That happens to me sometimes, too. It's likely a reaction between the gel and your leave in conditioner. You can test to see if your leave in condishes and gels are compatible by squeezing a bit of the conditioner and a bit of the gel into the palm of your hand. If the conditioner balls up when you mix them, then you know that you shouldn't use the products together. If they blend well and look nice and smooth and creamy, then you know that you have a good mix. Hth!