Hair Straightening Starter Set, Quasi-drug, Hair Straightening Agent, Pre- and Post-treatment Agent, Pre-treatment Agent, Post-treatment Agent, Hair C

●Hair Straightener●Salon/Professional Formula, 80g (Just the Right Amount for Partial Treatments, from Bangs to Sides Where Curls Are Most Noticeable) Formulated with treatment ingredients to minimize damage during treatment. Through repeated improvements, it has evolved into a formula that minimizes damage while maintaining its ability to straighten hair. ●Pre-Treatment●Minimizes hair damage and conditions hair for even penetration of the treatment. Prevents unevenness and leads to a better finish. Recommended for daily care before and after treatment. ●Post-Treatment●Hair straighten.. and bleaches use alkaline agents to open the hair cuticle, allowing the treatment to penetrate deeper. The post-treatment neutralizes any alkaline agents remaining in the hair after treatment, preventing further damage, conditioning the cuticle, and preserving the straighten.. and color. We recommend using the hair straightener within six months of opening. The pre-treatment can also be used daily as a leave-in treatment. Using the post-treatment product for a few days after treatment will ensure healthy hair. Once opened, please use up the pre- and post-treatment products as soon as possible.