Thompson & Co prides ourselves in delivering beautiful and HEALTHLY hair. Our color line, Oligo, supports our values as we continue to produce magnificent color results. Oligo is ammonia and PPD Free giving the hair superior shine, conditioning factors, and ultimate scalp comfort. Containing four key organic essences avocado oil, pomegranate seed oil, primrose oil and shea butter, Oligo feeds the hair natural ingredients while maintaining fashion forward looks.