Industries are more eager to the age of nano than the academic circle; the nano-technologies seen amoung commodities are alomst more versatile than what the academic researches can proove. Now a new shampoo use 'NANO' directly as its brand, implying a posteriori that we can enjoy again more from the nano-science in term of hair treatment.
The shamoo, one product of the Watsons' hair treatment series, is claimed to contain titanium dioxide (TiO2) nanoparticles, which could penetrate more effectively into the hair and, thanks to its photocatalytic oxidation characteristics, oxidize the harmful residues after hair perming.
The bio-safety of nano-technologies or products have become a heated issue in at least US or UK as I know, but in China, there is currently no restriction in this field. If the shampoo really contain nanoparticles, however, I think the first issue woiuld not be the safety, but the effects of TiO2 as a dye. As a well-known white pigment, TiO2 possesses an outstanding chemical stability. In a country where a black hair is regarded trait of beauty, applying white dye on the hair may hardly be favorable in this case.
3 comments:
that is pretty interesting. is it only sold in China? here, more women seem to want to lighten their hair rather than to darken it.
Actually, in the UK, I think cosmetics and toiletries manufacturers will side-step "nano" as a branding/marketing cue because there is such negative hype talked about nano in the media. Nanotechnology will turn the world into a grey goo, the tabloids enthuse, having taken their cue from Prince Charles (who should be locked in the Tower of London until he completes a science GCSE!!!)
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