Rick Y.
My thoughts as a return user
Being a clinical scientist and knowing John also comes from the commercial side of the medical industry, having clinical significance and effect size would go far, though I understand the financial constraints of clinical trials. Additionally, I had two comments about the products. First, The bristles on the exfoliation brush are aggressively firm necessitating warming them to make them more pliable as using them are painful and nearly impossible to use after a derma rolling session. Lastly, I am using the A5F though intended to order the A15F topical. It arrived at the PO Box so I will begin this weekend; however the A5F product leaves the hair with a greasy consistency for a few hours after application. I'm not a chemist and am not aware if altering the product to act more like a hair styling product, but if possible it would improve the end user experience




