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BioGuard Oxysheen 1 lb. | Non-Chlorine Pool Shock

SKU: 22841BIO
$10.99

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Description

BioGuard Oxysheen is an oxygen-based, non-chlorine shock that destroys the organic waste bathers leave behind — perspiration, suntan oils, lotions, cosmetics, and the nitrogen compounds that make water look dull and smell off — without adding a single ounce of chlorine or bromine to the pool.

That last point is what makes it a different tool than a conventional shock. A chlorine shock does two jobs at once: it disinfects, and it oxidizes. Oxysheen does the second job only, and does it cleanly. There's no bleaching risk on a vinyl liner or a colored surface, no cyanuric acid added to water that may already be carrying too much of it, and no waiting hours for a chlorine spike to fall back to a swimmable level. Swimming can resume 15 minutes after application.

The practical case for it shows up in a few specific situations. Chloramines — the combined chlorine that produces the sharp "chlorine smell," burning eyes, and skin irritation — are the most common. Ironically, that smell means the pool needs oxidation, not more sanitizer, and Oxysheen breaks those compounds apart directly. It's also the right choice for a pool that needs shocking on a Saturday afternoon with people arriving at four, for indoor and commercial pools where chloramine buildup has nowhere to off-gas, and for any pool whose stabilizer level has climbed too high to keep adding stabilized chlorine products.

Clearing the organic load also lowers sanitizer consumption. Free chlorine that isn't being spent binding to body oils and swimmer waste stays available to do the job it's actually there for, which means a pool that gets oxidized regularly generally burns through less chlorine over a season.

Pro Tip: Expect a false high total chlorine reading for 48 to 72 hours after application, and don't chase it. The oxidizer in Oxysheen interferes with standard DPD test chemistry, so your test kit will report combined chlorine that isn't actually there. Pool owners who don't know this see the number, assume the shock failed, and dose again — which is wasted product and wasted money. Wait two to three days, then retest. If you need an accurate reading sooner, take a sample to a dealer who can test for it specifically.

Brand

BioGuard®

What's in the Box
  • 1 x BioGuard Oxysheen Non-Chlorine Shock, 1 lb sealed bag
  • Full manufacturer label with dosing rates, balance targets, first aid, and storage directions
Key Features

Swim in 15 Minutes

Because no chlorine is added, there's no elevated sanitizer level to wait out. The pool is ready for swimmers 15 minutes after application, which makes same-day shocking realistic instead of a next-morning proposition.

Contains No Chlorine or Bromine

Oxysheen adds no halogen sanitizer to the water and no cyanuric acid. For pools whose stabilizer level has already climbed high, that matters — every dose of stabilized chlorine shock makes that problem permanently worse, and this one doesn't touch it.

Non-Bleaching

Safe around vinyl liners, colored plaster, and painted surfaces. Undissolved chlorine granules resting on a liner are one of the more common ways pool owners create a permanent light spot; this formula removes that risk entirely.

Destroys Contaminants and Odors

Targets the non-living organic load — perspiration, suntan oil, lotions, cosmetics — along with the chloramines responsible for the harsh smell and eye irritation people wrongly blame on "too much chlorine."

Clears Cloudy Water

Much of the haze in a pool that tests fine is dissolved and suspended organic matter too fine for the filter to capture. Oxidizing it removes it, restoring clarity and sparkle rather than masking the problem.

Lowers Sanitizer Consumption

Free chlorine spent binding to swimmer waste isn't available to sanitize. Removing that waste with a dedicated oxidizer keeps more of your sanitizer working, which usually shows up as a smaller chlorine bill over the season.

Fast, Complete Dissolving

Broadcasts directly into the pool with no pre-mixing, bucket work, or pre-dissolving, and leaves no granular residue on pool surfaces.

Well Suited to Indoor and Commercial Pools

Indoor pools have no open air for chloramines to escape into, and high-bather-load commercial pools generate organic waste faster than a residential backyard. Both benefit from routine non-chlorine oxidation.

How It Works

The active ingredient is potassium peroxymonosulfate at 42.8% — commonly written as MPS or potassium monopersulfate. It's an oxygen-based oxidizer rather than a halogen, and the difference in mechanism explains everything the product does and doesn't do.

When MPS dissolves, it releases active oxygen. Active oxygen attacks organic molecules by stripping electrons from them, breaking large compounds down into smaller, simpler ones that the filter can capture or that leave the water entirely as gas. Body oils, perspiration, urea, cosmetics, and suntan lotion all come apart under that attack. So do chloramines — the combined chlorine compounds that form when free chlorine binds to nitrogen waste. Breaking those bonds is what eliminates the smell and the eye irritation, and it also releases the bound chlorine back into service as free chlorine.

