What purple color options do you have, and how stable are they?

We offer purple-range options from different source materials, most commonly red radish and purple carrot. These two sources perform differently depending on your processing conditions — they have distinct stability profiles under heat and varying pH levels, and the shade each produces can shift meaningfully in acidic or alkaline environments. There isn't a universally "better" purple option; the right choice depends on your specific formula, your pH range, and how much heat the product goes through. We'd recommend requesting samples of both and running trials in your actual matrix to see which holds up better under your conditions.