Sergio Testing the VIURE KERATIN DEFENITIVE Formula Tested Hair - Ethnotype. Medium density. Porous. Wavy. - Before: Keratin treatment 1 year ago. Hair is dyed with regular household dyes. Hair is dry, porous, brittle. - Client’s Wishes: Nourishment, s... hair nourishment hair review hair shine hair smoothing hair straightening keratin treatment porous hair care May 1, 2026