A kind of self-assessment device, including a series of toughies patches, hair sample user can be contacted and with roughness, to provide a user the hair sample indicated about relative status. Kit includes the self-assessment of hair care composition and device, as described above. One kind being used for Haircare composition, including device described in any preceding claims. Then a kind of state of assessment contacts one or more toughies paster apparatus by the hair sample of contact hair and -6 is then in harmony the roughness and hair sample most like about which toughies sticking patch ordered according to claim 1.
