Picture of How To: Make Bath Bombs
Everybody loves bath bombs. It is like taking a bath in champagne, only without the show tunes and chorus boys. They are fairly simple to make, keeping in mind that the strangest things can make a batch go weird; humidity, room temperature, oil viscosity, the moon rising in the seventh house of Aquarius . . . they are a mysterious wonder.
For this recipe, I am using ingredients that are pretty common, or easy to find in most areas. Essential oils can be found in small amounts at places like health food stores and craft stores often carry essentials and fragrances. Just make sure, if you buy fragrance oil, that you are buying "body safe" oils and not stuff for candles or oil warmers.
So, let's start with a basic recipe in two parts.
Dry ingredients: (By Weight, as measured on a scale.)
  • Baking Soda - 8 ounces
  • Citric Acid - 4 ounces
  • Corn Starch - 4 ounces
  • Salts - 4 ounces ( in these pictures, I used Dead Sea Salts, but mineral salts work too, and are easier to find and significantly less expensive.)
Wet Ingredients:
  • Water - .75 tbsp
  • Essential or Fragrance Oil - 2 tsp (for these I used a Ginger Peach.)
  • Oil - 2.5 tbsp (I used cherry kernel, but any light vegetable oil will work.)
  • Food coloring - 1 or 2 drops. (Your color will look very dark in the emulsion, but will be light in the fizzies, so as to not leave rings around the tub. For this batch I used one drop red and two drops yellow. The final result will be very light peach.)
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Step 1: Blend the Dry Ingredients

Picture of Blend the Dry Ingredients
Begin by putting all of your dry ingredients into a big bowl. Glass is best because it is non-reactive. Whisk or pestle those pesky clumps out. You want a fairly smooth consistency throughout the entire mix.
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I just made these, they are so easy and brilliant. I used coconut oil and musk oil. They look and smell really good. I used a Christmas ice cube tray and it took me two trays to get all the moulds neat, but I got 54 giftable mini fizzies and some, well will just have to use myself, oh dear!

Pikacindy made it!3 months ago

This is my first time making bath bomb and although I made a huge mess in the kitchen, seeing the result really is worth it, thank you for sharing the recipe!!!! :)

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SoapyHollow (author)  Pikacindy1 month ago

These are awesome! Go you!

Hey guys, these are great! I made them yesterday and have packaged them up for my girlfriend this morning! Isn't she lucky it was raining yesterday and I couldn't work :P
I used 2 pairs of measuring spoons to form the molds, they worked well once I had the right consistency. I just forced them together to form a sphere. A 1 Tbsp one for the big ones, 1.5tsp for the medium, and 1/4tsp for the tiny ones.
Over here in a country town in New Zealand, its hard to find the right fragrance oils that are safe for skin. I know I could of ordered online, but it was a matter of now or never,  So while wondering what I could use to add some scent, I remembered how much my gf liked my CK cologne, so just cracked open my bottle of that, and poured about 2tsp of the stuff in. Didn't like being with the water much, but guess it was similar to oil.
Here's a couple of pics, Hope you like them.

they look really cool my mum ordered molds online ages ago and we're making the stuff today
SoapyHollow (author)  Aislinn4 years ago
Sweet! I'd love to see pics when you're done! :)
WOW...that is too cute!!! she"s lucky :)
SoapyHollow (author)  himynameisandy4 years ago
Gorgeous! Go you!
the Secrets of eden ( sells essential oils internationally!
Very pretty and nice job.  thank you for sharing that you used cologne.  I've wondered if it could be used but haven't done a project yet that would let me find out.  You have inspired me!
backcountry5 years ago
OK, here they are! I bought 4 of these molds and one batch filled them with a little to spare. I started early for Valentine's Day so I had time to screw up a couple of batches, but I think these are going to be fine as. Peppermint. Maybe I'll make one more different batch. What about glycerin instead of oil, would that work? I used almond oil, but I wasn't really happy with it.
SoapyHollow (author)  backcountry5 years ago
Those are gorgeous! Word of caution: eucalyptus, peppermint/spearmint/wintergreen type oils in a bath product may give you the ability to levitate and walk on water. (Don't ask how I know...well, you could's a pretty funny story.) Suffice it to say that girly bits and tingly can be a bit, erm...intense. ;) Also, I don't know if you have an Ikea near you, but they make the grooviest silicon icecube trays in various shapes; one of which is hearts. I've used their trays over and over for bombs, traditional soap and glycerin soap and they just last and last. They're cheap and durable. Yay!
i planned on making these for my sister as a birthday present and was hoping to make them peppermint b/c that's her fave smell... what exactly does the "levitation" thing mean...? sorry if i'm just not getting it... :-/
Here's one for you, I made bath salts and you add epsimons salt, could I put that in the bath bomb mix? Or will I blow up ha ha ! Not sure how to spell that salts hope you can read it
SoapyHollow (author)  susie-q5 years ago
Probably. :) Epsom salts are mineral salts. I'm not sure what else you put in the bath salt mix, but it should probably work.
Oh my, I am so glad you mentioned that about peppermint! I've been "stung" by Dr. Brommers before, I should have known better. Now I know I have to make another batch with a different oil. One thing I like about these molds is that ice cube trays would make half hearts (they're flat on one side). These are snap-together, two piece molds. They make full 3d hearts, which I think is cool. I thought they might break apart unsnapping or trying to pry them out of these molds. But no problem, they plopped right out.
SoapyHollow (author)  backcountry5 years ago
Oh cool!
where did you get theose heart molds? They are cute!! I just googled 'fillable plastic hearts' and started clicking. The ones I got are 80 mm (the medium size). In retrospect, they're pretty big, I'd recommend going with the small ones.
soonersseth6 years ago
Great Instructable my mom liked her birthday present
great birthday present idea.... I'd do it too if I could drive to a store to get all the oils and such. "hey mom, can you drive me to the store?" "why?" "to get essential oils." "....why?" ".......because they're essential."
SoapyHollow (author)  codongolev6 years ago
Hee! :)
SoapyHollow (author)  soonersseth6 years ago
Those are so fabulous! Go you!
franinmuc18 days ago

