From Michael's own research and lifetime experience, he says that nothing truly works consistently to speed up hair growth beyond its normal rate, but that 99% of hair length issues are because the hair isn’t looked after on the outside. Michael recommends the LifeSaver Pre-Wash Treatment, £29 , which is filled to bursting with a high concentration of cashmere protein hydrolysed into smaller amino acid molecules to penetrate hair strands and strengthen from root to tip. Apply before you jump in the shower and let it work its magic for 45 minutes before shampooing out. "The ingredients inside are almost identical to the human hair molecule, which means they are absorbed deep into the hair shaft to fill the voids or cracks and hold the hair together, so that it ages more slowly," says Michael. "That means less thinning, less breakage and less split ends."