Does this also work on soap scum buildup?

I'm not sure, but I can guarantee it works. And what we love the most is that for many days, the water on your shower beads up. But our shower has never gone back to the scum and cloudiness it once had. My daughters shower was worse than ours and she is hooked too. The first time you need to rub hard and possibly repeat over a couple of times to get the glass clean. Then from there on, it's simple to stay clean. I don't know anything about this company. I was researching for an answer and after about 2.5 hours, I found this product and read the ratings. I'm sold. We have used it for about 7 months....will not ever use any other product.

Has anyone tried CLR bio-clean on metal sinks & had any success? I've tried at least 10 cleaners incl. vinegar, lemon/baking soda, etc.

Hello Beth, I have a 12 yr. old stainless steel sink and hard water. I have always cleaned the sink with dish liquid and a teflon-safe scrubbing sponge and it has done a good job except for a few rust stains (left behind by old utensils). After receiving notification of your question, I decided to test the CLR bio-clean on my sink. Results: no stains! So my answer is "yes, it works". Hope this test is helpful to you! Marilyn

Has anyone used this on tile to remove hard water buildup in the grout lines?

I used this to remove acid water spots on my car windows and it worked great. I does take some elbow grease in rubbing to remove spots but works great and has a pleasant smell.

What's the difference between crl bio clean and the bio clean in the green bottle? Which one works better?

I don’t know about the green bottle but the CRLaurance works great.

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💧 Say goodbye to stains, hello to shine—your surfaces deserve the best!

RAPID RUST RESCUE - Targets and removes stage one corrosion quickly, saving your fixtures from long-term damage.
COMPACT CONVENIENT - 16 oz bottle size designed for easy handling and long-lasting use—never run out mid-clean.
CRYSTAL CLEAR EVERY TIME - Effortlessly erases water, mineral stains, rust & soap scum for spotless glass and surfaces.
VERSATILE SURFACE SAVIOR - Perfectly safe and effective on shower doors, tile, fiberglass, chrome, porcelain, and stainless steel.
PROFESSIONAL GRADE FORMULA - Trusted by experts for a streak-free, showroom shine that elevates your space instantly.

CRL Bio-Clean Water Stain Remover is a 16 oz professional-grade cleaner that effectively removes water spots, mineral deposits, rust, and soap scum from a wide range of surfaces including glass, tile, fiberglass, chrome, porcelain, and stainless steel. It also quickly tackles early-stage corrosion, ensuring your fixtures stay pristine and protected.

Manufacturer	C.R. Laurence
Item model number	WSR1
Product Dimensions	50.8 x 50.8 x 50.8 cm; 453.59 g
ASIN	B00494PJLS

CRL Bio-Clean Water Stain Remover - 16 oz Bottle

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