Enzyme Oxygen Laundry Booster
Your gym clothes still smell after washing. Your towels stopped absorbing. Your whites are yellowing. Your detergent handles surface soil. This booster handles everything it misses: seven enzyme classes break down stains and odor-causing deposits, oxygen bleach deoderizes and brightens & whitens through real stain oxidation, and a zinc compound neutralizes the odor molecules themselves. One scoop, any detergent, any machine.
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7 Enzyme Classes
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DNase for Persistent Odor
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Fragrance Free
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No Optical Brighteners
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Works with Any Detergent
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Made in USA
Up to 15% off & Free Shipping on All Orders
If you don't absolutely love your product, we will refund you 100%.
THREE SYSTEMS, ONE SCOOP
Your detergent has surfactants that lift surface soil. That’s one cleaning mechanism. This booster adds three more that work simultaneously.Â
SYSTEM 1: 7-ENZYME PANEL
Enzymes are biological catalysts. They break specific molecular bonds and keep working throughout the wash cycle rather than being consumed on contact. Most detergents include 1 to 3 enzyme classes, if any. This booster includes seven, each matched to a specific type of soil to fill in cleaning gaps your detergent doesn't cover:
Protease: breaks down protein: blood, grass, body soil, collar grime.
Lipase: dissolves fats: cooking oil, sebum, body oils, pit stains.
Amylase: breaks down starch: food stains, pasta sauce, baby formula.
Cellulase: manages fabric fibers: trims broken microfibrils that make colors look faded, reduces pilling.
Mannanase: dissolves gum-based residues: cosmetics, ice cream, certain food thickeners.
Pectate Lyase: handles fruit and wine pigments: berry stains, red wine, fruit juice.
DNase: breaks down embedded organic deposits: nucleic acid residue trapped deep in fabric fibers that produces persistent odor. This is why gym clothes keep smelling even after multiple washes. Your detergent washes the surface. DNase reaches what surfactants can’t.
You don’t need to diagnose the stain. One scoop covers all seven types of soil.Â
SYSTEM 2: OXYGEN BLEACH
Sodium percarbonate dissolves in water and releases hydrogen peroxide gradually throughout the wash. This provides color-safe oxidative bleaching: it breaks down the molecular structures that make stains visible, brightens whites, and revives colors. Unlike chlorine bleach, it doesn’t damage fibers or strip dye.
SYSTEM 3: ZINC-BASED ODOR NEUTRALIZER
Sodium Zinc Polyitaconate is a bio-based zinc compound that chemically captures and neutralizes volatile odor compounds: the ammonia, sulfur, and other molecules you smell. This isn’t fragrance covering up odor. It’s chemistry eliminating the compounds that produce it.
Three independent odor systems in every wash: the enzymes break down the deposits that produce odor, the oxygen bleach destroys odor-causing residue, and the zinc neutralizer captures the smell itself so it rinses away instead of lingering.
WHY IT WORKS ALONGSIDE ANY DETERGENT
Surfactants lift surface soils. But they can’t break down embedded organic matter at the molecular level. That requires enzymes. Most detergents have no enzymes, or only 2 to 3 classes at low concentrations. The booster fills three gaps your detergent almost certainly has: enzyme breadth, oxygen bleach, and targeted odor neutralization.
DETERGENT BOOST
Stained, heavily soiled, or high body-oil loads: kids' clothes, kitchen towels, workout gear.
MACHINE WASH
Add to drum before clothing. Add detergent where best:
- 1 scoop standard load
- 2 scoops large or heavily soiled
- Warm water, normal cycle (add pre-soak for best results)
- Use the pre-soak option if washing with cold or cool water
Enzymes break down body oils, protein soils, and embedded grime that regular washing leaves behind. Enzymes work better with time. Light loads with normal soil don't need a booster. Your detergent handles those.
DEEP RESET
If new to FEBU, start here to clear built-up, embedded resiudes. In first wash or two, trapped odors may surface. That's buildup leaving the fabric, not new odor. It proves the enzymes are working. By load 2 or 3, fabrics are genuinely clean. Then switch to detergent boost for maintenance.
