DIY Tub Bombs Ideas & Methods!

Sharing is caring!

On this put up I’m going to provide you step-by-step directions on the best way to make your personal diy tub bombs! This selfmade tub bomb recipe is tremendous simple to make and so enjoyable to make use of! Create a spa-like expertise with a pleasant heat tub, a glass of wine and selfmade fizzy tub bombs!  This enjoyable tub bomb challenge incorporates simple to search out, pure substances that come collectively for an opulent tub time expertise. 

Large jar with bath bombs

Disclosure: This put up incorporates affiliate hyperlinks, that means, at no further value to you, I’ll earn a small fee should you click on via and make a purchase order. Be taught extra

Ever had a type of DIY makes an attempt the place the whole lot went incorrect and what was presupposed to be simple became a 2 day lengthy ordeal? That is the way it went with studying to make my very own tub bombs. First I used to be unprepared with substances and didn’t have sufficient citric acid. Then I didn’t have sufficient corn starch. Subsequent, I shortly found I purchased the worst molds! I re-made and re-worked my DIY tub bombs 3 instances! Let’s simply say, I discovered lots of what do to do and what to not do! I employed my daughters helps since they’re residence for the summer time as effectively so between the three of us, we obtained tub bombs found out and have all the ideas and tips so you may make the proper tub bomb with out the trial and error!

The Science Behind Tub Bombs:

The two substances you will need to have with a view to make your personal tub bombs are citric acid and baking soda. A chemical response happens between these 2 substances and you will need to have them each. All different substances aren’t 100% essential.

According to Live Science

The fizziness of tub bombs comes from the chemical reactions that occur when the baking soda and citric acid come into contact with water, Wooden-Black instructed Stay Science. Baking soda, or sodium bicarbonate, has the chemical system NaHCO3. In water, baking soda shortly dissolves, and the positively charged sodium (Na+) breaks aside from negatively charged bicarbonate (HCO3-). [Goopy Science: How to Make Slime with Glue]

In the meantime, the citric acid additionally dissolves, with a single hydrogen ion (H+) separating from the remainder of the molecule, Wooden-Black mentioned. Then, that positively charged hydrogen from the citric acid and the negatively charged bicarbonate from the baking soda mingle, in a short time present process a collection of reactions. One of many finish merchandise is carbon dioxide (CO2). As a result of carbon dioxide is a gasoline, it kinds small bubbles within the tub water, creating a pleasant fizz.

To make tub bombs, you will need to use 1 half citric acid to 2 elements baking soda. For instance, should you use 1 cup of baking soda, you’ll want 1/2 cup citric acid. 

Additionally, per 2 cup of dry substances add about 1-2 teaspoons of liquid. On this tub bomb recipe, you will need to add the liquid slowly checking to get the appropriate consistency. You need to barely moisten the combination in order that the powder sticks collectively. Nonetheless, don’t fret should you get an excessive amount of liquid-just add extra baking soda! 

Different DIY Tub Bomb Components:

Epsom Salt is a pure ingredient so as to add to your tub for mineral absorption and detox. 

Cornstarch in a shower bomb merely slows down the response between the baking soda and citric acid. By binding to the baking soda in addition to the citric acid, the cornstarch slows down the speed at which each of them dissolve. The cornstarch prolongs the tub bomb motion. The fizziness might find yourself lasting 2-4 minutes quite than just a few seconds!

Bath bombs on white background

I made 3 totally different batches with totally different important oil mixtures, totally different colours and totally different dried herbs. I added lavender buds to the purple bombs and chamomile flowers and rose petals to the yellow bombs. You possibly can sprinkle herbs on the underside of your mould so they’re seen on the completed bomb or you possibly can combine them into your combination so they’re a shock as soon as they hit a heat tub!

Simply bear in mind no matter you place in your tub bomb has to go down the drain!

Get artistic and add your personal private contact! This straightforward tub bomb recipe would make an awesome present!!

You is perhaps desirous about my DIY Firming Physique Oil recipe. It’s the proper physique moisturizer for after the tub!

