So far I haven’t noticed any. I just have some hyperpigmentation

Yeah I have hyperpigmentation too. Bought a big UVB lamp that's supposed to help but I don't use it enough to know if it works

I have trouble getting my dose correct sometimes, because I am very active, but no side effects. Feel like crap if to little and same if I take to much. If you take to much (a lot)you will see your face getting wider and possibly swelling in your upper back (like a hunchback but not as pronounced) taking to much is an easy fix...... taking to little causes a dirt nap. You do the math