TL;DR: OMO Active Clean powder costs $0.75 per wash at standard supermarket pricing ($30 for 2kg, 40 washes). It cleans strongly and has optical brighteners and synthetic fragrance as part of that formula. Resparkle Natural Laundry Powder costs $0.33 per wash, contains no optical brighteners or synthetic fragrance, lists every ingredient at EWG 1-2, and has been independently lab tested to outperform CHOICE's #1-rated supermarket detergent on five common stains. OMO is the right buy if you want a mainstream convenience detergent and cleaning performance is your only filter. Resparkle is the right buy if ingredient transparency, skin safety, and independent performance evidence all matter.
What OMO buyers are actually comparing
OMO is Unilever's flagship laundry brand in Australia. It's been on Australian shelves for decades, it carries strong brand recognition, and its "Active Clean" line is one of the most purchased laundry powders at Coles and Woolworths.
When OMO buyers start researching natural alternatives, they're usually asking one of three questions:
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"Is OMO actually safe for my kids/skin?" OMO contains optical brighteners (designed to stay on fabric between washes) and synthetic fragrance (the most reported trigger of laundry-related skin reactions). For households with eczema, babies, or anyone with reactive skin, those two ingredient categories are worth examining.
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"Why does OMO cost more than I expected per wash?" At $30 for 2kg and 40 washes per pack, OMO Active Clean works out to $0.75 per wash at standard RRP. That's higher than many buyers realise. Even on half-price specials ($15, $0.375/wash), it sits above the Resparkle price point.
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"Are there natural options that actually clean as well?" The answer, for a well-formulated natural powder with a complete enzyme blend, is yes for everyday family laundry.
The numbers: per-wash cost side by side
Per-wash cost is the honest comparison metric. Pack price is not, because different products have different doses and different load counts.
| Product | Pack | RRP | Stated washes | Per wash |
|---|---|---|---|---|
| OMO Active Clean Powder | 2kg | $30.00 | 40 | $0.75 |
| Cold Power Advanced Clean (for context) | 4kg | $21.00 | ~80 (est.) | $0.26 |
| Resparkle Natural Laundry Powder | 600g | $18.00 | 55 | $0.33 |
Source: Coles product listings (2026-05-26), Resparkle PDP. All prices at standard RRP, no specials or subscriptions.
OMO is frequently sold on special at half price ($15 for 2kg = $0.375/wash). Even at special pricing, Resparkle's $0.33/wash remains competitive. At RRP, the gap is significant: $0.42 per wash more than Resparkle.
For a family doing 5 loads per week, that RRP difference is $109/year more expensive than Resparkle. On special pricing it's around $19/year.
OMO vs Resparkle: full comparison table
| Dimension | OMO Active Clean Powder | Resparkle Natural Laundry Powder |
|---|---|---|
| Price (RRP) | $30.00 / 2kg | $18.00 / 600g |
| Washes per pack | 40 | 55 |
| Price per wash (RRP) | $0.75 | $0.33 |
| Dose | 1 scoop normal; 1.5 scoops heavy | 2-3 teaspoons |
| Surfactant type | Anionic surfactants (alkylbenzene sulfonate) | Coconut surfactant (EWG 1) |
| Optical brighteners | Yes (named ingredient category) | No |
| Synthetic fragrance | Yes ("Perfume") | No (essential oil or fragrance-free) |
| EWG per-ingredient ratings published | No (redirects to unilever.com.au) | Yes, every ingredient EWG 1-2 |
| Independent lab test vs named benchmark | Not published | Yes, vs CHOICE #1 supermarket detergent on 5 stains |
| Packaging | Cardboard box (recyclable) | Industrially compostable bag, plastic-free |
| Retail channel | Coles, Woolworths, IGA (all major supermarkets) | Direct-to-consumer (online) |
| Machine compatibility | Front and top loader | Front and top loader |
| Awards | , | Gold + Editor's Choice, 2020 Australian Non-Toxic Awards |
| Made in | Unilever (multinational) | Australia, partners with Brunswick Industries + Brite Industries |
Ingredient by ingredient: what OMO contains and what Resparkle doesn't
Optical brighteners
OMO Active Clean lists "Optical Brighteners" as a named ingredient category, paired with "Activated Oxygen Bleach" for whitening and brightening. Optical brighteners are synthetic compounds that make fabrics fluoresce under UV light, making whites look brighter than they actually are. They work by staying on the fabric between washes rather than rinsing out.
