Vicky/Ky told me to add the fragrance when the wax was hot...about 160 degrees because the wax and fragrance can bond. Then wait until it is slushy then pour into the container. It worked and I had a awesome scent throw. Before, I was waiting until the temp. was lower, then add the fragrance and I never had a good scent throw. Stick with your supplier because they can help you. But, only if you use their products. They can't help if they haven't used others products.