Honestly if it only lasts 6-12 months then why not just stick to
Hyaluronic Acid (
HA), which for some guys can last even longer? At least there you know it's effective and has a relatively solid safety profile. Whatever purported advantage it may have over
HA simply couldn't justify taking such a gamble in my opinion, unless of course you (1) travel to South Korea often and/or (2) know a trusted doctor there.