There are a number of fragrance oils to choose from that can add lovely scents to your soap. However, many fragrance oils can alter the color of your soap to a less appealing hue. What can be done about this?
The majority of fragrance oil discoloration is due the oil having notes of vanilla in it. The vanilla naturally darkens most soaps into a shade of brown over time. There are some color stabilizers for melt and pour soap, but it will only delay the browning for a short time. Your best bet is to double-check the ingredients of your fragrance oil to prevent discoloration from happening. For a full article about soap discoloration and solutions, click here:: Best Selling Bramble Berry Fragrance Oils and Discoloration