It truly is quickly transformed into GHB by lactonase enzymes present in the blood.[5] GBL is a lot more lipophilic (Extra fat soluble) than GHB, and so is absorbed more rapidly and has better bioavailability; paradoxically This will imply that GBL provides a more quickly onset of effects than GHB https://bestchemshop.com/product/gbl-gamma-butyrolactone-lab-grade-99/