Natulim Oxi White Whitener (500 g) Review
Chlorine-free oxygen whitener, ECOCERT certified.
Overview
A sodium percarbonate booster with three enzymes (amylase, lipase, subtilisin). In water it releases active oxygen that lifts yellowing, greyness and sweat marks on collars and cuffs — without chlorine bleach. It's a booster, not a detergent, so it's meant to be used alongside the laundry sheets.
Pros
- Bleach-free and chlorine-free whitening
- ECOCERT certified with full INCI + CAS disclosure
- Works in the machine or as a 1–4 hour soak
- Refill pouches mean you keep the same jar
Cons
- Must be used with a detergent
- Small review base (65 ratings)
- Less effective on cold cycles — best from 30°C
Photos
Images: Natulim.
A closer look
How it works
Sodium percarbonate breaks down into hydrogen peroxide and soda ash in water, releasing active oxygen that oxidises stains. The three enzymes each target a different stain family: starch, grease and protein (sweat, blood). It's the same chemistry as the 'oxygen bleach' powders sold in supermarkets, minus the plastic tub.
Results
Buyers mostly use it for greying towels, white shirts and bedding. Reviews are positive but the sample is small (65 ratings), so treat the average with a little caution.
Certification and packaging
It's ECOCERT-certified as an 'Ecodetergent', the full ingredient list is published with CAS numbers, and refills come in a recyclable cardboard pouch so you keep the original jar.
What buyers say
“Got a grease stain out of a T-shirt — I was worried it would fade the colour, but no. Perfect.”
“Used it twice so far and it looks promising. We'll see over the next few washes.”
Short excerpts from verified reviews on natulim.it, translated from Italian. See more buyer reviews.
How to use it
- Machine: add 2 teaspoons to the drum with your laundry sheet.
- Soak: dissolve 1 tablespoon in hot water (40–50°C) and leave 1–4 hours.
- Wash as usual.
Key specs
| Size | 500 g jar with scoop |
|---|---|
| Active | Sodium percarbonate + enzymes |
| Certification | ECOCERT 'Ecodetergent' |
| Dose | 2 tsp per machine load · 1 tbsp for soaking |
| Temperature | From 30°C; soak at 40–50°C |
| Packaging | Recyclable cardboard, refillable |
Ingredients
Sodium carbonate, sodium percarbonate, sodium sulfate, sodium citrate, sodium lauryl sulphate, amylase, lipase, subtilisin, sodium chloride.
Price and value
One-off price is €11.10; on a subscription it's €9.99 on subscription — 2 teaspoons per load. Shipping is free from €35 (or €25 on a subscription), so bundling products is usually the cheapest way to order.
Who should buy it?
Households with white shirts, towels and bedding that have gone grey or yellow, and anyone replacing chlorine bleach.
FAQ
Can I use it without detergent?
No — it boosts a detergent rather than replacing one.
Is it safe on colours?
It's designed for whites. For coloured stains Natulim sells Oxi Clean.
Is it eco-certified?
Yes, by ECOCERT Greenlife under its 'Ecodetergent' standard.
Related guides

Laundry Detergent Sheets vs Liquid vs Pods: Which Should You Use?
An honest comparison of laundry sheets, liquid detergent and pods on cleaning power, cost per wash, convenience and plastic waste.
Read guide
Are Laundry Detergent Sheets Safe? Natulim's Ingredients Explained
What's actually inside Natulim's laundry sheets, what each ingredient does, and what the PVA debate means for you.
Read guideOther Natulim products we reviewed
Dishwasher Tablets
EU Ecolabel-certified, fragrance-free all-in-one tablets.
Laundry Sheets
Pre-dosed, plastic-free laundry strips that double as softener.
Floor Cleaner Sheets
One sheet in the bucket cleans the whole house — no rinse needed.
This review is based on Natulim's published specifications, ingredient and certification data, and patterns in verified buyer reviews on natulim.it — not on lab testing. How we review.