Because the reaction consumes the oxidizer rather than leaving a residual, there's no lingering chemical level to wait out. That's the mechanical reason behind the 15-minute swim return, and it's also why the product doesn't bleach — there's no hypochlorite present to strip color from a liner or a painted surface.

It's important to understand the boundary of that mechanism. Oxysheen is an oxidizer, not a sanitizer. It destroys non-living organic matter extremely well. It is not a disinfectant, it does not maintain a residual, and it does not reliably kill algae or bacteria. It's a partner to your sanitizer program, not a replacement for it — which is precisely why it works alongside every sanitizer system rather than competing with any of them.

One side effect of the chemistry is worth planning around: MPS reacts with standard DPD test reagents in a way that mimics combined chlorine, producing artificially high total chlorine readings for roughly two to three days after treatment.

Pro Tip: Non-chlorine shock does not replace your sanitizer, and it will not clear an algae bloom. If your pool is green, cloudy-green, or has visible algae on the walls, you need a chlorine shock and an algaecide — Oxysheen is the wrong tool and using it will cost you days. Think of it this way: chlorine shock handles living things, non-chlorine shock handles the mess living things leave behind. A pool that's clear but dull, smelly, or irritating to the eyes is the Oxysheen scenario. A pool that's growing something is not.

Directions for Use

Dosage Reference

  • Initial treatment: 2 lbs per 10,000 gallons
  • Routine maintenance: 1 lb per 10,000 gallons, weekly
  • Biguanide (non-chlorine) pools: 2½ lbs per 10,000 gallons — apply half in the skimmer and broadcast the other half into the deep end

Balance Your Water First

Confirm the pool is in range before treating. Oxidation works most efficiently in balanced water, and shocking an unbalanced pool wastes product:

  • pH: 7.2–7.6
  • Total alkalinity: 125–150 ppm (80–150 ppm on mineral programs)
  • Calcium hardness: 175–225 ppm for vinyl and fiberglass; 200–275 ppm for plaster

Adjust total alkalinity first, then pH, then calcium hardness. Always confirm the ranges on your current product label, since manufacturers periodically revise them.

Standard Application

  1. Confirm the filtration system is running and circulating normally.
  2. Measure the correct amount for your pool volume using the dosage reference above.
  3. Broadcast the product directly into the deep end of the pool with the filtration system running.
  4. Apply in the morning or evening, when no bathers are in the water.
  5. Let the pool circulate for at least 15 minutes.
  6. Swimming or bathing may resume after 15 minutes.
  7. Continue running the filter to distribute the treatment and clear the oxidized material.

Biguanide Pool Application

  1. Measure 2½ lbs per 10,000 gallons of pool water.
  2. Apply half of the dose directly into the skimmer.
  3. Broadcast the remaining half into the deep end with the filtration system running.
  4. The split application method helps preserve the sanitizer residual on a biguanide program. Consult your dealer if you're unsure of your pool's volume or current sanitizer level.

When to Use It

  • Weekly, as part of routine maintenance
  • After a period of heavy bather load — a party, a hot weekend, a busy stretch
  • When the water smells strongly of chlorine or is irritating eyes and skin, both signs of chloramine buildup
  • When water looks dull or slightly hazy despite normal sanitizer and balance readings
  • When you need to shock and swim the same day
  • When cyanuric acid is already high and stabilized chlorine products would make it worse

Storage and Handling

  • Store in a cool, dry, well-ventilated area away from direct sunlight and heat sources
  • Keep the container tightly closed and keep the product dry
  • Store separately from chlorine products, acids, and organic materials
  • Keep out of reach of children and pets
  • Never return unused product to the original container once it has contacted anything else
  • Read and follow all label precautions, first aid, and disposal directions before use

Pro Tip: Most pools benefit from both kinds of shock, used for different reasons. Chlorine shock is your workhorse for sanitation, algae control, and recovery after a real problem. Non-chlorine shock handles routine weekly oxidation without adding stabilizer, without bleaching risk, and without taking the pool out of service. A common approach is chlorine shock for opening, closing, and any actual incident, with Oxysheen carrying the weekly oxidation load through the season. That combination keeps cyanuric acid from creeping upward all summer, which is the single most common reason a pool "stops holding chlorine" by August.

