Anyone with tweens can probably relate to the bath bomb craze that is currently in full swing. If you’re not already on board, bath bombs are hard-packed mixtures of dry ingredients which effervesce (fizz and bubble!) when wet. They’re an extra special treat for bath time.
We’re most definitely fans at our house but, just like with anything, bath bombs can either be full of artificial fragrances and other unwanted ingredients or be au naturale. So, this holiday season, we set out to make our very own Homemade Lush Bath Bombs. And that’s because we thought they’d be a super fun DIY gift for friends and grandmas, and (the best part) – we’d know exactly what is in them!
Sponsor Shoutout: Plant Therapy
Just because we don’t want artificial fragrances (or colors) in our bath bombs doesn’t mean we don’t want any fun scents at all! So, we were excited to use some of the holiday essential oils from our lovely sponsor Plant Therapy for this project. Candy Cane bath bombs? Yes, please!
Essential oils have been around for centuries and are concentrated, volatile, aromatic liquids obtained from the fruits, seeds, flowers, bark, stems, roots, leaves or other parts of plants. Plant Therapy offers only 100% pure essential oils and is one of the few companies who offer USDA Certified Organic options. All of their oils go through multiple rounds of testing and are always free from additives, adulterants and dilutions to uphold the highest quality. While you can certainly find many essential oil options out there, know that they are not all made the same, and finding a quality product is essential. Which is why Plant Therapy has been a longtime partner of ours!
As a bonus, new customers can take 10% off of their first order with code 100DAYS10. A great reason to try Plant Therapy!
Supplies Needed for Homemade Bath Bombs:
- Baking soda
- Citric acid
- Epsom salt
- Cornstarch
- Powdered all natural food coloring (optional)
- Coconut oil
- Essential oils (optional, but recommended)
- Prizes to put inside (optional)
- Rubber gloves (optional)
- Large mixing bowl
- Small mixing bowl (or glass measuring cup with a spout)
- Measuring cups/spoons
- Bath bomb molds (or muffin tin)
- If gifting: Plastic molds you can give away or plastic used for shrink wrapping
Homemade Natural Bath Bombs
Ingredients
- 1 cup baking soda
- 1/2 cup citric acid, anything acidic can damage some countertops (especially marble) so be careful!
- 1/2 cup Epsom salt, recommended to me by my chiropractor to help with sore muscles
- 1/2 cup cornstarch
- 2 teaspoons all natural food coloring, optional (natural powdered food coloring activates when wet in the tub and will not stain)
- 2 tablespoons coconut oil, melted/warm
- 1 teaspoon water, do not use more than this!
- 10 drops your favorite essential oil, we used Plant Therapy essential oils
- prizes to go inside - optional!, (we used "Magic Grow Capsules" that expand when wet)
Instructions
-
In a large bowl whisk together the baking soda, citric acid, Epsom salt, cornstarch and (only if using) powdered food coloring.
-
In a separate small bowl combine the melted coconut oil, water and essential oils. (We used peppermint, but I’m guessing that this would work great with lavender, sweet orange or chamomile.)
-
While continuously whisking, very slowly drizzle the liquid ingredients into the dry ingredients until well combined. The outcome (as pictured below) should be similar to a dry, crumbly sand and should not be a "wet" consistency. Warning: If mixture gets too wet it will activate the fizzy part of the bath bomb too soon!
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TIGHTLY pack the mixture into each side of the mold then press the two sides together. Ideally let it stay in the mold overnight, then lightly tap around the mold with a spoon to very carefully open and remove bath bomb. Finished product will still be somewhat fragile, so be careful!
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A Note about Molds and Gifting: I've read the stainless steel molds work best, so that's what we used with no problems. Bath Bombs (both homemade and store bought) can be fragile though, so we plan to transfer into same-size plastic molds for gifting. Alternatively, you can use a hair dryer on shrink wrap baggies made for the purpose of packaging bath bombs. I ordered a set that includes both options for our gifts this year. Either way, I would definitely make sure the DIY bath bombs are protected before handing them over!
