Research Chemist, University of California, Riverside
Twenty year academic research career focusing upon photochemistry of intrinsic and extrinsic epidermal chromophores (urocanic acid, UV filters, ROS sensitization) and epidermal environmental conditions (stratum corneum pH, ozone). Developed two-photon fluorescence lifetime imaging methodology to visualize the stratum corneum pH gradient. Visualization of UV induced ROS as a function of epidermal depth and keratinocyte location using fluorescence microscopy techniques. Identified conditions by which FDA-approved UV filters can sensitize ROS in individual epidermal layers above intrinsic epidermal levels.
Fifteen year consulting experience with sunscreen R&D leaders, focusing upon antioxidant performance in OTC sunscreens.
Expert witness consulting in patent litigation, using my experience in spectroscopy, separations and data analysis.
How do the chemicals in sunscreen protect our skin from damage?
May 27, 2017 04:25 am UTC| Health
Not so long ago, people like my Aunt Muriel thought of sunburn as a necessary evil on the way to a good base tan. She used to slather on the baby oil while using a large reflector to bake away. Aunt Muriels mantra when the...
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