EWG flags optical brighteners for several concerns: they persist in the environment and in wastewater, they don't biodegrade readily, and they have been associated with developmental and reproductive toxicity concerns in the research literature. For households with young children, or anyone washing against sensitive skin all day, optical brighteners staying on fabric is worth knowing about.
Resparkle contains no optical brighteners. The EWG-1-rated cleaning chemistry (enzymes, sodium percarbonate, coconut surfactant) does the cleaning without UV-enhancement tricks.
Synthetic fragrance
OMO Active Clean includes "Perfume" as an ingredient. In Australian labelling rules, "Perfume" or "Fragrance" on a label can cover dozens of individual compounds without itemising them. Synthetic fragrance is the most commonly reported trigger of skin reactions in laundry products, reported in consumer surveys, dermatology referral data, and manufacturer customer service feedback.
Resparkle offers a Fragrance-Free variant that eliminates this surface entirely, and a Lemon Eucalyptus variant using Australian-sourced essential oil. For households with reactive skin, the difference matters.
Surfactants
OMO Active Clean uses anionic surfactants from the alkylbenzene sulfonate family. These are effective petroleum-derived surfactants; they clean well. EWG rates linear alkylbenzene sulfonates at C in its Healthy Cleaning Guide, partly due to high chronic toxicity to aquatic life flagged by the EU Ecolabel program.
Resparkle uses a coconut-derived surfactant, rated EWG 1. Lower aquatic toxicity profile.
Enzymes and cleaning core
Both products use enzyme blends for stain breakdown. This is the shared foundation of modern laundry chemistry. Resparkle's natural enzyme blend (EWG 1) covers protein and starch. OMO's enzyme system covers a similar range. The core cleaning performance is comparable on everyday household loads.
Where OMO has an edge
Optical brighteners genuinely make whites look brighter. If visual whiteness on bedsheets and dress shirts is your primary metric, OMO wins that specific comparison. It also wins on retail accessibility: OMO is at every supermarket in the country.
Full EWG ingredient comparison
| Ingredient | OMO Active Clean | Published EWG | Ingredient | Resparkle | EWG |
|---|---|---|---|---|---|
| Anionic surfactants (LABS) | ✓ | C (concern) | Coconut Surfactant | ✓ | 1 |
| Nonionic surfactants | ✓ | 1-2 | Sodium Carbonate | ✓ | 1 |
| Optical Brighteners | ✓ | Concern | Sodium Percarbonate | ✓ | 1 |
| Activated Oxygen Bleach | ✓ | 1-2 | Sodium Carboxymethyl Cellulose | ✓ | 1 |
| Enzymes | ✓ | 1 | Sodium Metasilicate Pentahydrate | ✓ | 2 |
| Alkalis | ✓ | 1-2 | Sodium Citrate | ✓ | 1 |
| Sodium Carbonate | ✓ | 1 | Natural Enzyme Blend | ✓ | 1 |
| Sodium Sulphate | ✓ | 1-2 | Essential Oil Blend (optional) | ✓/— | n/a |
| Perfume | ✓ | Concern | , | , | , |
| Polymer | ✓ | 1-2 | , | , | , |
| Antifoam | ✓ | 1-2 | , | , | , |
EWG ratings: OMO ingredient categories sourced from omo.com.au product description and EWG substance database. Per-ingredient EWG ratings are not published by OMO/Unilever; ratings above reflect EWG's own substance entries for each named category. Resparkle per-ingredient EWG ratings per Resparkle PDP (brand-published).
Independent lab testing: what the evidence shows
This is the comparison axis where the gap is clearest.
OMO Active Clean has not published independent lab test results benchmarked against a named Australian reference detergent. Cleaning claims are formulation-led (enzyme marketing, oxygen bleach messaging) rather than benchmarked. OMO appears in CHOICE's historical laundry test data, check CHOICE for its specific rating, but has not published brand-commissioned comparative test data against a named benchmark on its own product pages.
Resparkle Natural Laundry Powder has been independently lab tested to outperform CHOICE's #1-rated supermarket detergent on five common stains. That test answers the performance question directly, against the same benchmark CHOICE uses. Per-ingredient EWG ratings are published on the product page.
One side has done the test and published the result. The other hasn't. That's the meaningful transparency gap between a natural powder built on proof and a mainstream detergent built on brand recognition.
