What Is an Active Enzyme Laundry Booster and How Does It Work?

An active enzyme laundry booster is a powdered additive that supplies stain-fighting enzymes to your wash cycle, working alongside your regular detergent to break down sweat, grease, and food residue.

Stains that survive a normal wash are usually the ones detergent alone can’t fully break apart. An active enzyme laundry booster addresses that gap: it adds a concentrated dose of biological catalysts that split large stain molecules into smaller fragments water can carry away. It doesn’t replace your detergent — it supplements it.

The reason it works at all comes down to specificity. Each enzyme targets one family of soil, and the blend matters as much as the dose.

Which Enzymes Are in a Booster and What Does Each One Break Down?

Most boosters rely on four core enzymes: protease for proteins, amylase for starches, lipase for fats, and cellulase for embedded soil and fabric brightness. Some formulas add DNase, mannanase, or pectate lyase for additional organic residues.

• Protease — protein soils: sweat, blood, food, saliva.
• Amylase — starches from food and similar messes.
• Lipase — fats, oils, sebum, and greasy residue.
• Cellulase — loosens embedded soil and can improve brightness.

Oxygen-releasing ingredients like sodium percarbonate, where present, add whitening and deodorizing support. Sodium carbonate and sodium silicate supply alkalinity and help soften the water so the enzymes and detergent can do their jobs.

How Much Do These Boosters Cost and What Do You Get?

Prices in the US sit roughly between $12 and $23 depending on brand and load count. The table below compares what three popular options actually deliver.

ACTIVE’s blend includes cellulase, amylase, protease, and lipase and works in cold, warm, or hot water. It’s compatible with liquid, powder, and pod detergents, and works in HE, front-load, and top-load machines. Dirty Labs lists sodium carbonate, sodium percarbonate, sodium citrate, DNase, sodium silicate, and several other ingredients in its formulation. Shaklee uses subtilisin and cellulase plus sodium carbonate, sodium percarbonate, and a surfactant.

If you’d rather compare formulas side by side before buying, this roundup of the best enzyme laundry boosters lays out the tested options.

How Do You Actually Use a Booster?

Place the powder in the empty drum, not the detergent dispenser — that’s the single most common mistake. ACTIVE’s manufacturer directs 1–2 scoops into the drum, then laundry, then detergent, then run the cycle. For a presoak, use 1–2 scoops in a tub of hot water and soak for 1 hour before washing.

Shaklee’s directions are more specific:

• Medium load: ½ scoop (1 tablespoon) with detergent.
• Large load: 1 scoop (2 tablespoons) with detergent.
• Soaking: 2 scoops (4 tablespoons) per gallon of water, 1–6 hours, then rinse or wash thoroughly.
• Dissolve in warm water and use within 6 hours.

ACTIVE’s product page confirms the drum-placement method and all-temperature performance. Shaklee warns specifically against letting undissolved powder sit on wet fabric.

More product isn’t better. Exceeding the stated scoop can leave residue on clothes, and not every booster shares the same enzyme blend, load count, or temperature range — so read the label rather than assuming.

What Safety and Fabric Cautions Apply?

Check the garment care label before washing or soaking; Shaklee expressly requires it, and enzyme powders can dull or damage finishes on delicate textiles. Enzyme dust is also a respiratory concern — Shaklee’s ingredient glossary identifies subtilisin and alpha-amylase as respiratory sensitizers under the European Commission classification referenced on its page. Avoid inhaling the powder, keep containers closed, and follow the label’s first-aid instructions.

Don’t improvise mixtures. Combining a booster with chlorine bleach, acids, or other stain chemicals isn’t sanctioned by any manufacturer. Keep powders away from children, pets, eyes, and moisture, and test colorfastness on an inconspicuous area before treating anything unusual.