DIY Bath Bomb Ingredients

What You’ll Must Make DIY Tub Bombs


  • 1 cup Baking Soda
  • 1/2 cup Citric Acid
  • 1/2 cup Epsom Salt
  • 1/2 cup Cornstarch
  • 1-1 1/2 teaspoon coconut oil
  • 1-1 1/2 teaspoons water
  • 10 drops important oil of your alternative *elective
  • 2-4 drops meals coloring *elective
  • Dried herbs or petals *elective


  • Metallic Tub Bomb Molds
  • Massive Bowl
  • Small Bowl, cup or jar
  • Whisk


    1. Add baking soda, citric acid, Epsom salt and cornstarch in a big bowl.
    2. Combine dry substances effectively.
    3. Soften coconut oil in a double boiler (fill a medium sized pot half method full with water and gently warmth your coconut oil on medium warmth)
    4. In a separate small bowl or jar, add moist substances together with meals coloring and important oil.
    5. Combine your liquid substances effectively till the colour and important oils are evenly dispersed.
    6. SLOWLY add the liquid combination into the dry combination stirring your complete time. We do not need the citric acid to get activated by the liquid.
    7. Test that your closing combination clumps collectively. Assume-wet sand. However do not get too moist! We simply need to have the ability to clump the combination collectively when compacted.
    8. Utilizing stainless-steel molds, pack within the combination into every mould half.
    9. Sprinkle further tub bomb combination loosely on prime of the molds and press combination within the molds collectively.
    10. Twist and take away molds. Faucet the mould to loosen the tub bomb for simpler removing.
    11. Place bombs on parchment paper and permit to dry for 24-48 hours.

    Bowl of dry ingredients

    Dripping food coloring in small jar of liquid

    Pouring liquid into white powder mixture

    Hand clumping white powder

    Hands putting mixture into a mold


  • It is very important notice that tub bomb making shouldn’t be executed in a moist setting. This challenge is just not the proper wet day exercise.
  • The shelf lifetime of tub bombs is 6 months. Citric acid will begin to lose it is fizzy energy after too lengthy.

Did you make this product?

Please go away a touch upon the weblog or share a photograph on Facebook

Mould Choices:

3 yellow diy bath bombs made from muffin tins

Coloration Concepts:

*All the time add mica powder into your liquid since inhaling mica could be hazardous.

Scent Choices:

Jar of Bath Bombs by Bath Tub

Troubleshooting DIY Tub Bombs:

  • In case your bombs are too moist you possibly can add extra baking soda. 
  • In case your bomb is crumbling and never staying collectively, add extra moist substances. Do that rigorously. You possibly can fill a twig bottle with water, witch hazel or alcohol and spray your combination to make sure you don’t add an excessive amount of water.
  • If the bomb fluffs up you’ve added an excessive amount of liquid or added liquid too quick.
  • If the bomb is comfortable, it wasn’t packed down sufficient or it was too moist.
  • If the bomb has bumps the moist and dry substances weren’t blended effectively sufficient.
  • If the bomb cracks down the center, it was not molded correctly. I heard that should you shrink wrap it and wait 24 hours, it is going to come again collectively.
  • If the bomb sticks to the mould the combination was too moist.
  • If the bomb doesn’t float, it’s probably not dry sufficient. Bombs can generally take a number of weeks earlier than they’ll float.

More often than not you possibly can crumble up the bomb right into a bowl and tweak the combination. Not all is often misplaced should you make a mistake with tub bombs! Don’t throw it out simply but!


As a substitute of coconut oil, be happy to make use of olive oil, almond oil, avocado oil, castor oil and many others.

I wish to omit cornstarch in my subsequent batch and am considering of utilizing coconut milk powder as a substitute. From all that I’ve researched I’m certain it is going to work nonetheless, I haven’t tried it but.

So long as you retain the proportions of liquid to powder and don’t omit baking soda or citric acid, you possibly can mess around with substances with a view to obtain totally different advantages and reactions out of your bombs.

A Few Tub Bomb Methods!

  • Attempt utilizing castile cleaning soap as your liquid for plenty of foamy bubbles!
  • For extra nourishment, use all oil in your liquid proportion.
  • Take about 1/4 cup of a tough butter like cocoa or kokum (dry, not melted). Cowl the butter with baking soda and finely chop the butter ensuring it’s coated in powder. Add it to your dry combination. Butter will soften in a sizzling tub and provides further nourishment for dry pores and skin!
  • You possibly can separate a batch into a number of smaller batches, add totally different shade to every batch and layer the totally different colours to make a stunning tub bomb!
  • Utilizing a tablespoon to indent insides of each halves of the mould then fill the indention with one other coloured batch of tub bomb combine in order that once you use it, a shock shade is inside. 

Whereas I had a tough go of constructing tub bombs due to the flimsy plastic molds, I’m planning to purchase the right steel molds and experiment extra. I discovered a Youtube channel referred to as Creative Bath Lab and he or she is the queen of all issues bath-especially tub bombs. She makes probably the most artistic excellent tub bomb each time!

Like I mentioned, what I believed was going to be a simple selfmade tub bombs challenge turned out to be tough and cumbersome so I took to the web searching for solutions. This posts compiles all that I’ve discovered. General, my daughters and I loved this DIY and might’t wait to make extra!

Take to the feedback when you have your ideas or questions!!

xx, Jenni

Sharing is caring!