Bioclean Hard Water Stain Remover 20.3 oz

This stuff works!!!I really just wiped it on with a microfiber cloth and all the water spots wiped off so easily! After trying many products, this has been by far the easiest to use and doesn’t have a strong chemical smell either! Highly recommend to anyone dealing with hard water stains!

Just received it and had to try immediately. We just moved into a house with a well, and there are hard water stains in the tub. I put a little of the cream on a rag and spread it on the stain. With very little scrubbing, the stain just disappeared. You should definitely work in a well-ventilated area - we do not have a window in the bathroom so I had the fan on. I am very impressed and would definitely recommend it.

Had been using this since 2 years. Not very effective on bathroom glass door but works good on other surfaces. Helps to clean the hard water stains to some extent. Easy to apply on the surface. Smells good and gentle on hands effective for almost two weeks good quality.

I rarely leave reviews , but this product deserves one. The water at the NJ shore is terrible for water spots. If you have a glass shower enclosure it looks horrible unless it's completely dried after every use. I have tried numerous other products, used heavy duty vinegar with a razor blade, you name it I've done it. This stuff has me sold, easy to apply and remove. Highly recommend. Did left door of shower and did not touch right one. Pictures don't lie

This product took off 20 years of hard water stains on my glass shower doors. I had to do three treatments, but they look brand new. You definitely need to use a drill with a bristle brush to clean them great product!!

NOT A BAD PRODUCT.....It just did not do the wonders for my shower doors as I so deeply believed it would. The review that I read gave it such a powerful endorsement, with such praise, I was certain that it would ERASE the HARD WATER SETTLEMENT on the glass. It did not do that for me. Our shower is less than a year old. We spent the money to have to whole thing done. I am not saying that this product is not good. It works well on my ceramic stove "top", and the face bowl, but I am still shopping for a professional product and applicator tool to remove the hard water soap-scum stains.

I tied the pink paste stuff, vinegar, etc - this was the only thing that really crushed the hard water stains on my shower glass. Smells night and left it looking really clean. The price is great too!

Oh man, I loved this hard water stain remover for my eco cleaning business until I ran the ingredients list through ChatGPT. Not eco friendly at all, with ingredients they are banned in many places. This is the breakdown:1. LAS Complex (CAS# 27176-87-0)This refers to Linear Alkylbenzene Sulfonate, a synthetic surfactant commonly used in detergents and cleaning products.• Toxicity: Not acutely toxic in small quantities but can be irritating to skin, eyes, and respiratory system—especially in concentrated form or if inhaled as dust.• Environmental impact: Moderately toxic to aquatic life.• Use with care: Gloves and good ventilation are wise.2. Surfactant (CAS# 9016-45-9)This is Nonylphenol Ethoxylate, a surfactant banned or restricted in many countries.• Toxicity: Endocrine disruptor—can mimic estrogen and interfere with hormones.• Bioaccumulation: Persistent in the environment and toxic to aquatic organisms.• Use with caution: Many companies are phasing it out due to environmental and health risks. Best to avoid if possible.3. Silica Flour (CAS# 14808-60-7)This is crystalline silica, found in quartz and many industrial powders.• Toxicity: Very hazardous when inhaled as fine dust—linked to silicosis, a serious lung disease, and classified as a Group 1 carcinogen by IARC.• Safe only if contained: If it’s not airborne, it’s less risky—but avoid inhaling dust at all costs.Summary of concerns• Nonylphenol ethoxylate (CAS# 9016-45-9): Highest concern—disrupts hormones and is banned in many places. Avoid when possible.• Crystalline silica (CAS# 14808-60-7): Serious inhalation hazard—only safe with protective gear and dust controls.• LAS (CAS# 27176-87-0): Less alarming but still a skin/eye irritant and aquatic toxin.So, super effective at removing stains, bad for Mother Earth and you. :(