Home / Brands / Oligo / Waves & Texturizers / EXO PERM EXO PERM Exothermic wave for resistant grey and white hair. Ammonia Free Thio Free Categories: Oligo, Waves & Texturizers Description Description Exothermic wave for resistant grey and white hair. Ammonia Free Thio Free Related products GLOSS MEN CO-WASHES – LIGHT BROWN FUNKHUE AZURE BALAYAGE CLAY LIGHTENER GLOSS MATTE SERIES 13/AG