What is a bath bomb?



We’ve all seen them, we’ve all been tempted to use one, and we all remember when #BathBombing started trending – flooding our feeds with photos of ultra-colourful bathwater.


But have you ever stopped to think, what is a bath bomb, really?


Those colourful sherbet bonbons sometimes look good enough to eat, and their sweet smell only adds to that. But here we’re going to let you in on a little secret – not all bath bombs are created equal.


We know, shock and horror, right?


Yes, while all are meant to dissolve in the tub, and most claim to be good for the skin, this sadly doesn’t always get exercised in practice.


We believe bath time is sacred time, so we’re going to tell you what to look for when buying these beauty products and what constitutes a good vs bad bath bomb.

What is a bath bomb, really?

What is a bath bomb 4

Let us start at the very beginning cause someone wise once said, “that is a very good place to start”.


Bath bombs can come in many shapes and colours, but they are usually round and fit nicely in the palm of your hand.


If you’re asking yourself, what is a bath bomb supposed to do? To put it at the most basic level, they are designed to fizzle and dissolve quickly in the water while you’re in the tub doing what we all deserve – relaxing. 


As an invention, they’re actually a relatively new addition to the beauty space but have spawned, and their popularity is only on the up.


In fact, the bath bomb market is expected to grow at a compound annual growth rate of 14.27 per cent from USD 120.61 million in 2017 to reach USD 350.68 million by 2025 in the United States.


As we’ve seen with many beauty trends: what starts in America usually hits Aussie shores, so it helps to know what’s entering our homes.

What ingredients are in bath bombs?

Hands up if you’ve used a bath bomb.


As you watched your tub turn into a cacophony of fizzes and a kaleidoscope of colour, have you ever stopped to think what ingredients are in bath bombs to allow it to do that?


If you answered yes, that’s great news – it means this blog post is for you.


Bath bombs typically consist of three core ingredients:


  • Baking soda,
  • Citric acid,
  • And cornstarch.

Both baking soda and citric acid dissolve quickly in water – this is what creates the fizzing we know and love, while cornstarch binds everything together and prolongs the aforementioned fizzing.

Now companies have tweaked and tinkered with these three ingredients over the years, adding colouring, oils, glitter, star cutouts, unicorns –  you name it –  to create their own spin on things. But if you use the above three ingredients, you can actually make very basic bath bombs at home.


If you feel like running a wee experiment, plug “how to make bath bombs” into Google, and you will be overwhelmed with recipes.


Before you do that, though, we urge you to read on. As we mentioned at the start, not all bath bombs are created equal.


And not all are good for your skin OR the environment.

Bath bomb safety

Now we get to the sticking point – just because bath bombs are easy to make, and are popular as anything, doesn’t mean they’re the saving grace of the beauty world.


Remember when we rattled off those three core ingredients?  You may have noticed citric acid was in there. As the name suggests, that’s acidic, and no good for the skin.


By itself, citric acid helps loosen damaged layers of skin.


On the other side of things, you have fragrances, irritants like glitter, and artificial dyes to give the bath bombs their colour. These harsh chemicals all take a toll on the skin.


If this is not complemented with nourishing, hydrating oils – the more, the better, in our opinion – this can lead to skin dryness.

How to pick the perfect bath bomb

Our number one tip when it comes to shopping is to pay attention to what ingredients are in bath bombs.


That, and please steer clear of glitter that’s not eco-friendly because there are some places you just don’t want to sparkle. The environment is one of those places. We will leave the other for you to figure out…


Now, we understand when it comes to reading ingredients, sometimes it feels like you’re deciphering the enigma code.


So, your safest bet?


Stick to companies that are natural and organic and avoid chemically-formulated bath bombs like the absolute plague.


At Raw Beauty Box, all of our bath bombs are safe for the environment and your body.


We don’t use Palm Oil and are free of artificial colours and harsh chemicals, and just because we’re over-achievers, we’re paraben-free, vegan-friendly, and kid-friendly too.


If you don’t believe us, just take a look at the ingredient list in our Energy Epsom Salt Coconut Oil bath bomb:


  • Goats Milk,
  • Colloidal Oatmeal,
  • Shea Butter,
  • Mango Butter,
  • Buttermilk,
  • Coconut Oil,
  • Hemp Oil,
  • Vodka Absolut,
  • Citric Acid,
  • Arrowroot,
  • Cornstarch,
  • Fragrance and/or Essential Oils,
  • No Added Colour,

Look at all those lovely oils. They mean the bath bomb is so good for your skin you don’t need to cut bath time short. You can actually sit and soak with a good book to unwind from a long day.


Some of our other favourite bath bomb flavours include:


Frangipani, Goats Milk Soak, and Oatmeal Milk and Honey.


Don’t know about you, but that sounds pretty good to us. Whether you are a bath bomb beginner or a bath bomb boomer, pick up your favourite scent here.


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