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Sodium Percarbonate

Sodium Percarbonate

$14.50
$14.50
CLEARANCE Back in stock soon

This highly concentrated, multi-purpose powder unleashes the power of active oxygen to deep-clean, whiten, and deodorise without any harsh chemical fumes or toxic residue. 

  • Powerful stain remover
  • Brightens whites and colours

Percarbonate is the key ingredient found in well known laundry soakers as well as many heavy duty cleaners.

What it is & how it works

Percarbonate is washing soda and hydrogen peroxide held together in a dry, stable powder. Nothing else. No fillers, no fragrance, no optical brighteners.

Drop it into warm water and it splits back into its two parts. The hydrogen peroxide releases oxygen, which breaks down the organic matter that makes a stain a stain. The washing soda lifts the pH, which loosens grease and grime so the oxygen can get to work. This is why it is called an oxygen bleach, and why it behaves so differently to chlorine bleach.

Once it has done its job it breaks down to soda ash, water and oxygen. That is why it is safe for septic systems and why you can pour a used soak straight down the drain.

How you'll use it

✅ Soak stained laundry

Pre-soak whites, towels and colourfast washable fabrics to loosen stubborn food, sweat and organic stains before washing.

✅ Brighten whites

Give dull or yellowing whites an oxygen-bleach boost without reaching for chlorine bleach.

✅ Soak tough kitchen grime

Use a fresh warm solution to loosen baked-on food and stubborn residue from suitable, durable non-aluminium items.

✅ Tackle grout and build-up

Put its oxygen-cleaning action to work on suitable grout and durable bathroom surfaces where ordinary cleaning needs extra help.

✅ Suitable for

  • Most fabrics except delicates
  • White and coloured laundry
  • Ceramic and porcelain surfaces
  • Grout and tiles
  • Stainless steel
  • Many hard household surfaces


❎ Avoid using on

  • Delicate items like wool, silk and leather
  • Untreated timber
  • Non dishwasher safe items
  • Aluminium
  • Delicate and painted surfaces
Key Benefits

✅ Bleach-like results, without chlorine.

Lift stains and brighten whites without chlorine fumes or that unmistakable bleach smell.

✅ Spend less on specialised cleaners.

One ingredient can tackle laundry soaks, stains, grout, oven racks and other tough cleaning jobs.

✅ Fewer unnecessary ingredients at home.

One clearly labelled ingredient with no added fragrance, fillers or complicated cleaning blends.

✅ Revive clothes instead of replacing them.

Bring stained, yellowed and dingy washable fabrics back to life and keep them in use for longer.

✅ Refill without the plastic pile-up.

Refill your reusable jar from a home-compostable Earth Bag instead of buying another plastic cleaning container.

✅ One powder. Plenty of jobs.

Keep one hard-working ingredient on hand instead of cupboards full of separate single-purpose products.

Important Info

🫙 Storage

Keep tightly sealed, cool and completely dry. Moisture starts degrading Sodium Percarbonate; stored correctly, the dry powder keeps well for around two years.

⚠️ Safety

Oxidising cleaner. Keep out of reach of children and pets. Avoid breathing dust and avoid contact with eyes; Do not ingest, do not mix with other cleaners, and never store a mixed solution in a sealed container. Make fresh solutions and discard leftovers after use.

View full details

Understand why this works

See how temperature controls oxygen release, why fresh solutions matter, and where Sodium Percarbonate fits compared with chlorine bleach.

Learning Guide
  • 5 stars: 39 (93%)
  • 4 stars: 1 (2%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 2 (5%)
S
Sheryl P. (Australia)

My washing powder is far better now that I added the sodium percarbonate.
The box that I received my products in had a lovely card in it. A great surprise 😮. Nice little touch of appreciation!

Sheryl P. review photo
J
Jeanette P. (Australia)

Great product, beautiful packaging & timely delivery

T
Trixie M. (Australia)

Sodium Percarbonate is a wonderful asset to have in the laundry. It not only brightens colours, but gets out those stubborn stains on clothing. All one has to do is dissolve a tablespoon of SP in 5 litres of hot water, place items in the mix (ensure that they are covered, then leave it to soak overnight. Then wash as usual the next day. Stains gone and colours brighter.
The added bonus is that if you are not on town water, Sodium Percarbonate is safe to use in a septic system. Very simple, no stress.

P
Pauline (Australia)
Chemical free stain remover

I have been using Percarbonate for some time now and love that I can purchase it easily from Under Your Sink. It removes stains safely and without any harmful chemicals. It can be used pre-wash as a soaker or can be added to the wash in the machine.

