I have had excellent results mixing fairly strong lactic and glycolic acids in LacSal and I was thinking of mixing some alpha hydroxy acids into CPs as well, at least from time to time.
I understand that the CPs would increse the PH of the acids, but I can make the acids stronger just by adjusting the water dilution. I also know GHK should not be mixed with acids because it would be broken down and that second generation CPs are instead less delicate and can be mixed with acids.
I was wondering if there is a maximum threshold of lactic / glycolic concentration (or a minimum PH level), beyond which the second generation CPs would also break down?

Thank you so much for your patience with all the random questions I come up with on a regular basis!!