ForumsArchive of old foru...Acne and its treatm...Over-the-counter ac...Should I use The Or... Notifications Clear all Unless you have severe, widespread, and scarring acne, The Regimen is normally my suggestion for the most effective acne treatment.My suggested acne treatment Learn The Regimen → Learn The Regimen → Should I use The Ordinary products with the regimen?lalisa MemberMember0(@lalisa) Posted : 07/22/2019 6:05 am Hey folks!Is it ok to add The Ordinary's niacinamide and zinc serum to the regimen? And if so, would you apply this after cleansing and before the treatment? Thanks Quote