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Biokleen Bac-Out Pet Stain ...

Biokleen Bac-Out Pet Stain & Odor Remover uses a powerful enzymatic, plant-based formula to safely eliminate pet stains and odors from carpets, upholstery, and fabrics — breaking down organic matter at the source with natural live enzyme cultures and plant-based surfactants. No harsh chemicals. Non-toxic. Eco-friendly. Safe for pets and families. 32 fl oz (946ml). Made by Biokleen, a leader in plant-based cleaning since 1989.

Biokleen Bac-Out Pet Stain & Odor Remover 32 fl oz – Enzymatic Plant-Based Formula, Non-Toxic

  • Enzymatic Formula — live enzyme cultures break down organic matter (urine, feces, vomit) at the molecular level; eliminates odors at the source rather than masking them
  • Plant-Based Ingredients — natural, plant-derived surfactants and enzymes; no harsh chemicals, phosphates, or artificial fragrances
  • Eliminates Pet Odors Permanently — destroys the odor-causing compounds that attract pets back to the same spot
  • Safe for Carpets, Upholstery & Fabrics — use on carpets, rugs, upholstery, clothing, and most washable fabrics
  • Non-Toxic & Eco-Friendly — safe around pets and children when used as directed; no artificial fragrances
  • 32 fl oz (946ml) — ready-to-use spray formula; UPC: 717256001346

How to Use

Blot up as much of the stain as possible before applying. Spray Bac-Out directly onto the stained area until thoroughly saturated. Allow to sit for 5–10 minutes — or longer for set-in stains. Blot with a clean cloth; do not rub, as rubbing can spread the stain. Repeat as needed for stubborn stains or odors. For best results on carpet, place a damp cloth over the treated area and allow to dry slowly to give the enzymes maximum contact time. Always test on an inconspicuous area first before treating visible surfaces.

About Biokleen

Biokleen has been a leader in plant-based, eco-friendly cleaning products since 1989 — formulating effective cleaners without harsh chemicals, artificial fragrances, or unnecessary additives. Bac-Out is Biokleen's flagship enzymatic cleaner, trusted by pet owners, families, and cleaning professionals for its ability to eliminate organic stains and odors at the molecular level. All Biokleen products are made with plant-based ingredients, are non-toxic, and are safe for use around pets and children when used as directed. Biokleen is committed to sustainability and environmental responsibility in every product they make.

Frequently Asked Questions

How does Biokleen Bac-Out work on pet stains?
Live enzyme cultures break down organic compounds (urine, feces, vomit) at the molecular level — permanently eliminating odors at the source, not masking them. 32 fl oz.

Is Biokleen Bac-Out safe for pets and children?
Yes — plant-based, non-toxic formula. No harsh chemicals, phosphates, or artificial fragrances. Safe around pets and children when used as directed.

Can I use it on carpets and upholstery?
Yes — safe and effective on carpets, rugs, upholstery, clothing, and most washable fabrics. Test on an inconspicuous area first. Spray, saturate, let sit, then blot.

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Learn more at biokleenhome.com.

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V Tomkovicz
Works as advertised. Excellent.

We have light carpet in bedroom. Dog had accidents there several times. Carper newer and high quality. Yellow urine stains would not disappear no matter what I tried including professional carpet cleaners. I had to apply this product a few times letting it sit for hours before wetting areas with rinse water and vacuuming up moisture with wet vac. Stains are gone, completely, and are not coming back. Odors gone as well. I am quite happy and surprised at the results.

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Ashley
Very impressive!

I did a small test spot in the first photo (Inside the triangle.) on this area rug that is right in our entryway and the first thing that everyone steps on. The second photo is just spraying over it, waiting a few minutes and blotting out with paper towel.

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Amber
So glad I got this product worked AMAZINGLY

This worked amazingly. This spring we had stains pop up out of no where on our downstairs carpet. I was really surprised because we have a rug shampooer and use it when ever something happens to the carpet. These stains must have been laying dormant in the carpet and the extra moisture this spring brought them to the surface. This has never happened before and I tried several product and nothing was working. I read the reviews and figured I would give this product a try. I sprayed it on all the stains and let it sit for the day and then took the rug shampooer with only water in the tank and went over the stains. I was so amazed, there are a few that I will need to go over again but for the most part it worked so well. I bought another bottle that night to do other areas of my house. It has been 2 weeks since I did it and nothing has come back. We didn't have an issues with odor so I cannot comment on that but it did get the stains out of the rug that had been laying dormant for years. I have been telling everyone about this product and showing the before and after pictures

