A personal care conditioning and/or styling synergistic composition for a keratin substrate comprising: (i) about 0.1 wt. % to about 20 wt. % of PolyAPTAC polymer； (ii) about 0.1 wt. % to about 5 wt. % of Polyquaternium-37； (iii) about 0.1 wt. % to about 5 wt. % of at least one cationic surfactants； (iv) about 0.1 wt. % to 99.9 wt. % of water； and (v) about 0.01 wt. % to 20 wt. % of at least one cosmetically acceptable excipient, wherein the composition is capable of providing immediate and prolonged benefit to a desired keratin substrate which is hair or skin.
