It is promptly converted into GHB by lactonase enzymes found in the blood.[five] GBL is much more lipophilic (Body fat soluble) than GHB, and so is absorbed a lot quicker and it has greater bioavailability; paradoxically This could certainly suggest that GBL contains a quicker onset of outcomes than GHB https://www.facebook.com/gamma.butyrolactone.gbl