The Times explains:
What is it? A permanent hair repair treatment that uses nanotechnology - the science of manipulating matter on a molecular level. Healthy hair is made up of 90 per cent keratin and 10 per cent moisture, but environmental or cosmetic damage can leave it split, with craters or minute cracks. Nanomax claims to penetrate the hair, duplicating its natural structure, helping to heal, repair, strengthen, protect and shine.
Trichologist's verdict: "It is not possible to 'heal' or 'repair' a broken hair, although remoisturising it is beneficial. ... There are more effective ways to remoisturise and condition your hair that don't blind you with (pseudo) science,” says Philip Kingsley, a trichologist. More here
The newspaper used a human "guinea-pig" for its nanotech experiments, by the way. I am proud to say that NanoBot and Small Times (back when I was news editor) bravely pioneered this method of using human test subjects.