I've always been reluctant to buying hair sprays due to all those chemicals in them that can cause hair texture to go dry and cause more damage if used regularly. But then I also realized, the massive damage, hair straighteners and curlers can cause to the hair. So I had to change my mind. Fortunately the products I currently use are great and I don't think I'm going to switch to something else for a long time.
To hold on Curls I use: