Hard Water Shampoo & Conditioner Formulation

I want complete, lab-ready formulas for a shampoo and a matching conditioner that perform flawlessly in hard-water environments rich in calcium and magnesium. Both products must: • strip away mineral buildup without leaving the hair dull, • hydrate and moisturise so strands feel soft instead of squeaky, and • reinforce the fibre to cut down on breakage. To meet those goals, please weave in a balanced mix of natural extracts, lightweight silicones, and gentle sulfate-free surfactants. I’m open to your choice of chelating agents, conditioning polymers, and preservation systems as long as they support the claims above and comply with EU & US cosmetic regulations. Deliverables • Two ingredient lists with exact percentages, processing steps, and pH/viscosity targets • Recommendations for chelator levels that tackle Ca²⁺/Mg²⁺ deposits • Pilot-batch guidance (1 kg scale) plus notes on scalability to 200 kg • Stability and microbial challenge test protocols, including acceptance criteria • Suggested marketing claims backed by your formulation rationale I’ll review the draft, request tweaks if needed, and then sign off once all lab data and manufacturable instructions are in place. Looking forward to a science-driven, consumer-pleasing pair of formulas.