2)Honestly i have no idea because there are alot of amino acids ( http://www.vitamincity.com/guidevitamins.htm)
and alot of them aid cell/skin repair.. It could be a specific one that cures cheilitis but i won't know. Amino acids are used to help people recover from surgery. I might take four or more... the brand i bought includes vitamin B6 so i don't need B vitamins seperate, but i have B Complex just incase.
I've read you can't overdose from amino acids.. but i would still be careful...
"Amino acid therapy, on the other hand, has virtually no reported side effects to date. There have been no reported cases of overdose from amino acids either. "
So i'll see how my body responds when i take it... its a tricky situation because maybe if you peel during taking these AA you might damage the cells that are repairing. I'll look for improvement and by that i mean resistance & BLOOD.