Adding Fragrance to SPF Protect Ultra™ II Cream/Lotion
Question
When adding fragrance to a cream or lotion formulation using `SPF Protect Ultra II`, which requires heating the oil phase, should the fragrance be added to the oil phase before heating, or after the mixture has cooled down? Also, is a separate emulsifier needed specifically for the fragrance when adding it to an already emulsified product?
Answer
Adding Fragrance to SPF Protect Ultra™ II Formula
Yes, you can add fragrance to the SPF Protect Ultra™ II formula. Fragrance is considered part of the oil phase in a formulation.
When to Add Fragrance:
Since the SPF Protect Ultra™ II formula requires heating to dissolve the ingredients into the oil phase, you should add the fragrance after the cream has been fully mixed and cooled down. Adding fragrance while the mixture is hot can degrade the quality of the fragrance.
If you were making a formula that does not involve heating, you could add the fragrance directly to the oil phase before mixing.
Regarding Emulsification:
Fragrance is oil-soluble. When added to an emulsified product like a cream or lotion (which the SPF Protect Ultra™ II formula results in), it integrates into the oil phase of the emulsion. You typically do not need a separate emulsifier specifically for the fragrance itself when adding it to an already emulsified system.
