London: Researchers have found that even the most expensive cosmetic creams cannot `penetrate` the skin to repair it from within as claimed by manufacturers. Scientists at the University of Bath found that claims by pharmaceutical brands that nanoparticles in their products give their creams a `deep penetrating action` are `patently` untrue. Even the tiniest of nanoparticles do not penetrate the skin`s surface, creams are simply deposited into creases in the skin and do not carry nutrients deep under the surface, the study found. "Whereas earlier work has suggested that nanoparticles appear to penetrate the skin, our results indicate that they may in fact have simply been deposited into a deep crease within the skin sample," Professor Richard Guy, a professor of Pharmaceutical Sciences who led the research, said. "The skin`s role is to act as a barrier to potentially dangerous chemicals and to reduce water loss from the body. Our study shows that it is doing a good job of this," Guy said.
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