Hi & Welcome! Search is definitely your friend! I've learned SO much by just reading and researching! I just wanted to say, i don't personally add color to my body butter... but if you did want to color, you'd probably want to add it at the end. Once everything's cooled down, preservative added, fo added... then color! Even just for yourself, you'll want to use real preservatives. I make stuff for myself, and family, and I got a few different preservatives to use in products. I really like Germall Plus