Serum CU 1 Gallon: The Professional-Grade Organic Cleaner That Actually Works

If you’ve dealt with pet urine soaked through carpet backing, blood on upholstery, or wine stains that basic cleaners couldn’t touch, Serum CU 1 gallon is worth knowing. This isn’t a general-purpose spray. It’s a formulated hydrogen peroxide cleaner built specifically for professional carpet and upholstery cleaning — one that degrades into water and oxygen with no leftover residue or chemical odor.

Used by restoration contractors and cleaning professionals across the country, it handles the kinds of organic loads that standard detergents can’t fully address.

What Is Serum CU?

Serum CU is a professional-use organic cleaner and spot remover manufactured by Serum Products LLC, based in Marietta, Georgia. It’s sold under the Serum Systems product line and designed for use on carpet, upholstery, fabric, and select hard surfaces.

The formula contains 20% hydrogen peroxide combined with surface active agents. Those agents reduce surface tension, which allows the product to penetrate deep into a fiber’s substrate — not just sit on top. As it works, it oxidizes organic material and lifts it toward the surface, making extraction far easier.

Once it evaporates, nothing harmful stays behind. No added deodorizers. No alkaline extraction detergents required. Just water and oxygen — and a clean, antiseptic scent.

Its UN classification (UN-2984) means it ships as a hazardous material, which tells you something about its strength. The pH sits at 3.0, which is intentionally acidic. That lower pH is part of why it performs well against organic loads — hydrogen peroxide is more reactive in an acidic environment.

Key Features and Benefits of Serum CU

What separates this product from general spotters comes down to a few specific advantages:

• Removes pet urine and body oils — including the yellow discoloration left behind
• Eliminates blood stains almost immediately upon contact
• Removes wine stains and their associated odor without needing separate products
• 99.9% volatile — leaves no unwanted residues behind
• pH buffered at 3.5 — protects carpet fibers and dye sets from damage
• No BrownOuts — prevents the browning that can occur with some cleaning chemicals
• Eliminates the need for acid rinses or alkaline extraction detergents
• Brings organics to the surface for easy hot water extraction
• Shortens the cleaning cycle, which directly increases job productivity
• Reduces the number of chemicals a technician needs to carry

From a practical standpoint, cutting your chemical inventory is a real benefit. Carrying fewer products, spending less time re-treating spots, and finishing jobs faster adds up quickly over a week of work.

Chemical Composition and Physical Properties

Understanding what’s actually in a cleaner helps you use it correctly and store it safely.

The Dipropylene Glycol Monomethyl Ether acts as a solvent carrier, helping the hydrogen peroxide solution penetrate into porous surfaces more effectively. The low VOC content (0.49 lb/gal) makes it a viable choice in environments where chemical off-gassing is a concern.

How Serum CU Works

The chemistry here is straightforward but effective. Hydrogen peroxide at 20% concentration generates active radicals when it contacts organic material. These radicals interact with the enzymes present in organic loads — breaking down the molecular structure of stains and odors at the source rather than masking them.

The lower pH of 3.0 isn’t accidental. Organic loads respond better to acidic hydrogen peroxide because the acidic environment makes the formula more aggressive, producing more reactive species. Not every hydrogen peroxide cleaner delivers at this level — the formulation matters.

After application, Serum CU fully oxidizes and degrades. No hazardous chemicals remain. No VOCs off-gas once the surface dries. That’s an important distinction for jobs in occupied homes or sensitive environments.

Where to Use Serum CU

Carpet

For pet urine and odor removal, soak the affected area at least 3–4 times larger than the visible spot. This accounts for the spread of urine through the carpet backing, pad, and into the subfloor beneath.

Let it dwell for at least 10 minutes. Then rinse with hot water and extract using a sub-surface Water Claw tool. This pulls moisture out of the substrate rather than just the surface.

For full-room cleaning, dilute at a 1:8 ratio (one part Serum CU to eight parts water) and apply with a Hydro-Force Sprayer as a Pre Spray Booster. It brightens carpet and deodorizes while the hot water extraction rinse completes the process.

Upholstery and Fabric

Mix a 1:8 solution and apply lightly with a pump-up sprayer or trigger sprayer. Let it dwell for 5 minutes, then extract with an upholstery tool using hot water.

Before treating any fabric, test for colorfastness in an inconspicuous spot. Serum CU can bleed naturally dyed wool or delicate fine fabrics, so always check first. For full upholstery cleaning, pre-spray the entire surface, let it dwell, then extract.

Walls, Baseboards, and Hard Surfaces

For light to medium smoke removal, pre-clean with Serum SR Smoke Remover first. Follow up with a half-and-half mix of Serum CU and clean water, then wipe or damp mop painted walls and baseboards.

On bare concrete floors or subfloors where pets have been present, apply full strength and allow it to penetrate and dwell until dry. Concrete surfaces can be rinsed and allowed to drain. Other substrates may be HEPA vacuumed or damp mopped afterward to remove organic loads.

Crime and Trauma Scenes

Protein-based organics respond very well to this product. For crime and trauma cleanup, apply at full strength, allow adequate dwell time, then choose the appropriate method of removal. Always follow the IICRC S540 Standard for Trauma and Crime Scene Cleanup when working these job types.

Application Instructions and Dilution Ratios

The Eliminator and Eliminator Mini Soft Spray Systems from Serum Systems are compatible applicators for larger-scale jobs. These low-pressure, low-volume systems give you precise control over chemical delivery — especially useful when working around electrical fixtures or sensitive materials.