Where Resparkle doesn't win
Naming the honest gaps:
- Price per wash at RRP. Resparkle ($0.33/wash) is cheaper than OMO at RRP ($0.75/wash), but the comparison changes significantly when OMO is on special. At Woolworths half-price ($15 for 2kg, $0.375/wash), the gap is narrow. Families who buy OMO exclusively on special narrow Resparkle's cost advantage to roughly $0.04/wash.
- Supermarket availability. OMO is in every major supermarket in Australia. Resparkle is online only. If you need laundry powder tonight, OMO is the answer.
- Brightness on whites. Without optical brighteners, white fabrics won't have the UV-enhanced brightness of an OMO wash. That's a cosmetic difference, not a cleaning failure, but it's real.
Frequently asked questions
Is OMO safe for babies and young children?
OMO Active Clean contains optical brighteners (designed to remain on fabric) and synthetic fragrance. For very young babies or children with eczema or sensitive skin, dermatologists commonly recommend eliminating fragrance and optical brighteners from laundry products as a first step. Families shouldn't have to choose between gentler ingredients and effective cleaning. Resparkle's Fragrance-Free variant addresses both without a performance trade-off on everyday stains.
Why does OMO cost so much more per wash than it seems?
The key is the 40-wash count on a 2kg pack. At a standard dose of approximately 50g per load, 2kg delivers 40 washes. At $30/pack, that's $0.75/wash. Buying OMO on a half-price special brings it to $0.375/wash. Most buyers assume a 2kg pack at $30 is better value than an $18 pack with 55 washes, until the per-wash math is done. Concentration matters.
What stains does Resparkle handle compared to OMO?
Both products use enzyme blends (protease for protein stains, amylase for starch). Resparkle's natural enzyme blend rated EWG 1 covers the five stain categories independently tested against CHOICE's #1 supermarket detergent: coffee, wine, chocolate, grass, and blood. For trade-strength grease or set-in red wine on pure white fabric, a pre-treat with Resparkle's Universal Stain Remover before the main wash closes the gap.
Does Resparkle work in front loaders?
Yes. Resparkle doses at 2 to 3 teaspoons per load and is low-sudsing, appropriate for HE front-loader machines. The smaller dose compared to OMO's scoop is correct, not under-dosing. It's one reason Resparkle is more concentrated than it looks.
See the proof
55 washes at $0.33 each. Every ingredient EWG 1-2. Independently lab tested to outperform CHOICE's #1 supermarket detergent on five common stains. Plastic-free industrially compostable packaging.
Read the lab test results on the product page
Further reading
- Natural laundry detergent vs synthetic: what's actually different, surfactant chemistry, EWG framework, and what the ingredient categories actually mean
- Best natural laundry detergent Australia 2026, full ranked guide to the Australian natural laundry category
- Best natural laundry powder Australia 2026, powder-specific cornerstone with dose and cost-per-wash tables
- Eco laundry powder Australia: the complete buyer's guide, how to evaluate eco detergents beyond the label
- Best natural laundry detergent for eczema Australia 2026, for households where skin sensitivity is the primary filter
By the Resparkle team, a small family business based in Brisbane. Last updated: 2026-05-26.
Sources
- OMO Active Clean product page (ingredient categories and dose): https://www.omo.com/au/laundry/detergent/powders/active-clean.html
- OMO Active Clean 2kg pricing at Coles: https://www.coles.com.au/product/omo-laundry-powder-active-clean-front-and-top-2kg-2731561
- OMO Active Clean 40 washes per 2kg: confirmed from Coles product URL descriptor and OzBargain deal listing
- EWG Healthy Cleaning Guide, linear alkylbenzene sulfonates substance group: https://www.ewg.org/cleaners/substance_groups/42-LINEARALKYLBENZENESULFONATES/
- EWG Healthy Cleaning Guide, optical brightener concern: https://www.ewg.org/cleaners
- ACCC, "Making environmental claims: a guide for business" (December 2023): https://www.accc.gov.au/system/files/greenwashing-guidelines.pdf
- Resparkle Natural Laundry Powder product page: https://resparkle.com.au/products/natural-laundry-powder
- 2020 Australian Non-Toxic Awards, Gold + Editor's Choice (Resparkle Natural Laundry Powder)
- Environmental Working Group Healthy Cleaning ingredient database: https://www.ewg.org/cleaners
Substantiation note: every comparative claim in this article is sourced to either OMO's own published product pages and ingredient category descriptions, verified retailer pricing, EWG's public substance database, or Resparkle's own published material. Internal substantiation log: _research/article-34-substantiation.md.