I’m a fan of Curlformers and whenever I use them am asked how long the curls they create last. The answer is “Not very long.”
Usually the curls are done within hours of me leaving the house, especially if I set the hair wet, which I no longer do when using Curlformers. I’ve tried using multiple products with the same results. So now I just approach Curlformer styles as a temporary situation.
They do work as a good base for updos though – providing body and large curls to play with.