K
Kate L.N. (Australia)
Really quick service

Arrived within a few days or ordering

L
Lauren S. (Australia)

Quick postage and lovely service. Thankyou!

K
Karen A.
So far so good!

Delivery was prompt with a lovely hand written note. I have only had the products a short time but everything has been fabulous. I am very happy with my purchases and will see what else is on offer.

S
Sally M. (Australia)
My new best friend!

Love the potential of this product! My bathroom says thank you and I have even used it to rejunvinate the above ground pool for the upcoming summer!
My neighbour was cleaning the pool with H*ndy *ndy and was totally impressed when I bought out this product in some boiled water!

S
Sally M.
My new best friend!

Love the potential of this product! My bathroom says thank you and I have even used it to rejunvinate the above ground pool for the upcoming summer!
My neighbour was cleaning the pool with H*ndy *ndy and was totally impressed when I bought out this product in some boiled water!

M
Madelaine A. (Australia)

Works better than I had imagined on whites. So pleased I can use a more sustainable alternative

M
Madelaine A.
Works better than I had

Works better than I had imagined on whites. So pleased I can use a more sustainable alternative

G
Gillian S. (Australia)
Plastic free and works

Works wonders and LOVE that it comes in a paper bag! A stable in my laundry.

G
Gillian S.
Plastic free and works

Works wonders and LOVE that it comes in a paper bag! A stable in my laundry.

N
Nicole B. (Australia)
Best product ever

Love using sodium percarbonate on everything that needs soaking. I use to use napisan but honestly it never really got the stains out. I use this all the time on my tea towels. Will def be purchasing this again

N
Nicole B.
Best product ever

Love using sodium percarbonate on everything that needs soaking. I use to use napisan but honestly it never really got the stains out. I use this all the time on my tea towels. Will def be purchasing this again

G
Gillian H. (Australia)
Laundry Soaker

Sodium percarbonate is an excellent stain remover for laundry. Great it is environmentally friendly too.

G
Gillian H.
Laundry Soaker

Sodium percarbonate is an excellent stain remover for laundry. Great it is environmentally friendly too.

M
Melanie M. (Australia)
Allrounder

There are so many uses for sodium percarbonate. Essential for bathroom, kitchen and laundry.

M
Melanie M.
Allrounder

There are so many uses for sodium percarbonate. Essential for bathroom, kitchen and laundry.

K
Karen G.
Wonderful

So glad I found this safe but super effective product for stain removal.

M
Mandy G.
Didn’t receive my order

Extremely disappointed, I was following tracking and it said parcel wasn’t collected from under your sink. I have countless times tried to contact Annalisa and she will not respond to me or refund my money.

E
Elisabeth L.
Great for Dirty Tea Towels

I use the sodium per carbonate as an oxygen bleach mainly for tea towels and it takes most of the grubbiness out. They definitely look much much cleaner and brighter.

A
Amy L.
perfect

perfect

K
Kirsten L.
Fantastic stuff!

Love this stuff for safely soaking materials. Will never buy Napisan again!

K
Kelly M.
Love this product. Gets rid

Love this product. Gets rid of tough stains and grease. I’ve already used one bag, and now on to my second.

K
Kassie P.
Best Stain Remover!

I love this stuff! It is THE best stain remover - especially in hot hot water. I add it into my washing, paste it onto stains, and soak on my whites and lights in it.

K
Kylie M.
Great

Great

A
Anthea H.
Magic

What can I say. Brilliant ingredient for cleaning, especially for getting stains out of clothes.

H
Helen D.
Love this stuff!

Great ingredient to have on hand for all of my stain removing needs. I may be imagining it but this seems to work a lot better than supermarket equivalents I've used in the past - love it!

J
Julie W.
Ummmm

I find it interesting that you ask for a review 45 mins after delivery. The only thing is it hasn’t been delivered! The tracking app said it was delivered at 2.09pm. It is now 5pm and no delivery. Hence the one star.

B
Barbara H.
Clear as crystal

I love this product & use it in my kitchen & laundry. Would recommend to anyway wanting to replace harsh chemicals & fillers

K
Karen B.
I tried the crystal clear

I tried the crystal clear as a pre-soak on my white work shirts and I love the result. Beautiful and bright without using any chemicals - what more could you ask :blush:

A
Andrew R.

In a lot of the photographs the jars have labels showing the contents, Sodium Percarbonate etc. , yet the only labels I can find on the website are for finished products, Washing Powder etc. Do you still make these ingredient labels?

Analisa from Under Your Sink

Hello and thank you so much for your question. I actually don't have the ingredient labels online at the moment, but you know what - I can surely change that! In the meantime, if you let me know what you need I am happy to provide labels for anyone in need. Thank you