Zero-damage gentle dyeing technology is widely adopted by high-end human-hair wig manufacturers. Traditional high-temperature dyeing will damage hair cuticles and shorten service life. New low-temperature mild dyeing solution preserves hair elasticity and luster. Products processed by this technology are positioned in high-end market, with unit price 25-40% higher than ordinary dyed wigs. Luxury wig retailers in North America and Europe are increasing purchases of such upgraded goods.