Niacinamide pH stability
I've seen a lot of conflicting information about the pH stability of Niacinamide. Some sources say it can tolerate pH as low as 3 and others say not to go under pH 6. Do any of you have any experience working with Niacinamide or know what the lowest pH it can tolerate before converting to Nicotinic Acid. I'd like to include it in a formula with glycolic and lactic acid.