Gym clothes, towels, or anything with set-in odors that survive washing.
HEAVY-DUTY RESET:
Soak before washing:
- 2 scoops regular load
- 3 scoops for large or XL
- Warm water, pre-soak, longest cycle with extra rinse
DEEP SOAK (for deep-set odors):
- 1 scoop per gallon of warm water
- Soak 1-6 hours (overnight okay)
- Then run Heavy-Duty Reset
Pair with heavy-soil detergent dose. Heavy-duty was clears most cases. Deep soak first if removing years of buildup. Extended contact reaches residue trapped deep in fabric.
WHITES RESTORATION
Dingy whites, yellowed collars, grayed towels and linens.
MACHINE WASH:
- 2 scoops standard load
- 3 scoops large or XL load
- Hot water (120 to 140 F), normal cycle
DEEP WHITENING SOAK:
- 2 scoops per gallon hot water
- 1 hour to overnight for severe dinginess
- Then run Machine Wash
Hot water activates sodium percarbonate's full whitening and brightening power. Deep soak provides hours of contact to remove severe yellowing. Use with detergent in the washing machine.
DOSING
1 scoop = 10g (2 tsp). Dosing above is for HE machines. Standard top-loaders: add 1 extra scoop per use case. If using a detergent without enzymes, use 2 scoops for everyday loads.
DO NOT USE ON
Silk, wool, cashmere, or other protein-based fibers. The protease enzyme that breaks down protein stains will also break down protein fibers.
For more information on how to best use the product, visit the FEBU Booster Guide.
Every ingredient listed. Every one has a job.
Sodium Carbonate (washing soda) Softens water and boosts cleaning power by raising wash water alkalinity. Helps grease and oil-based soils release from fabric. A mineral compound, not a petrochemical.Â
Sodium Percarbonate (oxygen bleach) Releases hydrogen peroxide in water for color-safe brightening and whitening. Breaks down stain color at the molecular level without the fiber damage of chlorine bleach. Also deodorizes. Â
Sodium Citrate (chelant and pH buffer) Prevents hard water minerals from interfering with cleaning. If you have hard water, this is the ingredient that makes the difference between mediocre and effective.
Sodium Zinc Polyitaconate (zinc-based odor neutralizer) A bio-based
polymeric zinc compound that chemically captures and eliminates volatile odor compounds. Not fragrance. Not masking. The zinc binds to the molecules that cause odor and neutralizes them.
7-Enzyme Blend (Protease, Lipase, Amylase, Cellulase, Mannanase, Pectate Lyase, DNase) Seven enzyme classes, each targeting a different category of soil. Enzymes are biological catalysts produced through fermentation. They break specific molecular bonds and keep working throughout the wash cycle. See How It Works for what each enzyme targets.
Sodium Silicate (machine protection) Forms a thin protective layer on metal and enamel surfaces inside your washing machine, preventing mineral deposits from bonding during the wash cycle. A small amount that does a specific job.
No fillers, no fragrance, no dyes, no optical brighteners, no undisclosed "proprietary blend."
View our Safety Data Sheet
No optical brighteners. Whiteness comes from actual stain oxidation, not UV-reactive dyes that fake it.
No fragrance. When odor is eliminated at the source, there's nothing to mask.
No chlorine bleach. Sodium percarbonate provides color-safe oxidation without fiber damage.
No dyes. The blue speckles in other boosters are cosmetic. They don't clean anything.
No fillers. No sodium chloride, no excess soda ash added for weight. Every ingredient is functional.
No undisclosed ingredients. No "proprietary blend." All ingredients named, all explained in the Ingredients section.
Clean laundry shouldn't still smell, stain, or fade.
Clean laundry shouldn't still smell, stain, or fade.
Embedded organic deposits deep in synthetic fibers trap odor. Surfactants wash the surface. The source stays.
