Easy Milk Bath Bomb Recipe

This milk bath bomb recipe is easy to put together because almost everything is in your pantry. You can make this luxurious bath bomb in just a few minutes for yourself or to give as a gift.

The combination of milk and oil makes the skin feel so soft. Choose any scent combination of soap fragrance or essential oils and let’s get started.

Horizontal image showing three cream milk bath bombs in a soap dish and on a teal washcloth stack on a white and gray marble counter top with vanilla blossoms.
Make a batch of these milk bath bombs in just a few minutes and learn how to avoid common mistakes.

You Can Make Luxurious Milk Bath Bombs

Here at Ruffles and Rain Boots, I have to make my own bath bombs because I have such sensitive skin. For years, I’ve been creating bath bombs for myself, my daughter, and as gifts for tons of friends, family, and neighbors.

I had a box of powdered milk that was set to expire in about 6 months and had a thought to share this easy recipe with you. Check your pantry for all of these supplies and if you don’t have bath bomb molds, you can use those break-apart round Christmas ornaments in a pinch.

RELATED READING: This Calendula Bath Bomb Recipe Helps the Flowers to Shine

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If you need to gather up supplies, save this to your favorite DIY pin board or share to Facebook. When you’re ready, you will be able to easily find it and get started.

Vertical image showing three cream colored bath bombs made with a simple natural recipe placed on top of a soap dish and teal washcloth stack with a vanilla blossom.

How Do You Make Homemade Bath Bombs?

I share a lot of bomb and fizzy recipes here on Ruffles and Rain Boots. Let’s go over some of the most frequently asked questions when making bath bombs at home. You should be able to gather your supplies, get started, and make them right the first time after reading through these tips.

  • What carrier oil can you use in bath bombs? You can use any vegetable or nut-based oil. I prefer coconut or jojoba oils, but sunflower oil, almond oil, and even avocado oil will work.
  • Bath bombs will last as long as the first-expiring ingredient. Check the dates on everything and the one which expires soonest is the shelf life of the bath bomb.
  • If you prefer to add a scent, use a vanilla, rose, or lavender to keep it light. Milk powder doesn’t have much of a scent so feel free to play with combinations, as well.
  • Powdered goat milk can be substituted for the dry milk powder.
  • Always add the wet ingredients to the dry mixture slowly. See tips below.
  • If you want to make these easy bath fizzies, use only soap colorant (liquid or mica powder). Gel and food coloring can stain a bath tub, a foot bath, the caulking, and even skin.
  • Using bath bomb molds (I use stainless steel) makes the process easier, but the break-apart plastic holiday ornaments will work, too.
  • Always overfill the bath bombs so the mix can be compressed.

Troubleshooting: My Mix is Bubbling! What Do I Do?

As I explain here in my bath bombs and shower fizzy FAQ page, a bubbling mix is a sign of a) too much moisture or b) adding the liquid element to the dry mix too quickly.

Often, there is nothing you can do to save the mixture once it starts bubbling. I will always try to pop it into a silicone mold (any shape) to see if I can salvage it for a quick addition to a foot bath.

Square image close up of 2 sizes of homemade milk bath bombs on a soap dish with a vanilla blossom and teal washcloths all on a marble counter top.

Troubleshooting: My Bath Bombs are Falling Apart!

If you un-mold a bath bomb and it’s just a powdery pile, don’t worry. You have a couple of options.

  1. You can attempt to moisten and re-mold it. When doing this, start with no more than half of the liquid it calls for and add it slowly, 1 tablespoon at a time. Fully incorporate that before adding more.
  2. You can put it in a jar and call it fizzing bath powder. If this is all you can muster, honestly, the kids go crazy for it just like the do the bath bombs. :)

DIY Bath Bomb Recipe

Below is my written and printable powdered milk bath bomb recipe. If you have any questions, please let me know in the comments section below. I’ve been making bath bombs a long time so please feel free to reach out.

Yield: 3 medium, 1 small

DIY Milk Bath Bomb Recipe

square image close up of 2 sizes of homemade milk bath bombs on a soap dish with a vanilla blossom and teal washcloths all on a marble counter top

This easy milk bath bomb recipe is a fun DIY and a simple way to pamper yourself or others. Batch can be doubled but I recommend as-is one time to measure the humidity and moisture content for your area.

Active Time 15 minutes
Total Time 15 minutes
Difficulty Easy
Estimated Cost $5

Materials

  • 1/2 cup baking soda (sodium bicarbonate)
  • 1/4 cup powdered milk
  • 1/4 cup citric acid (I use this)
  • 1 tablespoon coconut oil, melted if not liquid (can use almond, jojoba oil, or other vegetable-based oil)
  • 1/2 tablespoon water

Tools

Instructions

  1. In a large bowl, combine: baking soda, powdered milk, and citric acid. Whisk or incorporate for about a minute, making sure the ingredients are evenly distributed.
  2. In the small jar (or bowl), combine the coconut oil and water. Shake or stir until mixed completely.
  3. While whisking, add the liquid mixture slowly to the dry mixture. Continue mixing, adding about a tablespoon of liquid at a time to ensure the bath bomb mixture does not activate (you do not want it to puff up).horizontal image of steps to make a set of milk bath bombs without coloring for a natural look in a pale cream
  4. Before molding the bath bomb, check the consistency of the mix. It should be that of wet sand - keeping its shape when pressed together in the palm of your hand.
  5. Fill each bath bomb mold's half sphere with an overflowing amount of the bath bomb mix. Press the two sides together, gently twisting them together until the two edges touch.
  6. Allow the bath bombs to dry for 6-8 hours in the mold. Remove and let dry 24 hours until fully set. See tips below for gifting, coloring, scenting, and storage.

Notes

Storage Tips

  • ensure the bath bombs are stored in an air-tight, dry location
  • if wrapping, individually, use a heat gun and cellophane bags
  • your bath bomb will keep for as long as the shortest shelf life of any of your ingredients when stored properly


Coloring and Scenting Tips

  • if incorporating color, use only soap colorants as food dye might dye bathtubs and foot baths
  • pastel colors work best for this recipe as they are calming
  • if you want to add a scent, consider a light vanilla, lavender, or rose


Gifting Tips

  • include a tag on how to use these bath bombs (fill a bath tub or foot tub with warm to hot water, place one bomb into the water, soak)
  • please note that these bath bombs have a shelf life of the product with the least longest shelf life (will likely be the coconut oil)

Recommended Products

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Did you make this?

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More Bath Bomb Recipes You Might Like

  • Avocado Bath Bomb Recipe – If you like these milk bath bombs, you will love the nourishing benefits of avocado, as well.
  • Manly Shower Bombs – Guys can get a pick-me-up, too, without it smelling like flowers. Check out this wicked fast shower melt recipe.
  • Coffee Bath Bombs – Coffee grounds can invigorate your mind when brewed and your body when added to this easy bath bomb recipe.
  • Candy Cane Bath Bomb Recipe – Oh, I love the smell of peppermint and this packs a gorgeous punch.
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Vertical image collage of 3 cream bath bombs on a marble background and a hand holding a bath bomb mold with text which reads milk bath bombs easy diy recipe.

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