H. Zunino

Combined retinol–lactose–glycolic acid effects on photoaged skin: a double‐blind placebo‐controlled study

G. Stamatas, M. Lanctin, C. Bertin, 2008, International journal of cosmetic science.

A double-blind evaluation of the activity of an anti-cellulite product containing retinol, caffeine, and ruscogenine by a combination of several non-invasive methods.

J. Hopkins, M. Massonneau, C. Bertin, 2001, Journal of cosmetic science.