Assessment of penetration and permeation of caffeine by confocal Raman spectroscopy in vivo and ex vivo by tape stripping.
Ghaith KourbajAnnette GaiserStephan BielfeldtDominique LunterPublished in: International journal of cosmetic science (2022)
The relevance of conducting invasion and depletion studies became clear and was able to show the still existing problems in the comparability of CRS and tape stripping.