@margi - Thanks for your response.
Big companies put oils in shampoos strictly for marketing purposes and to tell a story. The level that is in there is typically 0.1% or lower and it will have minimal impact on the performance. These are “claims” ingredients and it’s very common in the cosmetic industry to include these. The reality is that consumers don’t want to buy products they are told work because of chemically sounding things like Sodium Lauryl Sulfate or Cocamidopropyl Betaine. They want buy products made from Coconut oil and Jojoba oil. These ingredients do not provide any real benefit but consumers think they do. So companies put a tiny splash of an ingredient in the formula, then focus their marketing message on it.
On this forum, I try to cut through the marketing hype and focus on reality & what is provably true.
Lots of people call themselves formulators these days and it’s true anyone can go out, buy chemicals, mix them together and come to believe they are competent formulators. That doesn’t mean they are.
You will get different advice from people who have worked in the cosmetic industry on brands that you can buy from your local grocery store, Target or Walmart.
Back to your specific question…
1. If you like how that surfactant blend works, then that’s great. I’m sure it will be fine. There is no harm in trying. I personally don’t like how they perform and I don’t think they would be generally accepted. The fact that none of the 10 best selling shampoos are based on those surfactants should tell you something.
2. Find a benchmark product already on the market and use it as a starting place. You should have a target product you are trying to emulate. It is much better than starting from scratch.
But this is just my opinion. The only way you’ll know if you’ve made a good formula is to mix it together and see what you think. And if you like it, other people might like it. Many people won’t like it but unless those people were your target customer, that doesn’t matter.
hope that helps