At least 24 hours

On the 25th, the reporter went and saw city several hair care stores in island, didn,t see a to dye to do the hair care store that the skin experiments before the hair to the consumer and even connected to remind that the consumers all can not do it.
"Need not skin experiments, you trust like, we this of dye hair cream quality all right.However you if insist doing on trial words can also, however at least wait for a day."A hair care store in the neighborhood of Nanking road in, when the reporter inquires to dye hair on his/her own initiative to don,t do a skin to experiment, the barber tells a reporter like this.The reporter understands through an interview, in some hair care stores, some barbers even the skin experiments all don,t know.
Experiment to the skin allergy, the reporter covered the barber of gum southern a certain hair care store Mr. Zhang, he told a reporter:"The skin experiments be chase a little amount product daubery after consumer is ear or wrist, at least 24 hours, if have no badly reaction, explain that the consumer use towards dying hair cream not allergic, canning.But the consumer came, affirmation be directly rush to dye to deliver come of, the hair care store is to be in the light of profits to go, time is the sooner the better.Have no which store house will remind that the consumer is a skin to experiment on one is own initiative, this equals to outside push toward the door the customer.Can say so, whichever because the use dyes hair cream to cause allergic consumer, if did a skin to experiment before using, affirmation will avoid not good result occurrence.But regrettable of BE, this kind of good intentions of remind and necessity of way of doing, all no one comes to carry out.The consumer doesn,t know that barber doesn,t remind, meet allergic skin or quality to differ of dye hair cream, suffer mental agony of is a consumer.This is a common feature of local hair care profession currently."