Usage:

Candle making: use a very small percentage of fixative compared to your fragrance oil, usually around 1-3%

Alternatively you can premix your desired fragrances with the fixative at a 25:75 ratio and use the mixture as per your desired concentration.

E.g
Fragrance 75ml + fixative 25ml= 100ml Fo

100g Candle @ 6%: use 6g of premixed FO
100ml Diffuser @ 15%: use 15ml of premixed FO