This streak remover is awesome! Sprayed on, very light scrub, and rinsed. Streaks disappeared like magic.My Box truck was really bad. Sat for about 1 year and wasn't washed in that time. Looks like new. Got many compliments. Highly recommend!!

So glad I found you online. I hired a professional pressure washer company to do my house/gutters/driveway. They did an awesome job until they got to my gutters and their product wasn't cutting it in regard to the black streaks/discoloring. I had ordered your product prior to hiring these guys, with the thought of Doing It Myself, so, I gave them my "Black Streak Remover" to use and they were amazed, me too! My gutters are 23 years old and now look brand new and are 100% white again. When the Pro's left they gave me a discount for introducing them to this product and asked if they could have what was left and wanted to know how to order more! They said this will be their new cleaning product! I have used this on some other "tough" to clean areas around the house also, and it worked like a charm. This is the best product I have ever used! Thanks Bio-Kleen

Best product I have ever used to clean my fiberglass bass boat. Removes all of the marks from pier bumpers, spills, grease, etc.

I have a white horse trailer that had streaks and had turned grey. The dealership I bought it from told me to used Scrubbing Bubbles, which worked but not without a lot of scrubbing and even then some of the grime wouldn't come off. I found Bio Kleen through a google search and after seeing the reviews I was convinced it was worth a try. I was still skeptical when I got it but upon wiping it across the trailers most grimy area once I was SOLD! It took everything off without a lot of scrubbing and did 10x a better job then the other products I've used. One section that took me 2hrs to do with the other stuff and still looked dirty took me 10 minutes with Bio Kleen and it turned out 100% cleaner. I'm so happy I found this product and I will recommend it to anybody I know with trailers. This is the best product out there and even though it's hard to get I still have to give it 5 stars.

In the past I have bought many products that did not live up to what was advertised. Much to my surprise Bio-Kleen Black Streak Remover worked better than I could have imagined. On a Sat morning after I received my order I decided to give it a try on a test area of my 32' race car trailer, before I knew it I had cleaned one complete side in less than 1 hr. Never in my wildest dreams did I think the product would have worked so well. Thank you Bio-Kleen ... I will without a doubt be ordering some of your other products in the future.