Non-Acidic, Surface-Safe Hard Water Stain Remover Gel

Users struggle with persistent hard water stains after trying common remedies (baking soda, Dawn) and are hesitant to use acidic solutions due to fear of damaging surfaces (e.g., faucet plating). A specialized, non-acidic, yet highly effective hard water stain remover, perhaps in a gel or thick paste format, could be marketed. Its formulation would dissolve mineral deposits without corroding sensitive finishes, and its consistency would allow it to cling to vertical surfaces for extended contact time, addressing the user's need for a safe and potent solution.