Sodium Bicarbonate

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What can’t it do?
Products with this ingredient

Sodium bicarbonate (also known as baking soda) is a very versatile, soluble, white powder. It is found in bath products to help them dissolve nicely in the water, in deodorants to absorb sweat, and in toothpastes and mouthwashes to cleanse and refresh.



Sodium bicarbonate (NaHCO3) is an alkaline chemical compound that occurs naturally in a substance called natron. Natron is a natural deposit that forms in salt lake beds. However, most of the global production of sodium bicarbonate is achieved through a method called the "Solvay process" which involves mixing salt, limestone and ammonia. 

Sodium bicarbonate is a key ingredient in many Lush products and for different reasons. In bath bombs, the powder is mixed with citric acid to create a hard base that will dissolve and fizz when plunged into hot water, helping to diffuse colours and essential oils. It also has a softening effect on hard water. 

In bubble bars, it is mixed with cream of tartar and sodium laureth sulfate to create a fluffy expanding paste which is moulded into a variety of different shapes and left to dry. The result is solid, naked bars ready to fill baths with bubbles without any plastic bottle waste!

In deodorants, sodium bicarbonate can neutralise acids in sweat, limit the growth of odour-producing bacteria, and absorb moisture.

Finally, it cleanses and protects the gums and teeth. The powder increases the pH of saliva and creates a hostile environment for acidic bacteria. In mouthwash, the gentle fizzing of the sodium bicarbonate combined with citric acid cleanses and deodorises without the need for alcohol.

The different types of sodium bicarbonate used in Lush products are of high quality and purity. The one used in bath bombs is sourced from France and in bubble bars, from Turkey. The type used in deodorants and mouth care products is much finer, food-grade and is sourced from the UK. They are all regularly checked to make sure they do not contain heavy metals and pollutants. Depending on the supplier, methods of extraction and transformation process can differ but they have in common the will to make their ecological impact as little as possible.

Sodium Bicarbonate can be found in these products
Products with this ingredient
Sodium Bicarbonate can be found in these products
They're Gone!
Golden Handshake
Hot Hand Mask
Just the job
Deodorant Powder
Powerfully herbaceous
Solid Deodorant
Absorbent and refreshing
They're Gone!
Frozen bath bomb
Bath Bomb
Let it go


How to make bath bombs

Have you ever wondered how to make a Lush bath bomb? They're not just sugar, spice and all things nice you know. Since their creation by Lush co-founder and product inventor Mo Constantine 30 years ago, bath bombs have made waves in bathtubs all over the world - so we don’t blame you for being curious.

How Lush makes Bath Bombs

If you’re looking for the secret to bath bombs with benefits for body and mind, that champion ethical practises, and truly stand the test of time, then you’ve come to the right place. Here’s the inside scoop on all things fizzing and whizzing.

A generous dollop of handmade enthusiasm.

Handmade cosmetics are what Lush are famous for. From Mo Constantine pressing the very first bath bomb in her garden shed, to the 15.1 million bath bombs that splashed out of the UK factory and into your baths last year, handmade is what Lush do best.

With up to 600 people making bath bombs during the busiest period, Lush strive for happy people making happy bath bombs. The physical process of creating bath bombs is put into the hands of compounders rather than machines, meaning they gain the skills and expertise to grow within the business. With a huge range to choose from, Lush bath bombs are as unique and creative as the people who make them, meaning there’s a bath bomb to suit every mood.

How It's Made: Incredible Mum | Lush Kitchen

A pinch of trial and error.

Lush believe in the right to make mistakes, lose everything and start again. Let’s face it - there’s been a few ballistic bombshells, but where would we be today without a little experimentation?

Bath bombs come in all shapes and sizes, with different colours, smells and extra surprises all mixed into a base of sodium bicarbonate and citric acid. These fantastical fizzers can turn your average soak into a playground for the senses. We love to push the boundaries of bathing beyond what you’ve ever experienced before, and while things don’t always go right first time, when things work, they really work. It’s this unique process that created technicolour fizzers such as Groovy Kind of Love, Goddess and best seller Intergalactic, paving the way for bath art masterpieces.

One large scoop of community.

From the forums to #LushLabs, the Lush community has always been the driving force behind the products that get made. As the company has grown and developed over the years, so too has the community, and Lush now spread far and wide across the globe. We wouldn’t be where we are today without our customers, and your stories and feedback have inspired new products, campaigns and conversations.

Lush want to hear what you have to say, which is why we have a dedicated customer care team on hand to help whenever you need. From the good, the bad and the bubbly, spare no details please! The diverse range of voices and feedback from the community helps us to shape how the business is run, now more so than ever. You can join in the conversation using #LushCommunity, and have your say on all things Lush.

Heaps of fresh ingredients.

Fresh matters. The fresher the ingredients are, the more effective they are. When it comes to high quality, ethically sourced and environmentally friendly ingredients, Lush bath bombs rise to the top. We’ve created a range of fresh fizzers to suit every need using ingredients sourced ethically from across the globe.

Working directly with suppliers and producers, the company regularly visit them to know exactly where ingredients are coming from, ensuring we’re practising the most ethical way of sourcing possible. Lush suppliers help protect wildlife as they grow ingredients, bring peace to communities, regenerate damaged land, and much, much more. Lush’s strict Ethical Buying policy means we pack our products with fresh ingredients of the highest quality while safeguarding the land and communities we source them from.