Wonderful stuff if used for the right reasons.
Irritation or need to spark some regrowth with minoxidil. Copper-Peptides are best used for those reasons, and when used as a add-on. By themselves, they aren't going to do very much at all. The two biggets makers of Copper-Peptides recommend using it as an adjunct as well to a Regimen.
Plus the stuff is so cheap and if used once a day or even just a few times a week it is a minor add-on to your Regimen in terms of cost.
Never used Revivogen.......