Bioclean Hard Water Stain Remover 20.3 oz

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.

The BEST glass cleaner we’ve ever tried! We bought this to try to remove hard mineral water stains on the bottom of our glass shower panels. Not only did it remove the stains and make the glass sparkle, it helps repel the steamy shower fog from the glass. Shared it with our cleaning lady so she could pass it along to her customers who need it. I’m a big fan and will keep on hand as well as be a repeat buyer!

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.

This is magical. It took hard water stains off the sink, there front of my dishwasher and the bathtubs. I let it sit over night on the bad parts and scrubbed a little and they were gone. Very impressive and worth every oenny

This is the only product that has taken off the calcium buildup on my shower door. I had tried many products and none of them worked. This product has very little smell and is thick so it stayed on the door and I didn’t feel like I needed a hazmat suit to use it. The price was a little more than I expected but it was well worth the price because it WORKED

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 am really amazed at this product. Those hard water stains that only a pumice could remove, came right off. My toilets are sparkling clean and it was very easy. A little goes a long way and start by pouring 1/2 bucket of water in the toilet to empty the water. Highly recommend.

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. :(