La Roche College

Reciprocity and the adjoint medium – what the space-time symmetry preserves when the constitutive relation is not a scalar

A medium whose properties are modulated in space and time can be built to pass a wave one way and block it the other, and a body of work exists on how to do so. The opposite question is asked less often: what forbids it? For a medium described by a real scalar permittivity, one a...

Skin barrier repairing and anti-aging effects evaluation of a comprehensive topical regimen incorporating niacinamide, Pro-Xylane, and panthenol after PicoWay laser: a randomized controlled study

Pro-Xylane is a potent anti-aging ingredient; however, there is limited knowledge regarding whether a comprehensive post-procedure regimen incorporating a combination of Pro-Xylane, niacinamide, and panthenol alongside other active agents can deliver synergistic benefits for both...