Hair Color Chemistry, Valerie George @cosmetic_chemist, at the Hair Science E-Summit

[@alliekrug2462]

I would love to see the whole 8 hour class

[@yvettefrontany8996]

I would love the 8 hour video how do I obtain it?

[@marysmith3710]

Is there any color that is mass produced that isn't made with ppd, or ammonia.

[@Peonia-Melbourne]

omg you talk way too softly i have you on full blast and still cant hear you