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Market Demand of Hair modification 1、 A large member of alopecia.In China,prevalence rate of androgenic alopecia is 21.3 ％in male adults,increasing with age.2、 Female alopecia is also common.3、 The phenomenon of alopecia becomes lower in age.The younger,the more urgent the patients require treatment.4、the alopecia caused by trauma or disease of scalp is common.5, In fact, alopecia is also a popular phenomenon around the world.