CLR Brands® Calcium, Lime & Rust Remover Free & Clear, No Dyes or Fragrances, Gentle Lime and Bathroom Descaler, Removes Hard Water Stains and Rust Deposits, 26 Oz Bottle (Pack of 1)

This product worked well on a resin sink that was laden with deep seated calcium deposits. It removed the calcium without damaging the sink surface.

Greatest soap scum remover for glass shower enclosures!

Work exstemly well to get rid of hard water calcium buildup. If it starts to bubble or foam up a little it will be working. Just make sure to let it sit for a 1-2 minutes for it to work. It doesn't work on everything, such as discolored rings in toilet or tough stains, but if it is from hard water then it is going to be taken care of. Only reason for 4 Stars instead of 5 are because of the following reasons: 1.) Not a fix all 2.) STONG smell 3.) Need to air out space you are using it in

Fantastic product.

Have an open window wear gloves spray away from face and body.\n Let it soak in tub or syncscrub as necessary\n Rinse thoroughly. Excellent cleaning solution.\nFor body and soap scum.

Why did you pick this product vs others?: Removed the rust right away scrubbing lightly with cheap brushes from Amazon. Was not expecting it to work this well. This saved us a huge fine from HOA from the rust our HVAC leak has caused. We have had ac guy out here 5 times in 6 weeks and then it starts leaking overnight and the rust was so embarrassing! It is completely gone after scrubbing lightly for 3 minutes. 😃 so grateful!

I bought this to remove calcium build up in my acrylic shower tub. I followed the instructions on the bottle but did not get the desired result. I'm not sure if I need to keep the stuff on the affected area longer or what. It did remove some of the buildup, but I'd say only 30-40% and I had to figure out other methods to remove it completely. Otherwise, the bottle itself is user friendly and easy to use. The scent of the product has a bit of a sweet smell, which was a little funny to me at first, but I got used to it. It didn't leave any marks or streaks behind, so that was good. I'm giving 3 stars because it did SOMETHING, but did not meet my expectations for a full and easy removal of calcium and mineral buildup. Maybe I'll try the regular original formula and see if that works.

This stuff is no joke. I used it on my shower tiles, and it cut through the buildup like butter. No scrubbing for hours just spray, wait, and wipe. It left my tiles looking like new. Definitely a must-have for hard water areas or anyone tired of fighting soap scum and grime. It’s now a staple in my cleaning cabinet!