Clinical Studies ageLOC® Y-Span Research - Effect on Gene Expression. ageLOC® Y-Span Research - Effect on Skin Carotenoid Score ageLOC® Y-Span Research Clinical Study: Effect on Facial Skin ageLOC® Y-Span Research - Effect on Ageing Defense Mechanisms ageLOC® Transformation - Clinical Bulletin ageLOC® Y-span Research - Effect on Ageing & Vitality ageLOC® Tru Face® Essence Ultra - Clinical Bulletin ageLOC® R2 Day - Clinical Study ageLOC® Nutriol® Hair And Scalp System - Clinical Study ageLOC® Galvanic Spa® PowerMask - Clinical Graphic ageLOC® Y-span Research - Effect on Brain Health ageLOC® LumiSpa® Acne System - Clinical Study ageLOC® LumiSpa® Accent - Clinical Study ageLOC® LumiSpa® System - Clinical Study ageLOC® Galvanic® Body Spa - Technical Bulletin ageLOC® LumiSpa®, ageLOC® ME Serums and ageLOC® Galvanic® Spa - Clinical Study ageLOC® Y-span Research - Effect on Gene Expression in Multiple Tissues Beauty Focus Collagen+ Clinical Bulletin