Human hair has been studied by x-ray diffraction and electron microscopy for many years, however a complete picture of its structure is still missing. Hair is a weakly scattering, disordered, and heterogeneous system. The use of thermal analysis, particularly DSC, for characterising damage and proposed repair of human hair is widely used by hair care scientists. However, even if DCS is a valuable tool to look for changes in both hair structure and the environment surrounding the water present in its structure, additional measurements are need to understand the structural changes caused by external effects. Therefore, with this proposal we aim not only to open new perspectives in the advance of innovative products for hair repair, but also textend the use of quasi-elastic neutron scattering to unravel the properties structures of poorly ordered/multi-phase systems.