Biokleen Bac-Out Enzyme Stain & Odor Remover – 128 Ounces – Destroys Stains & Odors Safely, for Pet Stains, Laundry, Diapers, Wine, Carpets, & More, Eco-Friendly, Non-Toxic
$34.98
Price: $34.98
(as of Sep 18, 2025 01:09:20 UTC – Details)
From the brand
At Biokleen, we’ve built our legacy on highly effective cleaning products that don’t use—and don’t need—toxic chemicals. Initially founded to make plant-based, non-caustic cleaners for professional services and janitors, we bring those same powerful formulas to families and homes across America today.
Bac-Out Stain & Odor Remover
Concentrated Laundry Liquids
Pet
Is Discontinued By Manufacturer : No
Product Dimensions : 7 x 12 x 7 inches; 0.01 ounces
Item model number : B00034
Date First Available : April 6, 2011
Manufacturer : Weiman
ASIN : B0061VZQWO
Best Sellers Rank: #3,112 in Health & Household (See Top 100 in Health & Household) #27 in Laundry Stain Removers
Customer Reviews: 4.6 4.6 out of 5 stars 10,198 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
STAIN AND ODOR REMOVER: Bac-Out safely works wonders on pet accidents, wine spills on carpets and couches, cloth diapers and pails, laundry, disposals, garbage cans and much more.
PREFERRED BY PROFFESSIONALS: Bac-Out is the preferred choice of commercial carpet cleaners nationwide.
BIO ACTIVE FORMULA: A unique blend of live enzyme cultures breakdown and absorb organic material. It’s a more natural way to remove buildup and stinky odors.
PLANT BASED CLEANER: Bac-Out uses a plant-based, eco-friendly solution with no artificial fragrances or dyes. Our products never contain phosphates, chlorine, ammonia, or brighteners.
MADE IN THE USA: We use biodegradable ingredients, never test on animals, and are manufactured in the USA with US and imported parts
Customers say
Customers find this enzyme cleaner effective at removing stains and odors, particularly animal smells, and appreciate its safety for both humans and pets. The product receives positive feedback for its cleaning power, with one customer noting it works exceptionally well on bio messes, while another mentions it’s particularly good for cloth diapers. They praise its effectiveness in laundry and general cleaning, and consider it good value for money, with one noting it works well at half the cost of specialty products for dog urine.
9 reviews for Biokleen Bac-Out Enzyme Stain & Odor Remover – 128 Ounces – Destroys Stains & Odors Safely, for Pet Stains, Laundry, Diapers, Wine, Carpets, & More, Eco-Friendly, Non-Toxic
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$34.98
A. Bohn –
I like this stuff! Love the clean, lime peel scent.
Good for clearing cat urine stench. Also good for infrequent cleaning of my stinky, sweaty yoga shred mat in summer. I usually use a gentle lavender cleaner made for yoga mats, but a good dose of this got it pristine smelling. I’m willing to chance infrequent mat cleanings with this as needed in future (wipe the yoga mat thoroughly with water afterwards. I’m not sure this stuff is meant for your skin. I had no reaction and my skin is somewhat sensitive, just be safe)I’m extremely sensitive to smells, though I enjoy good smells, high quality perfumes, etc. I detest chemical air fresheners, most scented candles, glade plug-ins, etc. Febreeze is just foul and they all give me toxic allergic reactions.My 20 year old, arthritic kitty could no longer get into her special enclosed litter box that I set up for her in my upstairs bedroom suite where she mostly stayed. She ended up using puppy pads outside the box for the most part.1.5 years of ammonia stink, leaks onto my 112 year old fir wood floor, and puppy pads, bless her. She did her best, my little angel. She passed two weeks ago (and my other kitty manages to use the litter boxes in the basement). So with great relief, I removed the whole litterbox setup from upstairs.During the dotage of two kitties, who have both since passed, everytime I opened the door to upstairs, the stink was there, lingering, stressful, and I now realize, physically depressing. I realize I dreaded going upstairs. But my kitties enjoyed their lives and I loved them, so we did our best, using countless puppy pads (get your puppy pads at Sam’s Club: 120 pads for about $16. Significantly cheaper than anywhere else), expensive electric air filters, and gallons and gallons of enzymatic and oxy cleaners.I used to use Natures Miracle by the gallon in the red bottle. It worked on cat urine, but left behind a very unnatural, lung piercing odor that actually made me sick.I switched to Natures Miracle Oxy orange scented cleaner. I don’t think it worked as thoroughly on the urine, but it helped a lot and I could tolerate the scent. It had a more natural, fresh scent. I bought gallons and gallons of this.Every time I got a new bottle, I kept the aluminum seal on and carefully pierced it maybe 10 times times with a pin, so I could generously sprinkle it on messes, but not waste it by pouring it all out at once. This works really well.So after removing her box the final time, I drenched the wood floor of the litterbox alcove with a half gallon of N.M. Oxy orange and cleaned the wood stairs and everything with the Oxy cleaner.No more stink wafting out when I opened the door to upstairs!BUT still a faint pee pee scent when I went into the alcove. So I ordered this Biokleen lime enzymatic cleaner.It has a strong but pure lime peel scent when you first pour it out. Nothing chemical, nothing offensive to me. Just a clear, clean, gratifying scent that goes away once it dries. And it takes the pee smell with it!I sprinkled about a third gallon onto the 6′ x 6′ area of wood floor, thoroughly wet a Swiffer pad with the Biokleen and scrubbed it into the cracks in floor that had become darkened with pee pee leaks. I kept pouring more on the bad spots to keep the floor wet for several hours. I poured more into those cracks several times over the next couple days. Used over half gallon in the end. My old floors are pretty rustic, and had already been damaged by the pee, so I was willing to risk some minor additional damage to floor. It was worth it to me to get the odor out. Biokleen left a sheen on the wood floor and in the close up picture, you can see the dark areas. Pee made them dark first, and I really dont know if the Biokleen made them any worse, but today, the pee odor is GONE, simply gone. Yes.The Biokleen is good value too, compared to any of the Natures Miracle or other products marketed to pet owners.One more note, I used it on my gel foam mattress topper where my remaining kitty peed, (maybe commenting on his sister’s death). The pee scent is gone, but a fake limey scent lingers. Doesn’t smell as clean on mattress topper as does on other surfaces. It may not be completely dry yet, so I’m turning it over and keeping fans on it during day.