Specifications
  • Brand: BioGuard
  • Product Type: Non-chlorine oxidizing shock
  • Form: Fast-dissolving granular
  • Net Weight: 1 lb
  • Manufacturer Part Number: 22841BIO
  • Active Ingredient: Potassium peroxymonosulfate, 42.8%
  • Other Ingredients: 57.2%
  • Chlorine Content: None
  • Bromine Content: None
  • Cyanuric Acid Contribution: None
  • Bleaching: Non-bleaching — safe on vinyl, colored, and painted surfaces
  • Initial Dose: 2 lbs per 10,000 gallons
  • Maintenance Dose: 1 lb per 10,000 gallons, weekly
  • Biguanide Pool Dose: 2½ lbs per 10,000 gallons, split between skimmer and deep end
  • Swim Return Time: 15 minutes
  • Application Method: Broadcast into the deep end with filtration running — no pre-dissolving
  • Balance Targets: pH 7.2–7.6; total alkalinity 125–150 ppm; calcium hardness 175–225 ppm vinyl and fiberglass, 200–275 ppm plaster
  • Test Kit Note: Produces false high total chlorine readings for 48–72 hours
  • Suitable Surfaces: Plaster, gunite, vinyl liner, fiberglass, painted and colored
  • Sanitizer Compatibility: Chlorine, bromine, salt generator, mineral, and biguanide systems
  • Filtration Compatibility: Sand, cartridge, and DE
  • Not A Substitute For: Sanitizer or algaecide
  • Shipping Classification: DOT-regulated — ground shipping only
Compatibility

Sanitizer Systems

  • Chlorine pools — fully compatible; oxidizes chloramines and frees up bound chlorine
  • Bromine pools — fully compatible as a non-chlorine oxidizer
  • Salt chlorine generator pools — fully compatible; reduces the oxidation load the cell would otherwise carry
  • Mineral system pools — compatible; note the alkalinity target differs on some mineral programs
  • Biguanide (non-chlorine) pools — compatible, with a modified dose and application method. This is one of the few oxidizers usable on a biguanide program, since chlorine shock would destroy the sanitizer outright.

Pool Surfaces and Types

  • Plaster and gunite
  • Vinyl liner — non-bleaching
  • Fiberglass
  • Painted and colored surfaces
  • In-ground and above-ground installations
  • Indoor, outdoor, residential, and commercial pools

Filtration Systems

  • Sand, cartridge, and DE filters

What It Does Not Do

  • Not a sanitizer. Oxysheen does not disinfect, does not maintain a residual, and must never be used in place of chlorine, bromine, or another approved sanitizer.
  • Not an algaecide. It will not clear an algae bloom. Visible algae calls for a chlorine shock and a dedicated algaecide.

Important Handling Cautions

  • Never mix with any other chemical. Do not combine Oxysheen with chlorine, acid, or any other product in a bucket, scoop, skimmer, or feeder. Add each product separately with circulation running between additions.
  • Apply when no bathers are in the water.
  • Expect false high total chlorine readings on standard test kits for 48 to 72 hours after application.

Most products purchased from our online shop within the last 30 days are eligible for return. Please review our return policy to see the list of items that cannot be returned.

Some major items that are non-returnable:

  • Gift cards
  • Electronics
  • Pumps / Motors
  • Hot Tubs
  • Closeouts
  • Fireplaces
  • Electric Fireplaces
  • Massage Chairs
  • See return policy below for full list of non-returnables.

BioGuard® Brand FAQs

What is the BioGuard 3-Step Care System?

It's the brand's core program for traditional chlorine pools, and it reduces routine care to three jobs.Step 1, sanitize— SilkGuard Complete® tabs or sticks maintain a continuous chlorine residual that kills bacteria and controls algae between applications.Step 2, shock— Smart Shock® is applied weekly to oxidize the organic waste bathers leave behind, break apart chloramines, and restore clarity.Step 3, prevent— Algae Complete® stops algae before it establishes rather than fighting it after it blooms. The system works in pools of any size and surface type that circulate 10 to 24 hours per day.

What's the difference between BioGuard and SpaGuard?

They're sister brands from the same water-care company.BioGuard is the swimming pool line. SpaGuard is the spa and hot tub line.The split isn't marketing — pool dosing is calculated for tens of thousands of gallons at ambient temperature, while spa dosing is calculated for a few hundred gallons at 100°F. Pool packaging makes accurate spa measurement nearly impossible, and a pool-sized dose in a hot tub is a serious overdose. Match the product line to the vessel.

Which BioGuard program is right for my pool?

