I have long, straight and very knotty hair, and I use this in the shower to comb out conditioner/hair treatments. It does a good job of detangling wet, treated hair without causing any breakages, but I found that it does cause breakages and snags on dry hair.
I use this to comb my Olaplaex/other hair masks through my hair and it's the only comb that works without tangling my hair in the process. I have quite thin hair but a lot of it so combing while it's wet or has product in it is never easy.
I use this every single time I wash my hair and now on my children’s hair as well. It glides through easily and doesn’t pull. I have repurchased multiple times as I’ve accidentally dropped it and some teeth have snapped off. Highly recommend.