-
Anionic/Amphoteric/Non-Ionic Ratios
I’ve been working on a sulfate-free shampoo formula, and I’ve settled on something with 15% active surfactants, half of those (7.5% ASM) being anionic, the other half amphoteric. It’s mild, foams well, and is easy to thicken with salt; however, I wonder if there is room for optimization. I could save money by substituting some non-ionic (say decyl glucoside) for my amphoteric, or just use more anionic surfactants.
My question is this: Is there any generally recommended ratios for anionic vs. amphoteric vs. non-ionics? I’ve read some general guidelines for shampoo ASM, which is why I’ve targetted 15% total ASM. I have not seen any similar recommendation for anionic ratios. Any advice is appreciated.
-
1 Reply
-
One of the interesting aspects of cosmetics formulation is the lack of hard and fast rules in what constitutes a standard formula thus there is no fixed ratio this to that. It may be you use twice as much of one material than usual and you have a world beater product (most likely you won’t but you see the idea).
The thing to do is try it and see - you will learn a lot on the way.
Log in to reply.