Equipment usually decides it. Pools running a standard chlorinator, feeder, or skimmer application belong on the3-Step Care System. Pools with a salt chlorine generator should be on thesalt pool programs— Mineral Springs® or SaltScapes® — which are formulated around the specific scale, balance, and cell-care demands of a generator. Owners who want no chlorine or bromine in the water at all use BioGuard'snon-chlorine biguanide program, which is a fully separate chemistry with its own sanitizer, oxidizer, and algaecide.

Can I mix BioGuard products with chemicals from other brands?

Basic balancers are chemically generic and generally interchangeable — alkalinity increaser is sodium bicarbonate no matter whose label is on the bucket. The real risk sits withsanitizer programs and specialty additives. Never introduce chlorine or bromine into a biguanide pool; the two chemistries destroy each other and produce cloudy water, gummy filter fouling, and a collapsed sanitizer residual. Also avoid stacking algaecides and clarifiers from different brands, since overlapping actives can cause foaming or staining. And regardless of brand, never combine two products in the same bucket, scoop, or feeder — always add them separately with circulation running between.

What is SilkGuard Technology?

SilkGuard® is a conditioning technology built into BioGuard's chlorinating tabs and sticks. It softens the feel of the water against skin and helps protect pool surfaces and equipment from scale formation, so the sanitizer is doing two jobs at once. SilkGuard Complete® products also carrySunShield® Technology, which shields free chlorine from ultraviolet breakdown. UV loss is the largest single drain on chlorine in an outdoor pool during summer, so protecting the residual directly reduces how much sanitizer you consume over a season.

Do BioGuard products work with salt chlorine generators?

Yes. A salt pool is still a chlorine pool — the generator simply produces the chlorine on site instead of you adding it from a bucket. Salt pools still need balancing, weekly oxidation, algae prevention, and scale protection, and they have one extra demand a standard pool doesn't: the generator cell itself accumulates scale and needs periodic cleaning. BioGuard's salt-specific programs are built around exactly those requirements.Do not skip testing on a salt pool— the automation controls chlorine production, not water balance.

About BioGuard®

BioGuard is a professional swimming pool care line built on a simple premise: pool chemicals work better as a program than as a shelf of unrelated purchases. Most water problems homeowners fight through the summer aren't caused by a bad product. They're caused by good products working against each other, applied out of sequence, in water whose balance was never corrected in the first place. BioGuard's entire approach is organized around fixing that — matched products, a defined order of operations, and a diagnostic process behind the recommendation.

The brand sits under the KIK Consumer Products umbrella alongside its spa counterpart, SpaGuard, and it covers the full range of pool water care: sanitizers, shocks, algaecides, balancers, water enhancers, surface cleaners and problem solvers, salt pool products, and off-season closing chemistry.

Three Programs, One Philosophy

  • Traditional Chlorine — the 3-Step Care System — Sanitize, shock, prevent. SilkGuard Complete® tabs and sticks handle daily sanitation, Smart Shock® handles weekly oxidation and clarity, and Algae Complete® handles algae prevention. Suitable for pools of any size and surface type running 10 to 24 hours of circulation per day.
  • Salt Pools — Purpose-built chemistry for pools with a chlorine generator, including the Mineral Springs® and SaltScapes® programs. Salt pools still generate chlorine, and they still need balancing, scale protection, and cell care — these products are formulated for that specific equipment set.
  • Non-Chlorine Pools — A complete biguanide-based program for owners who want no chlorine and no bromine in the water at all, with its own dedicated sanitizer, oxidizer, and algaecide.

Formulation Technologies

Two proprietary technologies show up across the chlorine line and explain a lot of the brand's reputation. SilkGuard® Technology conditions the water so it feels noticeably softer against skin while also helping protect pool surfaces and equipment from scale. SunShield® Technology protects free chlorine from ultraviolet breakdown, which is the single largest source of chlorine loss in an outdoor pool during summer — sanitizer that survives the afternoon is sanitizer you don't have to replace.

Diagnosis, Not Guesswork

BioGuard is sold through trained specialty dealers rather than mass-market channels, and the brand backs that network with the ALEX® water analysis system. ALEX reads a full water sample — sanitizer, pH, total alkalinity, calcium hardness, cyanuric acid, metals, and more — and returns a sequenced correction plan rather than a generic product suggestion. That distinction matters more than it sounds. Cloudy water has at least six common causes, and the fix for a filtration problem is nothing like the fix for a high-pH problem or a phosphate problem. Testing tells you which one you actually have.