The advertisements I have seen all begin with a glowing testimonial for lysine supplements as a rosacea therapy, then warn that not each type of rosacea will respond to lysine, and shut without telling the shopper which kinds of rosacea will reply to lysine and which sorts will not.

The Lysine 65 Residue in HIV-1 Reverse Transcriptase Function and in Nucleoside Analog Drug Resistance.

reference.comSome people get canker sores often, while others could never have one. In an effort to replicate, the herpes virus requires arginine , another amino acid that's common in foods and essential to human life