AMino Acids FOr Better Skin?

[fitskin]

I know amino acids make up proteins and that there are skin care lines with amino acids in them but.. has anyone ever heard of taking amino acid supplements to improve the skin?

I found this online and wondered if they work and anyone noticed improved skin as a result?
Thanks!
:)
http://www.ajiaminoacids.com/docs/research/Beautiful_skin_and_amino_acids.pdf