Let me tell you something
From the LoI it looks that it is a pretty basic non conditioning shampoo that most people would not like. If you give it to someone to compare it with another shampoo they would like that other shampoo. And all the chemists here know better than me that how this shampoo will be in cleaning, foaming and conditioning and no one would copy it. So don’t be afraid of sharing the percentage
Because without percentage people don’t know how much of an ingredient you have added there as perry thought you may be adding to much oil.
If you are adding too much EGDS that will be the cause. Reduce it to 0.5-2%
If you are adding vitamin e or an extract and thinking it is preservative your product may be contaminated and the cause of this problem.