I bought it from ebay for Â£8 and diluted it in 120mL of pure hyaluronic acid (from Amazon Â£19 if I am not mistaken) so that makes it 0.1% Copper peptide. I used it for the first time on my face during microneedling procedure (my second time treatment) to lubricate my skin. I noticed the difference from my first treatment (using Pure hyaluronic acid as lubricant). I found that using 0.1% copper-peptide-HA makes my acne scars more visible (the dented scars!) My first microneedling treatment gave alot of improvement at least my scars were not noticeable in a bright light room but now after copper peptide application, my dented scars are more visible. So, after a week and my scars still visible, I throw my copper-peptide-HA mixture in a toilet bowl (Such a waste! especially the 120mL HA). All those ads saying it improves scars are fake! I am not sure if it takes some downtime or whatsoever, but I know that copper at 0.1% destroy collagen and induce the collagen remodelling. So maybe my scars now undergo collagen breakdown? then later on proceed to collagen induction phase? But, now I need to avoid that risky process, I rather stick to my first microneedling prcedure: Numb cream > Clean it> Hyaluronic acid gel> microneedling 2.0-2.5mm> leave overnight > T3 face wash (body shop)> human EGF serum> Vitamin C cream (body shop). And of course SPF30 sunscreen. Btw, I am using an automated microneedling not the roller one. It was Â£56 on Amazon uk. It at least improved my dark scars after I mistreated my face with 50% TCA! now those purplish-dark scars are gone and getting a little bit fade red. But for me red is fine rather than dark purple. dont get me wrong, this review is nothing to do with the CP product by CLEAR SKINCARE. this review is for Copper peptide by ACTIVE FORMULAS on ebay.