What does hair keratin care include?

❌ suitable sulfate-free shampoo
❌ hair mask
❌ no coloring and bleaching of keratinized hair
❌ hair cutting
❌ cold water
❌ satin or silk pillowcase
❌ keeping the hair dry
❌ gentle brushing
❌ not washing the hair too much
❌ vitaminizing the hair
❌ covering the hair
❌ the right way to sleep
❌ not tying the hair
❌ having proper nutrition
❌ drying hair after bathing
❌ spa
❌ not using thermal devices
❌ sand care