The hair structure is a unit where hair scalp, follicle and shaft must be considered as a whole.1,2 The scalp is the hidden essential in hair biology and is responsible for the nourishing, biology and mechanical behaviours of the pilosebaceous unit. Therefore, all the parts of hair are interconnected and the whole hair system can be revitalized based on the new concept of hair ‘tensegrity’.
The term ‘tensegrity’ comes from architecture and is coined from the contraction ‘tensional’ and ‘integrity’ - components of any structure under compression while they are inside a network in continuous tension. The components of any structure are continuously exposed to external forces.3,4
All the structural elements are interconnected, so any change applied to one of them will affect the rest. Each structure must have an equilibrium between a good resistance and sufficient flexibility.