Recipe Notes
The number of bath bombs this recipe will make is approximate. It will depend on the size of your molds.
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Gottes Belle Farm
December 13, 2017 at 3:16 pmFun! thanks for posting this recipe. It got me motivated to make my Fizzy Bath Soak recipe!
Michelle Robertson
December 15, 2017 at 9:51 amSo excited to see this! My kids love bath bombs and I recently grabbed a container at the store that were red and called Rudolph noses, cute right? Both my kids got a rash from using them :( So I told them we should try making our own and then your post dropped right in to my inbox! I know what we’ll be doing over Christmas break, thanks so much!
Linda McArthur
December 16, 2017 at 3:52 pmThank you for sharing this bath bomb recipe! It looks like fun for the kids!
Erika Claves
December 17, 2017 at 4:21 pmThese were a fun project. We used matcha tea powder as the coloring and it made them a pretty light green and then added a eucalyptus/lemon blend for the scent. Had some problems getting them out of the molds (even with a lot of spoon tapping) so we rubbed the molds with coconut oil before filling them and they released much more easily.
Anne Leba
December 17, 2017 at 11:11 pmThese were a bit tricky to make, but once I got the hang of it, they turned out nice. I didn’t realize that you needed to knock the spoon along the seems, not the outside of the mold!We will see how they hold up once I dry them out overnight. Excited to share these as teacher gifts.
Christine Hurd
December 25, 2017 at 1:30 amMy daughter is allergic to citrus, is there something else I can substitute for this?
Amy Taylor (comment moderator)
December 29, 2017 at 4:26 pmHi there. We’ve not tried any substitutions.
Leanne Macrae
March 14, 2018 at 8:18 pmI’ve heard cream of tartar used as sub. Google it
Alicia
December 30, 2017 at 10:21 pmWhy the citric acid? Just wondering if I could leave it out and still have it work.
Amy Taylor (comment moderator)
January 3, 2018 at 12:58 pmHi there. It helps create the chemical reaction that makes the bomb fizz and dissolve.
Leanne Macrae
March 14, 2018 at 8:17 pmI’ve heard cream of tartar used as sub. Google it
Heather R.
February 23, 2019 at 5:59 pmCitric acid and baking soda are the primary ingredients in all bath bombs/fizzies. The combination of the two when water hits it is what makes the fizz.. just like the volcano experiment we do with kids or in science class:) I have heard of bath bombs somehow being make without the citric acid but I’m not sure what it’s used instead, you’d have to so some research.
Susan
February 10, 2018 at 10:34 pmHow do you keep them from flatten out after you take them out of the molds?
Leanne Macrae
March 14, 2018 at 8:15 pmLess oil/essential oil and make sure the moles are packed well and squished hard together. Humidity is also bath bomb enemy. Put somewhere dry and cool. Maybe even fridge. I like using coconut oil as it hardens when cool. Not an everyday use thing tho, as coconut oil can clog drains if used too much
Laurel
March 10, 2018 at 1:55 pmAny other suggestions than cornstarch? I never knew these had cornstarch in them! Plan to make some with my daughter over her spring break!
Amy Taylor (comment moderator)
March 13, 2018 at 9:28 amHi there. We’ve not tried other variations of this recipe.
Leanne Macrae
March 14, 2018 at 8:12 pmArrowroot powder
Kelly
April 21, 2018 at 3:56 pmUse recipe as you normally would. Just without the cornstarch. It molds better as well.
Leanne Macrae
March 14, 2018 at 8:24 pmSo we made these tonight. (My girls are 7 & 9)
Fun recipe. We used Bergamot essential oil and made 2-toned blue/green balls. It’s been about 8 years since I’ve made them but I additionally use a spray bottle with water to moisten the dry mixture gradually without activating it. If the mixture does activate stir like mad to stop it hopefully. Thx for the recipe
Jennifer
March 20, 2018 at 12:38 pmWhat would happen if you used liquid food coloring? Most containers of food color powder are $5+ for a single ounce of a single color. Any suggestions of a good company powder that fits a budget?
