I use natural colorants in my soap, as much as I can. Things like turmeric and paprika can make excellent soap colorants and they are easy to find, economical and have the benefit of being natural (for those of us who prefer that). But some colours are hard to come by in the natural world:…
Flora & Pomona – former Mars Balms blog
cold process – Flora & Pomona
Color Soap Naturally – Testing Herbs and Spices for pH stability – Lovin Soap Studio
Soap – Flora & Pomona
Everything You Need To Know About Colorants - Crafter's Choice
How to Test Natural Colorants in Cold Process Soap (30 Test Samples Revealed)
How to Test Natural Colorants in Cold Process Soap (30 Test Samples Revealed)
All About Natural Colorants
Soap – Flora & Pomona