Keratin is a naturally occurring protein in human hair which makes the hair smooth and straight. If you want to tie your hair up you should wait until at least three days after the keratin treatment.
Keratin Treatment Salon Services California Hair Extensions https://calhairextensions.com/salon-services-keratin-treatment/
Keratin Treatment Niles No More Frizz Or Unmanageable Hair https://pilorumsalonandspa.com/professional-hair-salon-services-niles/keratin-treatment-niles/
Keratin Treatment On Long Indian Hair https://www.youtube.com/watch?v=PJT98BuwCD8