Dayan, Steven H A phase 2, double-blind, randomized, placebo-controlled trial of a novel nutritional supplement product to promote healthy skin. [electronic resource] - Journal of drugs in dermatology : JDD Oct 2011 - 1106-14 p. digital Publication Type: Clinical Trial, Phase II; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 1545-9616 Subjects--Topical Terms: Administration, OralAdultAgedCarotenoids--metabolismCase-Control StudiesDietary SupplementsDouble-Blind MethodFemaleHumansMaleMiddle AgedPatient SatisfactionSkin--drug effectsSpectrum Analysis, RamanTreatment OutcomeWater Loss, Insensible