Hi there, These soaps look great! What kind of a place would I go to to get citric acid? And the essential oils - chemist I suppose. Thanks.

franinmuc, you can buy citric acid pretty much anywhere that sells canning supplies. I got mine at walmart for less than 3 bucks!

Hello there, I actually just bought some today from my local Smith's Market Place. I am sure any grocery store or Wal-Mart carries it. I had to ask the pharmacy for it; as it was behind the counter. Paid less than $10 for a tub of it.
Thanks for the tip. I'll ask around. :)
SoapyHollow (author)  franinmuc13 days ago
Also, pool stores often carry it, or you can get it from brambleberry or CamdenGrey via online orders.

I got my citric acid from a wine/cheese making store. I have also found it at in health food stores (sprouts, whole foods) I didn't see it in the canning section of Walmart, but I have heard you can find it there.

Hmmm... no wine and cheese making stores here. I'll check out the health food stores. Thanks.

I just made these as I would like to give one to a friend I am seeing tomorrow! They appear to have come out well. One thing I did was mix my food colouring in with all the wet ingredients - that seemed to help to distribute it well. In the first batch I did a violet colour and used rose water with glycerine in place of oil. It appears to have worked well but the proof is in the tub (right?). The second batch I did in a pink and instead of oil I used cocoa butter, and replaced a bit of the corn starch with coconut milk powder and used almond essence to scent. I bought the moulds in a second hand store and they are like miniature cake pans or old fashioned jello moulds but small. They have a rabbit, a clover shape, a heart and a few other designs - really came out well and unmoulded easily. They are drying in the oven (not heated or anything ) just there to keep the dog hair and cat hair off them. I wanted to try and put coins in one of them but that didn't work out so well. I will try again next batch - I want it to be a bit like a Christmas cake my grandma used to make with money in it! Fun for children (and some adults). Anyway - I know I have gone on but I am so thrilled = thank you for sharing this with us.

Hi ya, we have just made these but the balls won't hold together. Any idea what I have done wrong and what can I do to fix it?

These are temperamental beasts. Sometimes they just won't cooperate. :) Best bet to try and repair crumbly bits is to use a spray bottle/mister and dampen the materials a tiny bit and try to clump it back together. If it doesn't work, then just mix the crumbles with some mineral salts or dead sea salts, and just have fizzy bath salts. :)

The food coloring is staining my skin? Any suggestions?
SoapyHollow (author)  bre.s.rodriguez.99 days ago

Couple of things: one, you could wear those thin food prep gloves, but two, if your dye is deep or plentiful enough that you're staining your hands, it's probably too deep/plentiful for the bombs, in that it might stain ceramic or grout. That said; I usually wear gloves if working with blues or greens, because they tend to be more pigment rich.

achinhing11 days ago

I made my second batch and it was awful. they were wet and grew.

I live in a humid area. how can I prevent this.

queendep13 days ago

I've made several batches for Christmas gifts. I didn't use water, I used witch hazel instead and sunflower oil. LOVE they way it felt when I tried it out! Thanks for posting this!

SoapyHollow (author)  queendep12 days ago
Awesome! Go you!

I am just attempting to make these. I did fine the citric acid fairly easily. I found it in the canning section of the hardware store. I know Walmart also carries it in their canning section. Good luck with yours and wish me luck with mine.

dianas12 months ago

I made bath bombs using that recipe few times and they came out good. My problem is that after few weeks they don`t smell good anymore. Why do they lose the scent?

I`ve tried it with eo and fo. same result

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