First let me say the customer is 100% 1st class. All of my orders have arrived in perfect condition and in a timely fashion. This is absolutely the best formaldehyde free Treatment that I have used of any brand. I used the pure renewal plus on the same guest twice to compare the results to another brand that was done in the past. And PRP came out on top. The hair was shinier and had more body on the day of treatment, oh and not forget didn't have any alarming smells. At the 3 month mark my guest still had Keratin treated hair that you could see and feel. My guest says that she loves this Treatment and could immediately tell the difference.