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Adena
And the angels sang

Because I watch way too many videos of people cleaning after hoarders, I knew going into cleaning this one room in my house, that an enzyme cleaner was a must.The short story (that is SO MUCH DRAMA in real life), is that our family opened our house up to an elderly gentleman who was in a difficult situation financially. We found out why - turns out some people can present very clean and tidy but live very much otherwise. He has chosen new living accommodations that suit his desires.But then there’s still the mess.Initially I thought we’d just have to chuck the carpet because LOOK AT IT, but I thought, ok, if Clean With Beax and Not the Worst Cleaner (both IG pages you have to follow if you enjoy watching people turn DISGUSTING, STOMACH-TURNING spaces into habitable, and {dare-I-say?} beautiful living spaces again) have taught me anything, it’s that I’ve got to give enzyme cleaners a try.So I bought the cheapest one with high ratings. *she’s a thrifty girly*ERRR MAH LERRRRD - I am so happy. Not only is the old man smell gradually dissipating from the room (wish I could share the smell of Bengay and sadness, but alas), but the evidence of his dirty shoe shuffle across the floor is almost completely gone. There is ONE tiny spot in the room that will need a little extra TLC, but I have every confidence that another round of biokleen won’t let me down. That picture represents ONE SWIPE with my shampoo vac.I am not sponsored, I’m not getting a free bottle of biokleen out of this - I just love a good before-and-after. The stuff works! If you’ve got pets or smelly people, I highly recommend.Oh, and I like the lime scent.

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LivC
THIS ACTUALLY WORKS

I can not say enough good things about Biokleen! I have two dogs, a cat and a toddler and this is the only cleaner I use for their messes. I've tried a lot of similar products that either didn't work, were highly fragranced or contained a bunch of harsh chemicals that I didn't want to use around my pets and child. Not Biokleen!*The enzyme-formula actually removes stains and odors 💯*The lime scent is pretty pleasant in terms of a cleaner and more importantly, naturally-derived*Gentle, non-damaging formula leaves fabrics/surfaces in-tact*Eco-Friendly, safe ingredients! I don;t have to have the pets or family "evacuate" the area while I clean.

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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.

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Anonymous
Excellent product

Excellent product.

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Michelle Ventura
And the Stench is gone!

Best product ever! Use it on everything even laundry gets any/all stains and smells eliminated.Most definitely recommend any of their products grat company. Thank you.

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Grace
Powerful clean

Amazing! I’ve been using about 2tbl of this in my cloth diaper soak and the stains and any smell completely disappears!

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Donna Jeanne Pursell
You need thissss

I don’t know how I lived 39 years of my life without this stuff. It works so good! My stained sofa cushions? Look brand new. Pee on my sheets? Stank gone. Grimey floors? Clean. You need this.

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Alisa Giallombardo
Best cleaning product I’ve ever bought

So happy with this product I could cry tears of joy. I thought my carpets were ruined. This saved my carpets and my sanity. I also ran it thru my washing machine for a clean cycle and now my clothes are coming out smelling like NOTHING which was absolutely the goal (I use no scent detergent sheets). Immediate rebuy.

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KD4
Works amazingly well for milk…spilled in the car

This stuff works. There was a sippy cup of milk spilled in the back seat of our car. I tried disinfectants, baking soda, various foam and spray upholstery and carpet cleaners, but the smell was still terrible. A small bottle of this magic and a couple of passes with the carpet cleaner and the rancid smell was gone. Amazing value for money when it comes to milk related spills and smells.

j
j. taylor
Good price and works very well.

Very good product

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toma gines
Pet urine smells gone

Works well on pet urine.

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CarolynJ
Great cleaner

This is great stuff. I use it to clean up after my parrot and it works so well.

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Scott Cooper
Great for stubborn teen-athletes sweat stains and odors!

This stuff solved a long-standing laundry problem for me: How to eliminate very strong underarm odor smells on teen athletes. Laundry is my superpower and these odors/stains were the one thing I could never conquer without multiple steps, many products/chemicals, and lots of elbow grease. I will buy this again!

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Amazon Customer
Got Great Dane pee out of my couch.

A Great Dane took a full pee onto my couch, absolutely soaked the cushions. I truly believed I was screwed and never going to get the smell out. Boy was I wrong. I soaked my couch in this stuff, let it do its thing, and then cleaned my couch with my bissel little green machine. I can’t smell a WIFF of urine. Only the nice citrus smell of the product. Even a week later, the smell hadn’t emerged which can be a problem when you think you cleaned something good enough. This will be a staple in my household for the rest of my life lol.

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christian liriano
RUN don’t walk to buy this!!!

This is a huge game changer!!! I got this because my son is always missing the toilet and the odor is literally GONEEEE. also used it to clean my baby’s blanket that her pamper had leaked on to and the smell is goneeee after a spray and a wash. Amazing quality for the price I really think it’s a great value, super easy to spray, the bottle will last me a good while! Love this product

C
C.J
Works100%

This product performs exactly as stated. The scent is very light and destroys pet order.

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Cara Parnett
Removes urine

Fantastic

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M.E.P.
Effective and gets the job done!

Gets the job done!

E
Erin
Powerful odor eliminator

Really helps get cat urine smell out

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Sydney
Works great!

Amazing!! Worked so well for pet urine. It has a nice clean smell too. Can't wait to try the other products !! 😍

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kataTexas
Works !

This works ! Get urine smelll out of laundry or carpets !

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Kln
It works!!!

It worked

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