ForumsAcne and its treatm...Scar treatmentsHylase Notifications Clear all Hylase Salient Double MemberMember107(@salientdouble) Posted : 11/22/2017 10:08 am Hi,how long would you wait after hylase to do a subcision? Quotebeautifulambition MemberMember1750(@beautifulambition) Posted : 11/23/2017 2:56 pm At least a month or more. Why because it dissolves collagen. Collagen takes 3 months to rebuild, ... you don't know the full extent of the dissolving / normalization of the skin till then. Quote