Bio Clean: Eco Friendly Hard Water Stain Remover (40oz Large). Pack of 2

Highly recommend this product. It works better, lime, silver, glass, top stoves, sinks and showers. I have had a house cleaning business for over 30 years and this is the best product that I have come across so far. It has a delightful smell, no harsh chemicals and it actually works better than the other products that are harsh And smell bad.

Found a solution to get deodorant stains out of T-shirts, I put some of this on my shirts with a little baking soda and peroxide through them all into the washing machine and shirts I haven’t worn and had in a box to throw away or now hanging in my closet, and I am wearing them again! I did do some light scrubbing and allow them to soak. When I put them in the washing machine, I did the longest cycle I could with a pre-wash and permanent pro setting. Because I was not sure if the stains came out I hung everything to air dry I even had a couple black bras that were so stained. I was too embarrassed to wear them and they came out perfectly clean and no longer hard and crusty! This was my own test. I figured I was going to throw everything away anyway, so it was worth a shot.

An amazing product. I was skeptical it arrived and I cleaned the shower glass effortlessly. Applied the cleaner with a damp wash cloth, could instantly tell it was removing the soap scum and hard water stains from the glass. Rinsed and it was completely clean and clear. Simply amazing.

This is a regular staple in my cleaning bag, we deal with a lot of hard water build-up and this does a wonderful job consistently and safely on all of my clients' surfaces

Product really works! I had a fiberglass acrylic hard water stained shower floor that I tried comet, Brillo pads, baking soda, vinegar, boiled water, easy off oven cleaner just about every YouTube hack I could find and nothing removed the stain even after overnight vinegar and oven cleaner attempts. I ended up using a razor but later I found a more gentle paint scraper from Dollar tree that worked. I found this product through a Reddit cleaning suggestion and decided to give it a shot. It arrived in tact and it has a mild fresh scent with the consistency of toothpaste. For my bathroom sink I found an old toothbrush could easily remove the ring with vigorous scrubbing. For the kitchen sink, I found a palm brush that worked best. For the shower floor a stiff bristle brush worked. I originally wanted to only buy one bottle but the two pack was cheaper. Glad I got the extra bottle because it really works. I recommend wearing goggles or glasses to protect your eyes because it does require vigorous scrubbing but works way better than pink stuff which I also bought and tried out.

This stuff is magic. I used it to clean years of build up off of a shower door. I used the scrubby side of a kitchen sponge and the hard water spots washed right off. I didn't even have to scrub very hard. From now on, this will be in my arsenal of cleaning supplies.

I like this stuff because it does actually help with the hard water stains on my glass shower doors. However, it does not help much for hard water stain buildup. It's basically best at preventing it, not clearing it up.Being "eco-friendly" you would think it was safe. The only warning on the bottle is not to get it in your eye. However, it absolutely destroys my hands. This is 3 days later and it's still peeling off. Makes me wonder how "eco-friendly" and "nontoxic" it actually is.

Used on our car that had sat by hard water sprinklers for a month. I didn’t realize it was a problem until I couldn’t see out my windshield and a car wash wouldn’t clean it!Found this stuff and used it tonight and it came off SO EASY.It smells like mouth wash, is like a green goop, and feels gritty. We wore gloves and masks and glasses due to the skin and eye burn warnings. We rinsed the car with water, scrubbed green goop all over the windows and windshield and mirrors, and then rinsed and buffed with a microfiber towel. BOOM. Crystal clear glass!The edges of the windows have a tiny layer of hard water, but that’s probably because we didn’t scrub the edges as much, so we will do another round tomorrow to get it real clean.I’m so happy with this product and how quickly and easily it worked! Shipped within a day! I’m so relieved because everyone on Reddit was saying no matter how many chemicals they used they couldn’t remove the hard water off their cars. I’ll have to go suggest this stuff!!10/10