Volume should never fall flat halfway through the day For volume that lasts use TRESemm 24 Hour Healthy Body Hair Shampoo for fine hair delivering allday body and bounce thats manageable and never weighed down When our hair feels flat we feel flat Avoid the hump and pump up the volume for thick hair by adding our TRESemm 24 Hour Healthy Body Shampoo and Conditioner System to your hair care routine