Essential oils can have different viscosity than fragrance oils as they are made from natural ingredients, while fragrance oils mainly contain synthetic components. As natural oils tend to be more viscous, we recommend using them at a lower ratio.
If you are looking to make a candle using essential oils, we advise testing your candles with 6-8% oil, while 15% would be a good starting point for your diffusers, subject to any IFRA or CLP restrictions.
If you prefer fragrance oils, you can start testing your candles with 8-10% but you can add up to 14% in some plant waxes, and our recommended diffuser ratio is 15-20% subject to any IFRA or CLP restrictions.
Please always check the IFRA conformity certificate on the product page for each essential oil or fragrance oil, as all oils have maximum permitted percentages for candles, diffusers and rom sprays under IFRA/CLP guidelines.
For concentrated fragrance oils, you can use a lower percentage of oil and still get excellent cold and hot throw. Depending on your wax, our recommended ratio is 3-5% for candles, whilst with diffusers we would advise you to start testing with 8-10%.