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laboratory testing
Actives – Delivery, Deposition, Penetration
Delivery, deposition, retention, and penetration of actives can be investigated and visualized using multiple techniques
Confocal Raman microscope can track actives deposition and penetration into skin with minimal sample preparation with spatial resolution ~1 μm.
ATR-FTIR imaging after tape stripping technique provides detailed information about actives deposition and penetration into stratum corneum, as well as penetration enhancement by chemical penetration enhancer (PE).
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