By the way, you also said that yellow skin is suitable for dyeing chestnuts.
There is also the perm method, which lasts for a long time and is very popular now.
If you handle it, I'll teach you a secret. Buy a hood and put it on the hair dryer. After washing and applying elastin, the blow-drying effect is super good, which is a fluffy sense of leisure. This is a secret that my hairdresser taught me.