Regardless of the number of different types of EOs called for in a recipe, it's important to only use the specified number of drops in total to match the dilution % you're trying to reach. 5% dilution = 30 drops of EOs (in total) + 1 oz of carrier 2% dilution = 12 drops of EOs (in total) + 1 oz of carrier 1% dilution = 6 drops of EOs (in total) + 1 oz carrier If you prefer tablespoons, just halve the amount of oils like this: 5% dilution = 15 drops of EOs (in total) + 1 tablespoon of carrier 2% dilution = 6 drops of EOs (in total) + 1 tablespoon of carrier 1% dilution = 3 drops of EOs (in total) + 1 tablespoon carrier
For recipes that call for multiple oils, you will want to premix a blend and then count the drops as you use the blend to create the proper dilution. When it comes to blending, there are very few "formulas" and it's really all about finding out what works for YOU and always doing your organoleptic evaluations. When we give you a list of 15 oils that fight cancer in Lesson 10, for example, you don't want to mix all 15 together. A rule of thumb is to limit your blends to 6 oils and try different varieties based off of how your body responds.