1-3 months. This long-lasting quality makes permanent hair dyes the most commonly used and important type in the market.   Temporary hair dyes These […]