Dwell time matters. For carpet: minimum 10 minutes. For fabric and upholstery: 5 minutes. Always follow with hot water extraction or HEPA vacuuming, depending on the surface.

Coverage and Performance Specifications

Serum CU is a cleaner and oxidizer — it is not registered or intended for use as an antimicrobial. Don’t use it as a substitute for EPA-registered disinfectants when that classification is required on a job.

Safety, PPE, and Handling Guidelines

Because Serum CU ships as a hazardous material, proper handling is non-negotiable.

Required PPE:

• Water-resistant to waterproof full-body Tyvek suit with hood and booties
• Chemical-resistant gloves (tape at the wrist over gloves and suit)
• Full facial protection with P-100 AG (acid-gas) / OV (organic-vapor) cartridges such as 3M 60926 or equivalent
• Chemical-resistant boots

Storage and disposal:

• Keep the container tightly closed when not in use
• Store in a cool, clean, dry space
• Never dispose of unused product into waterways, creeks, rivers, estuaries, or oceans
• Do not refill or reuse empty containers
• Keep out of reach of children

On-site precautions:

• Do not spray into electrical outlets
• Protect electrical switches, junction boxes, and equipment from overspray
• Take care around CPVC fire suppression pipe — use proper draping and containment

A Safety Data Sheet and Spec Sheet are available through Aramsco and directly from Serum Products. Always reference those before using the product in a new environment.

Related Serum Products

Serum CU works well as part of a broader Serum Systems cleaning protocol. Depending on job type, these products pair with it directly:

• Serum 1000 — Step 1 organic stain and odor remover (CR8101PL)
• Serum 1000 Accelerator — boosts Serum 1000’s bleaching power (CR8103QT)
• Serum 2000 — Step 2 Polymer Coating for surface protection after cleaning (CR8105PL)
• Serum SR — heavy-duty smoke and soot remover, available in gallon and 5-gallon pail (CR8111GL / CR8111PL)
• Serum SBC — Surface Bloom Cleaner for mold and mildew bloom removal
• Serum TG — tile and grout cleaner
• Serum Mini Accelerator — 1-gallon accelerator formula
• Blue Dye — available in quart (CR8107QT)
• Foaming Hand Serum — available in 950ml and 1000ml

The Serum Eliminator Mini machine is a key companion tool — a waterless, low-pressure soft wash system designed specifically for the Serum product line.

Where to Buy Serum CU 1 Gallon

Serum CU is available through several professional supply distributors:

• CleanHub (Sacramento, CA) — listed at $39.99, article number 452-16, phone 844-426-3100
• Aramsco (Radnor, PA) — SKU 108870, catalog number 1680-0789, manufacturer part 5-222-04
• Full Circle Chemical Supply — sells multiple variants
• Schaper’s Supply — ships nationally; note that hazardous material shipping fees may apply, and air shipment eligibility must be verified

The manufacturer, Serum Products LLC, is located at 1355 West Oak Commons Ln., Marietta, GA 30062. Technical questions can be directed to 678-290-1880 or through serumsystems.com.

Conclusion

Serum CU 1 gallon earns its place in a professional cleaning kit by doing what most spotters can’t — penetrating deep into the substrate, breaking down organic stains and odors at the molecular level, and leaving nothing behind but a clean surface and a fresh scent. Whether the job involves pet urine, blood, wine, smoke, or trauma-scene organics, this product handles the load without requiring a cabinet full of supporting chemicals. For any professional prioritizing efficiency, reduced chemical inventory, and reliable results, Serum CU is a practical and proven choice.

FAQs

What is Serum CU used for?

Serum CU is used as an organic cleaner and spot remover for carpet, upholstery, and fabric. It removes pet urine, pet body oils, blood, wine stains, and other organic stains, and also works on hard surfaces like concrete and painted walls.

What percentage of Hydrogen Peroxide is in Serum CU?

Serum CU contains 20% formulated hydrogen peroxide in an aqueous solution, stabilized with surface active agents and buffered to a pH of 3.0–4.0. It is dilutable for most applications but can also be used at full strength for heavy organic loads.

How do you dilute Serum CU for carpet cleaning?

For carpet pre-spray use, dilute at a 1:8 ratio — one part Serum CU to eight parts water. Apply with a Hydro-Force Sprayer as a pre-spray booster. Allow a 10-minute dwell time before rinsing with hot water extraction.

Is Serum CU safe for upholstery and fabric?

It is safe on most upholstery and fabric when used correctly. However, always test for colorfastness in a hidden spot first. Serum CU can bleed naturally dyed wool or delicate fine fabrics, so use it carefully on those materials.

What PPE is required when using Serum CU?

Full PPE is required: a Tyvek suit with hood and booties, chemical-resistant gloves (taped at the wrist), chemical-resistant boots, and full facial protection with P-100 acid-gas and organic-vapor cartridges such as the 3M 60926 or equivalent.

Does Serum CU leave behind any residue or hazardous chemicals?

No. Serum CU is 99.9% volatile. As it evaporates, it degrades fully into water and oxygen. It leaves no toxic chemicals, no VOC off-gassing after drying, and no unwanted residues on carpet or fabric.

What surfaces can Serum CU be used on?

It can be used on carpet, upholstery, fabric, painted walls, baseboards, bare concrete subfloors, and other hard surfaces not harmed by water. It is not recommended for surfaces that are sensitive to water or acidic solutions.

How long is the shelf life of Serum CU, and what are its storage requirements?

Serum CU has a guaranteed shelf life of one year from the date of purchase. Store it in a tightly closed container in a cool, clean, dry space between 40°F and 95°F. Keep away from children and never dispose of unused product into waterways or drainage systems.