Spirulina is derived from freshwater algae, smells a little ocean-ish, like seaweed. Using it to color cold process soap will give you a rustic more olive green color. I was afraid that the fishy scent will effect the final smell of the soap, and since I'm using natural colorant I thought I might as well use essential oil to scent. Have you heard of 4 thieves? It's a blend consists of lemon, eucalyptus, rosemary, cinnamon, and clove. There are many variations, you can mix up to your taste. I also added some grapefruit to sweetened it up a little. 4 thieves oil has a very interesting story if you want to read: Thieves Oil History This blend is said to be highly antibacterial, antiviral and anti-infectious, should be great for soap!
The mold I used to make this soap is FREE. It is the empty carton of coconut cream I use for cooking and soap making.
It is a bit hard to unmold, I just teared it up piece by piece. Can I call this recycling too?!
I hope this green won't turn brown!