Dear Sirs,
I'm a PhD in Chemistry, my specialization is surface and organic chemistry. I have huge general experience in chemistry (20 years +) and very broad knowledge in this area.
I worked on many similar projects and I have broad experience in cleaners, shampoos end similar products. Please check the feedback from the former employers (https://www.freelancer.com/u/tomwt.html). I'm an expert in surface active agents (surfactants) which are the main ingredients of shampoos. I can help you to get the formula of the shampp without real reverse engineering, just based on the labels and my experience.
Please contact me over chat at freelancer.com to discuss your requirements and expectations.
best regards