Historically, work on fluorescence is rooted in studies of epipolic dispersion by John Herschel (17921871), who described a blue glow emanating from a thin, superficial layer (epipolic stratum from Greek , a surface) of a colorless quinine solution near the surface where the light enters, with such epipolized light been changed in some way, as it was incapable of being epipolized again, indicating that epipolic dispersion is different from scattering (Herschel, 1845a
To a lesser extent, some studies involve aging primates or other organisms
How to Use: Apply according to your skincare protocol
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