No Lye Hair Relaxers and pH

[u/PassportCruiser]

How much worse is Calcium Hydroxide, which is the main ingredient in No Lye relaxers. Vs Lithium Hydroxide and vs Ammonium thioglycolate? The pH is high but I don't see it being much different than other types of relaxers?

Do No Lye relaxers tend to open up the hair shaft more than other relaxers so more leakage of proteins, lipids, inner hair shaft materials?