Revlon Professional Restart recovery anti-split ends sealing drops

My hair is quite brittle and very dry. These sealing drops seemed to provide some nourishment, yet this seemed to be primarily immediately after it was applied rather than having a long-lasting effect. The idea behind them sounds very attractive but it is difficult to see any significant or even notable impact on my hair. It seemed to work best when in conjunction with the rest of the range, that is, the shampoo, conditioner and occasionally the purple drops, but the more nourishing effects could also be attributed to the other products in this Revlon range. Overall, decent but unsure as to the actual effect on my hair.