DERMAdoctor Litmus Test pH correcting & renewing glycolic acid facial moisturizer
Litmus Test reestablishes healthy skin chemistry, promotes cellular turnover, soothes and quenches parched, sensitive skin.  Restoring proper equilibrium reveals a luminous complexion, the universal indicator of youthful, balanced skin.Litmus Test is a comprehensive approach to the challenges wrought by hormonal fluctuations, environmental stressors and aging skin physiology.