Ask DrJProfessional and Nails GuardAsk Dr. JAsk DrJDrJPERQUEPERQUE Bone Guard FortéPERQUE HairSkin Why is strontium included in PERQUE Bone Guard Forté and PERQUE Hair, Skin, and Nails Guard? DrJ Dr. Russell Jaffe (DrJ) on why strontium is included in PERQUE Bone Guard Forté™ and PERQUE Hair, Skin, and Nails Guard™?Share this: Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Share on Pinterest (Opens in new window) Pinterest Share on LinkedIn (Opens in new window) LinkedIn Share on Reddit (Opens in new window) Reddit