Clean lime scent. Haven’t got to use it in my home carpet cleaner yet... Many reviews claiming leaking product on arrival and it really does. The detergent screw type lid was tight and there were no cracks or busted plastic- it must be a manufacturing issue that is not sealing the cap well. It needs a pull tab like a bleach jug.My Amazon rep handled the issue politely and I’m looking forward to trying the remaining carpet shampoo from this brand! Why? - I’ve used the BacOut stain/ odor remover as a carpet pre-soak over (ugh..) cat urine stains. Bad ones. Lots of unhappiness from this particular cat... I soaked the areas (ok, drenched them all the way through, but it says to!), did a carpet clean using a little home Hoover carpet cleaner w/ some more BacOut+EOS detergent+a tiny bit of snuggle, did another full strength BacOut soak and then a wand extraction on the really nasty areas- my cleaner has a wand like a shopvac so I got real serious by the baseboards (grumpy cat parents understand my pain)... The smell DISSAPEARED after it was good and dry a couple days later using a fan (drenched remember?).Like to think it really was all the enzymes going to work. Didn’t feel or smell to confident while it was damp- it had a slight mildew/lime scent but it ALL dissipated and left my house and carpet (that I knew was completely ruined) smelling SO FRESH with no lingering cat urine odors.Looking forward to trying this real shampoo by the brand I know really works for my needs. Their website lacks info on their product differences but I’m hoping BacOut for the serious work and this shampoo as a second layer of defense.I bought this product to clean carpets at my parents house. My father is sensitive to chemicals and strong perfume scents, so the fact that this product contains no harsh chemicals and dries scent free was the big attraction. I've used carpet cleaning solutions in the past and they've all been decent, but nothing incredible. This stuff is leaps and bounds better than anything I have ever used to clean carpets with. I used it at full strength to clean high traffic and more heavily stained areas that had been pre treated but still stained. The results are the carpets look fantastic, odors gone, dirt gone, stains gone. I have used it at diluted ratios as well and it still works very well. The citrus scent when first applied to carpets is very pleasing and not overpowering but it quickly fades after time.I'm using a Hoover cleaner and I've found these steps offer the best results. 1. Vacuum 2. Wet carpet with Hot Water 3. Apply cleaning solution. 4. Let it sit for 20-30 minutes and have time to work 5. Rinse, suck out residual water/solution and let dry. You can pay extra attention to heavily stained areas and pull less water/cleaner out so the cleaning solution works to combat the stains.Really, really pleased with the results from this product given that no harsh chemicals are used.The first bottle I bought lasted over two years. This second bottle was priced even better. I love biokleen products and go through the giant back out bottles quickly. This carpet cleaner makes me feel better about not putting other chemicals on the carpet for babies to roll around in. Wish I’d found it sooner.I purchased this product because I wanted a plant-based, natural cleaner, and this brand had very favorable reviews.I just shampooed the carpeted areas of our home yesterday using our Hoover carpet cleaner, and Biokleen brought back pile and life to our carpets. They look and feel great!However, even better, Biokleen is a super stain remover! We have a room which shares a wall with our laundry room, and several years ago, we had water leakage from our washer. I had two different professional carpet cleaners pretreat and then clean the area, but neither did much to remove the stain. So, when preparing to shampoo yesterday, I thought I'd give pretreating that area a try. Crazy ..... but it worked! There is literally no stain there at all, and this was a very set in stain! I'm a very happy customer and 100% sold.If your carpet NEEDS to be cleaned, I would recommend using whatever cleaner comes with your carpet cleaner 1st and then maintain cleanliness with this.I have used this company's products before and they worked great. This product was no exception. The very best part was that it had absolutely no smell. I'm highly sensitive to chemical odors. And this has none!!This stuff takes the cake. Read all the reviews and knew there would be a bit of odor for a bit after as the enzymes were working so I was prepared for that. This stuff is magical! My carpets SMELT AWFUL of dog urine and baby puke. Not only did it clean and remove the awful scents but it also left a light and refreshing citrus scent. SOOO much better than the run of the mill SUPER SCENTED cleaners. I'm scent free with almost everything I use so I was rather frustrated that my carpet cleaner had to be so scented until I found Biokleen! Fan for life! And now I will purchase all my cleaners through them! I already have their laundry soap and concentrated surface spray! I love buying it all in bulk bottles too!Works great with Yes it works. No chemical smell. Very pleased with it :)Worked well. No chemical smell or weird chemical ingredients. Glad to have found this.