Bio Clean Hard Water Stain Remover 40 oz. (20.3 oz.)

I still can not get the hard water stains off the bathroom glass showers and I even use a drill with a sponge to try and do a better job, but it doesnt quite do the job. Disappointed, and not sure what to try next.

I heard about this product on a Facebook cleaning ladies group page. They raved at how this product easily removes hard water stains, especially on shower doors. Since my shower door is a huge problem to clean, I decided to give it a try. When I received it, I brought it into my bathroom, dampened a cleaning cloth and squirted a small amount on the cloth. With no effort at all, I rubbed the product on my shower glass and took off the hard water stains. I had my entire shower door cleaned in less than two minutes. I was truly amazed at the cleaning power. I also tried on my chrome bathroom faucets and it also made them shine. I did not use gloves. The product did not even burn my sensitive skin. Unbelievable but true. I highly recommend!

This stuff is the truth! I cleaned a really yellow shower and bath. It’s now white!

We have very hard water where we live, and I had tried several things to remove the hard water spots from my glass shower door and side wall. The house is about 20 years old, though we have only been here 6 years, the previous tenants werent exactly meticulous about cleaning. Tilex, vinegar, etc., nothing worked. The vinegar works fine if you can soak an item, but spraying it on a vertical surface was just not effective. Finally tried this stuff, and my shower looks about 95% clear, with a bonus that the water sheets off of it nicely now. It does take some elbow grease, but I did it in stages over a couple days and it really wasnt that bad. I took off a star because it really didnt touch the gross yellow crusty build up at the base of the door that no amount of scrubbing or product of any kind seems to touch. I may try a scrub brush drill attachment if I can find one, and see if that works.

Moved into an apartment with already prominent hard water stains and tried lots of different hard water cleansers, sprays, and scrubs to try to improve it. Was recommended this by an Instagram Reel I think and I’ll be continuing to buy and use this product! I used a soft dish wand sponge and this product to gently scrub in circles on my glass doors. I didn’t use a lot of pressure, just enough to spread and scrub a bit. When I rinsed, I was so shocked to see that my glass was transparent (when wet). That had never happened, it would always fog up and show the water marks. While dry, you can still faintly see the marks, but I think that’s just due to my low pressure or just being the first time use. The improvement is so much that I’ll recommend this and continue to buy.

I really did not expect this product to be this amazing. It was just delivered and I thought I would give it a quick try on these heavily crusted windows. It goes on like a paste and polishes off easily. It removed ALL the calcium deposits within minutes. You also only need to use a small amount. You can see how badly stained the lower window was by comparing it to the one above that I have not cleaned yet. This is the best value for money I have found on Amazon.

The only thing that has taken the hard water stains off of my shower door! I’ve tried it all and this was almost instant with minimal elbow grease involved. Amazing product. Will be looking into the protectant they have to prevent these stains in the future.

I am impressed at how fast and how well this works. Prior to this, nothing at all worked. My glass top stove looks amazing!

This is a weird-smelling cleaning compound that did not actually clean my bathtub the way I had hoped it would. However, I used it on my ceramic cook-top and it was amazing! All spills came right up, and the surface is shiny. I am really fussy about the cook-top, so I was pleased to find something that keeps it so nice. I guess Ill just use Comet in the bathtub.

I don’t often write reviews. Great Product