Your detergent has 1 to 3 enzyme classes, if any. Laundry has at least five types of soil. The math doesn't work. Stains that don't respond to your detergent often just need the right enzyme.
Optical brighteners in your detergent fake whiteness with UV-reactive dyes. When they degrade, the stains underneath show through.
Seven enzymes. Oxygen bleach. Zinc odor neutralizer.
Seven enzymes. Oxygen bleach. Zinc odor neutralizer.
Each targets a different type: proteins, fats, starches, gums, fruit pigments, and embedded odor-causing deposits. That stain that survived three washes? Your detergent didn't have the right enzyme. One scoop covers all of them.
Enzymes break the molecular bonds. Sodium percarbonate oxidizes the color structures that remain. This is why your whites get whiter over time instead of yellowing.
As deposits break down, volatile odor molecules enter the wash water. The zinc compound captures them so they rinse away. Gym clothes stop smelling after one wash instead of three.
Works with any detergent. Any machine. Any water temperature.
Works with any detergent. Any machine. Any water temperature.
Keep your current detergent. Add a scoop of the booster to each load. It fills the gaps your detergent doesn’t cover.
Sodium carbonate, sodium percarbonate, sodium citrate, sodium zinc polyitaconate, sodium silicate, and a 7-enzyme blend. No fillers, no fragrance, no dyes.
Cotton, polyester, linen, nylon, blends. Colors and whites. The only exception is protein fibers like silk and wool.
Three cleaning systems. Most oxygen boosters have one.
Three cleaning systems. Most oxygen boosters have one.
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Yes. The booster works alongside your detergent, not instead of it. Your detergent handles surface soil. The booster handles what it leaves behind: biofilm, body oils, embedded residue, and the stains that survive a normal wash.
For regular boosting, use 1 scoop for a standard load or 2 scoops for a large or heavily soiled one. Warm water and a normal cycle work best, and a pre-soak helps if you're washing cold.
If you're new to FEBU, start with a deep reset to clear years of buildup: 2 scoops for a regular load, 3 for large or XL, with a pre-soak and extra rinse. You may notice trapped odors surface in the first wash or two. That's buildup leaving the fabric, and it means the enzymes are working. By the second or third load, switch to regular boosting.
Whites restoration and deep soaks for set-in odor use different doses. One scoop is 10g, and standard top-loaders need one extra scoop per use case.
Full instructions are in the FEBU Booster Guide.
Yes. The formula is enzyme-forward with a low oxygen bleach load, so there's not much oxidizer in a scoop to begin with, and there are no optical brighteners. OBAs deposit on everything in a load, and on black or navy the blue-white cast reads as a dull gray haze over time.
Temperature is the thing to think about. Heat activates the oxygen bleach, which lifts stains, deodorizes, and brightens. Heat and oxygen bleach also loosen dye, lightly and over time.
That "over time" is the part that matters. One warm wash won't take much of anything out of a black t-shirt. What adds up is dozens of hot washes across a garment's life, so the question isn't whether to ever use heat on darks, it's whether this particular load needs it.
Usually it doesn't. Cold with a pre-soak handles routine dark loads and the enzymes work regardless of temperature. But when darks are genuinely dirty, gym clothes, work pants, anything with real body oil, warm gets you a better clean and the cost to the dye is negligible over a load or two.
Yes, with a pre-soak. By that we mean any extra soaking time before the wash, whether that's a setting on your machine, a longer cycle, or a bucket or the sink pre-wash. Enzymes are catalysts, so they don't get used up as they work. They just need time and contact, and cold slows them down without stopping them.
Warm is the better cleaning temperature. Enzymes work faster in it, so more gets done in the same cycle, and if cleaning heavy soils is what you're after, that's what we'd recommend.
Cold is a garment care choice. You're trading some cleaning efficiency for gentler treatment of dye and fabric, which is a reasonable trade on a lot of loads. Contact time is how you close the gap. A soak gives the enzymes the hours they need to do in cold what they'd have done faster in warm.
