I use skin safe fragrance oils for all my solid perfumes. I made sure that when I bought from a supplier, that these scents were safe for the skin or else I didn't buy them at all. (I learned that from the boards here!) Also, I used a tablespoon (15ml) of base to make 3 5gram containers. For all of them, I used 2 - 3ml of fragrance oil, and I mixed it up well. While I'm waiting for my beeswax to come in, I used a lip balm base, consisting of shea butter, olive oil, beeswax, cocoa butter, and sweet almond oil (I should try some on my lips now that I think about it). After a day of letting the solid perfumes sit, the scents are much more prevalent. The Blackberry Musk and Mango Mandarin have scents to them now, and they are nice. Maybe I just needed them to "rest" for a day. Either way, that's the recipe I used, so I hope this helped.