Sean Bozarth –
Smells Good, Cleans DeepâMy Go-To Enzyme Cleaner
Iâve been using the 128âoz Biokleen BacâOut Enzyme Stain & Odor Remover for a few months now, and hereâs my take from real-life use:⸻â What I Love⢠Effective on tough stains and odorsIt tackled old pet stains on my carpet and even wine drips on my couch. After letting it sit, the spots and smells disappeared without me having to scrub madly  .⢠Safe and eco-friendlyNo harsh chemicalsâplant-based, biodegradable formula with live enzymes. Itâs certified by Green Seal for safer cleaning . Great for a pet-filled and kid-friendly home.⢠Fresh, subtle scentThe lavender-lime scent is mild and pleasantâno chemical bleach smell. Even better: it disappears quickly, leaving things smelling neutral .⢠Multipurpose cleaningIâve used it inside my washing machine for sweaty gym clothes, on carpet spills, upchuck from my cat, and even diaper stains. Itâs tackled them all successfully .⸻â ï¸ What to Know Before You Buy⢠Use enough and let it workYou need to saturate the stain and let the enzymes dwell for at least 10 minutesâlonger for deeper-set messes. Wiping it too soon cuts effectiveness  .⢠Big jug, big spaceThe 128-oz bottle is a bit bulky, so I ended up transferring some into a smaller spray bottle for spot cleaning convenience .⢠Some shipping issuesA few buyers mentioned leaks during delivery. Mine arrived okay, but worth knowing if your bottle comes via mail .⸻ð§ Final VerdictIf youâre dealing with organic stainsâlike pet mess, food, wine, or workout clothesâand want a safer, eco-friendly option, this formulation really delivers. Just use it as directed (saturate and wait), and be aware of the bottleâs size.In short: powerful, plant-based enzyme cleaner that works across multiple mess typesâjust give it a bit of space to work, and maybe prep a spray bottle for ease of use.
fg –
Best ever.
I have purchased countless jugs of Bac-Out, and it is the only product I ever use on my carpet. There are zero toxic fumes, and the stains come out very nicely. Once you do the initial wipe, the key is to use a blotting method to get the stain out completely. If you aggressively rub hardcore stains (e.g., hairballs) to manually remove the whole stain, you will waste a lot of product unnecessarily. I would recommend just spraying to saturate the spot, setting some folded paper towels on the spot, and then setting a heavy object on the paper towels. This product also works great with blacklights if you need to locate and eliminate the source of a smell.
Karel –
Best product for cleaning Iâve used.
Great stuff. I used to purchase it in the form of drain un-clogger and cleanser and I liked that it was biological not chemical. Now in the form of cleaner agent it is effective and removes odors if any. Again, I like the biological and it does not damage anything.
Karen G –
Lime is a great scent and good at removing odors
Great scent and definitely a must with a senior chihuahua. Gets stains and urine odors out of my dog blankets-I spray it on directly as soon as I can, and also use the liquid in the washing machine. Rather expensive but works better than vinegar or other cleaning agents.
Keith Robertson –
Worth twice the price
Look for no other carpet cleaner. I add this to the red devil carpet cleaner and it works amazing. It has saved our carpets from the geriatric cat that no longer uses the cat box; takes the stains out and the smell–will continue to buy.
Reeniebeany –
Great for cleaning lots of things, no horrible odor.
Got some to help someone clean up after a rodent infestation.Roll of paper towels and we were on our way.Cleaned things up and not toxic to spray around her pet guinea pig.I also soak rags in the washer with it and it helps keep the washer clean of the notorious “front loader odor”.My DH used it on a car part that another brand enzyme didn’t touch.My go to for cat barf on the carpet….
Rob.b. –
I never thought I’d find something to get the smell of cat pee out of my leather couch. Totally worth the money. I was nervous because our couches were expensive but I will buy again and it smells good.
lorna –
This stuff is amazing. I have a hallway that was targeted by both my cats and dogs. I tried everything to get rid of the smell. Spent an absolute fortune. I saw this, although I did think it pricey, I thought why not. Best decision ever made. I put it in a spray bottle and sprayed it neat on the floor. Saturated it. Left it sit for a bit then blotted it with a damp mop. Sprayed it again for good measure and just left it this time. I’m absolutely delighted to say that the foosty, dirty, peepee smell is gone. I no longer want to gag and cry simultaneously anymore. Beyond happy.