Yes, both. The booster contains no surfactants, so it doesn't foam at all. Nothing to interfere with HE machine sensors or trip a suds-lock error.
Dosing is where machine type matters. Our scoop sizes are calibrated for front-loading HE machines, which hold a relatively small volume of water in the drum during the wash itself. Standard top-loaders fill the drum much fuller. More water in contact with your fabrics means the same scoop is spread thinner, lowering the concentration doing the work. Add one extra scoop per use case to compensate.
Add the booster directly to the drum before your clothes, not the detergent dispenser.
One major limitation: don't use it on silk, wool, or cashmere. The protease enzyme that breaks down protein stains will also break down protein fibers. The occasional or accidental use won't destroy your clothing, but it's best to avoid.
We would also suggest utilizing cold washes on anything with reactive dyes where you are concerned about color loss. Just ensure you add a pre-soak to give the enzymes extra time to work!
Dry and sealed. Moisture is the only real enemy here. It activates the oxygen bleach prematurely and degrades the enzymes before they reach your wash.
Sunlight is fine, so you don't need to hide it in a cabinet. Plenty of customers decant it into a mason jar or a sealed canister and leave it out on the shelf. Just make sure whatever you use closes tight, and skip the damp corner of the laundry room.
100% satisfaction guarantee. If it doesn't do what we said it would, we'll refund you. No return shipping, no hassle. We just have one ask: tell us what went wrong so we can improve.
Most orders arrive in 2 to 6 business days. We ship from Salt Lake City, UT. Orders placed before 12pm PST ship the same business day. You'll get a tracking number by email as soon as it leaves our warehouse.
We ship anywhere in the US, including Hawaii, Alaska, and APO/FPO military addresses.
Canadian customers, we ship from a Canadian warehouse so you avoid cross-border delays and duties. Just switch the country selector to Canada before you check out. If you're seeing US pricing and shipping, you're on the wrong storefront.
Outside the US and Canada, we don't currently ship.
Send a photo to hello@tryfebu.com and we'll replace it. No return needed.
Choose your delivery frequency at checkout, from every month to every six months. You save 10 to 25% on your order depending on quantity for the first and all recurring orders.
Yes. Manage everything from your account: skip a delivery, change the frequency, update your address, or pause/cancel entirely.
DNase is an enzyme that breaks down nucleic acid residue, a sticky organic material that builds up in fabric fibers and holds other deposits in place.
That residue is why odor comes back. Regular washing lifts what's on the surface, but the underlying structure stays anchored in the weave. Add heat or moisture and the smell returns. Nothing was removed, just temporarily covered.
DNase degrades that residue so the whole deposit releases and washes away.
Customers also report brighter whites and grayed fabrics coming back after a few washes. Same reason. Much of what makes older fabric look dull is accumulated deposits sitting in the fibers, not permanent discoloration.
Two reasons.
Fragrance masks odor instead of removing it. When the scent fades, the smell comes back because the source was never addressed. The booster breaks down the deposits causing the odor, so there's nothing left to cover up.
Fragrance is also one of the most common causes of contact allergies and skin irritation in laundry products. A single "fragrance" listing on a label can represent dozens of undisclosed compounds. We formulated this for people with sensitive skin, for kids' clothes, and for elderly care fabrics, so we left it out entirely.
Your clothes come out smelling like nothing. That's what actually clean smells like.
Ten ingredients: sodium carbonate (soda ash), sodium percarbonate (oxygen bleach), seven enzyme classes (protease, amylase, lipase, mannanase, pectate lyase, cellulase, DNase), sodium zinc polyitaconate for odor capture, and sodium citrate.
"Non-toxic" has no regulatory definition for cleaning products, so we'd rather show you the formula. Sodium percarbonate breaks down into oxygen and water. Enzymes degrade themselves after they work. Sodium citrate is the same salt used in food production. Everything rinses clean. Nothing is designed to stay on your clothes.
What's not in it: no optical brighteners, no quats, no fragrance, no dyes, no fillers, no sulfates.
Why choose FEBU
We believe laundry is worth doing right.