Amy Taylor (comment moderator)
March 27, 2018 at 8:46 amHere ya go: https://www.amazon.com/McCormick-Color-Nature-0-51-oz/dp/B01I6U4F92/ref=as_li_ss_tl?tag=100drf-recipe-20&ie=UTF8&qid=1512671375&sr=8-2&keywords=mccormick+color+nature+food+colors&linkCode=ll1&linkId=3c9b6d1a79ad858e5e28dd84c3778b1d
mary
March 24, 2018 at 2:01 amhow many will this recipe make?
Amy Taylor (comment moderator)
March 27, 2018 at 8:44 amHi. It will make approximately 6 medium bombs.
L
April 7, 2018 at 4:27 pmDo you think it would work to put them in silicone baking molds (like for candy making)? Or does it need to be able to close to pack it in better?
Amy Taylor (comment moderator)
April 9, 2018 at 10:43 amHi there. This note from above should help: “I’ve read the stainless steel molds work best, so that’s what we used with no problems. Bath Bombs (both homemade and store bought) can be fragile though, so we plan to transfer into same-size plastic molds for gifting. Alternatively, you can use a hair dryer on shrink wrap baggies made for the purpose of packaging bath bombs. I ordered a set that includes both options for our gifts this year. Either way, I would definitely make sure the DIY bath bombs are protected before handing them over!”
Christen Wences
April 28, 2018 at 3:21 pmI used a silicone mold on a different recipe yesterday. It wasn’t quite as compact as using the molds but it worked just fine and very easy to remove.
Tj
April 16, 2018 at 9:59 pmMy daughter has eczema. Is there a particular eczema bath bomb recipe, or would I just need to experiment with different ingredients? Do you know if adding ground oatmeal would work?
Amy Taylor (comment moderator)
May 2, 2018 at 12:56 pmHi there. We have not made adjustments to this recipe. Let us know if you experiment and how it turns out.
Michelle blake
July 8, 2018 at 4:30 pmI have tried several recipes, but bombs never set, they turn out beautiful and smell wonderful.
Michelle
April 17, 2018 at 3:21 pmBest bath bomb recipe! These bath bombs have a perfect balance of fizz and silky feel. The serving calculator is especially helpful. I made these with my daughter for her classroom economy marketplace at school. We had fun making them together and they were wildly successful at school :-) We loved adding body glitter and mixing several different colors in the mold to give the bath bomb a sparkly tie-dyed look.
Robin D Tisdale-Turner
April 24, 2018 at 1:36 amWhere can I buy molds?
kalaylababe
April 30, 2018 at 4:18 pmAmazon, you can even use Christmas ornaments that open/ close in half. Bulk apocrothy. Try calling a craft store!
Amy Taylor (comment moderator)
May 2, 2018 at 11:42 amHi. Lisa linked to the ones she purchased above. Here it is: https://www.amazon.com/dp/B071DJ41ZL/ref=as_li_ss_tl?tag=100drf-recipe-20&psc=1&linkCode=ll1&linkId=1da4bff1d5a65649232feff3090a2565.
Heather Whittemore
May 17, 2018 at 12:24 pmDoes the food coloring leave any stain in the tub?
Lisa
May 25, 2018 at 10:37 amNot at all!
yumna
May 22, 2018 at 4:25 amany tub stainings?
Lisa
May 25, 2018 at 10:37 amNot at all!
Sarah
May 22, 2018 at 3:45 pmI tried to make these but they were just powder coming out of the molds. It didn’t form a ball in the stainless steel ball mold. Any ideas?
Amy Taylor (comment moderator)
May 25, 2018 at 11:21 amHi there. Be sure you followed the recipe correctly and take careful note of Lisa’s instructions as they can be pretty fragile.
