Nano-Particles do NOT penetrate the skin?

BY MS Y CHEUNG, SKIN & MICRONEEDLE DOCTORAL RESEARCH SPECIALIST, BLACK ET BLANC

A recent article in the Daily Mail newspaper revealed that nano-particles do not actually penetrate the skin! This landmark research was based on work performed by a leading global expert on skin, Professor Richard Guy at Bath University in the United Kingdom.  Instead, Professor Guy reported that these particles only remain embedded within the folds of the skin.  It is unfortunate, but many cosmetic companies still try to entice customers into buying products by creating hype and improper representation of their products.

The penetration of particles into the skin is dependant on a number of factors such as the composition of the particles, the medium in which they are contained, for example in a liquid, a solution or a gel, and also factors such as skin temperature and skin thickness. Whilst it is possible for a few of these tiny particles to get through the skin via the pores and sweat ducts, so few would get through that it is highly questionable if there is any effect at all, let alone any lomger-term beneficial effects.

 

 nano

 The study shows that even the smallest nanoparticles don't penetrate the skin

Consumers should instead focus on seeing clear scientific evidence of the benefits of skin care products where wild claims are made. One way of doing this is to check with the company website or search for academic publications that support the claims being made. Be cautious however, since if a company can demonstrate that a few particles have been seen to enter the skin – they could use that as the basis to make their claim of general widespread skin absorption of the particles. 

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