The inside story Just as with skin, the secret to beautiful hair and nails comes from within. Both hair and nails share a similar composition and are formed through the process of keratinisation. Keratin is the fibrous protein that gives cells strength and structure as they move to the surface. The maturing cells lose their nucleus, so are no longer alive when the hair shaft and nail plate become visible. Topically applied treatments can only enhance what’s seen and cannot impact on the synthesis of structural proteins at source. Naturally strong, glossy hair and nails need to be nourished from within. All nutrients essential for growth, strength and shine are delivered via the bloodstream.