Aine Allison
July 5, 2018 at 9:01 pmCan u put them in like jello shaper
Dena
July 6, 2018 at 1:37 amNo I tried that but it didn’t work
Tracy
July 22, 2018 at 12:38 pmWe have tried several times to make the bath bombs with the metal molds and we cannot get the bombs out of the molds. We have tried using coconut oil and mineral oil to coat the mold, but we still can’ t get them out. Any suggestions? When we do get 1/2 of one out it is very nice, but we want the whole thing.
Maggie Donnell
August 23, 2018 at 11:57 pmput the mix very loosely inside the mold over filling both sides and then press them together tightly and wait for them to dry out :)
Adrienne
December 18, 2018 at 10:46 amPlace bath bombs in the molds into freezer for 20 mins. Take out and hold in your hand to warm the metal. The coconut oil will melt a bit and allow you to remove the bomb easily.
Trieditoutforchristmas
January 4, 2019 at 5:39 pmDid you tap on the outside of the molds? Sometimes you have to tap a lot and hit it fairly hard, but don’t beat the crap out of it
Sevryn W
January 12, 2019 at 2:01 amMaybe if you put celcin wrap on the metal parts inside you can just do the same and when it’s done you can pull it right out! Also by celcin wrap, I know my spelling isn’t good but I mean the clear plastic wrap that you can put around an unfinished meal.
Lila Cappelletti
July 25, 2018 at 4:03 pmHow big are your medium size molds in diameter? I am trying to figure out how many this recipe could make using my mold. Thank you.
Amy Taylor (comment moderator)
August 2, 2018 at 4:52 pmHi. These are the metal mold sizess: Bomb Mold Kit comes with 3 sizes – 1.8″(2 Set), 2.2″(2 Set), 2.6″(2 Set).
Alexa Jordan
August 16, 2018 at 2:23 pmI’ve heard about putting prizes inside, especially if you make them look like pokemon balls. Saw a kid selling those at a school store. So fun to make bath bombs!
Kelly
December 16, 2018 at 7:44 amFirst batch didn’t dry together as a ball. Recipe seems good. We may just stick with silicone molds.
Blythe
January 6, 2019 at 6:45 pmLOVE THIS!!!! MY BATH BOMBS TURNED OUT A-M-A-Z-I-N-G!!!!!
Emilie
January 11, 2019 at 8:44 amI followed this recipe as written, using most of the same ingredients including the dye, and ended up with crumbly bombs, ugh! We went ahead and used it as powder only to find the recipe does stain the tub! The powder still fizzed/foamed so it worked but the tub is now discolored.
I do not recommend!
100 Days Admin
January 11, 2019 at 10:53 amSorry to hear that. Did you use natural powdered coloring? – Nicole
Emilie
January 11, 2019 at 11:05 amYes, I used the same powderd coloring that is linked in the post.
Sarah
February 4, 2019 at 10:39 amThis is my go to for bath bombs. I purchased metal molds from amazon. No matter what I did I had the issue of them sticking into the containers. So I let them dry twice as long and then they come out. Anyone who is having an issue with metal models double your drying time and then take a butter knife and loosen them up gently along the rim of the molds they will start coming out. I started using ice trays for mini bombs. I use normal food coloring instead of powder and it works just as well.
Shine
February 13, 2019 at 9:30 pmIs there anything I can substitute the coconut oil with?
100 Days Admin
February 14, 2019 at 10:13 amWhile we haven’t tried, you can probably use almond oil or regular olive oil. Give it a try and let us know. – Nicole
Jaque
February 19, 2019 at 11:00 pmI use small cupcake tins and only had mine in 10 minutes and flipped over with waxpaper cuz 1 got 36 and only had 24 of them. No problem. If poweredy need more coconut oil I always ajust. .r u making sure can form a ball begfore even putting in mold cuz if doesn’t stick 2gether be won’t work after. Only 2nd time making learned from 1sr time
Nora
April 25, 2019 at 3:44 pmHow long do these last if you make them and then don’t use them immediately?
Lizzie
June 5, 2019 at 5:41 amDidn’t work for me at all, the mixture didn’t fiz and I put the right amounts of ingredients and didn’t use too much water…