Bath bombs are a luxurious treat that can turn an ordinary bath into a spa-like experience, but buying them can get expensive. Luckily, making your own bath bombs at home is easy, affordable, and completely customizable. Plus, they make for thoughtful gifts or a way to unwind after a long day. This step-by-step guide will show you how to create beautiful, all-natural bath bombs using simple ingredients you probably already have at home.
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What You’ll Need
Here’s the full list of ingredients and tools you’ll need to make about 8 medium-sized bath bombs.
Dry Ingredients:
- 1 cup baking soda
- 1/2 cup citric acid (this is what creates the fizz; find it online or at a grocery store in the canning section)
- 1/2 cup Epsom salts (for soothing sore muscles)
- 1/2 cup cornstarch (adds smoothness to your bath water)
Wet Ingredients:
- 2 1/2 tablespoons melted coconut oil (or any carrier oil like almond or olive oil)
- 3/4 tablespoon water
- 20-30 drops of essential oils (choose your favorite scent: lavender for relaxation, eucalyptus for invigoration, or citrus for energy)
- Optional: 1-2 drops of natural food coloring (for a light hue without staining your tub)
Decorative Add-Ons:
- Dried flower petals (lavender, rose, or calendula)
- Cosmetic-grade glitter (optional for a touch of sparkle)
Tools:
- A large mixing bowl
- A small bowl for wet ingredients
- A whisk
- Bath bomb molds (you can also use silicone molds or muffin tins)
- Measuring cups and spoons
Step-by-Step Instructions
- Combine the Dry Ingredients
In a large mixing bowl, whisk together the baking soda, citric acid, Epsom salts, and cornstarch. Ensure there are no lumps, as a smooth mixture will lead to evenly formed bath bombs. - Mix the Wet Ingredients
In a small bowl, combine the melted coconut oil, water, essential oils, and food coloring (if using). Stir gently to mix the ingredients but be cautious of overmixing—this can cause the citric acid to react too soon. - Slowly Combine Wet and Dry Ingredients
Gradually pour the wet mixture into the dry ingredients, a little at a time. Stir constantly as you add the wet ingredients to prevent the citric acid from fizzing prematurely. The final texture should resemble damp sand—able to hold its shape when pressed together without crumbling. If the mixture feels too dry, add 1/4 teaspoon of water at a time until it’s just right. - Add Decorative Touches (Optional)
If using dried flowers or glitter, sprinkle them into the molds before packing in the bath bomb mixture. This will create a beautiful design on the surface of the finished bath bomb. - Mold Your Bath Bombs
Firmly press the mixture into your chosen molds. If using round bath bomb molds, slightly overfill each half before pressing them together. Twist gently to remove excess mixture around the edges, then leave the bath bombs in the molds to set. - Let Them Dry
Allow the bath bombs to dry in the molds for at least 24 hours in a cool, dry place. Once hardened, gently remove them from the molds and let them air dry for an additional 12-24 hours to ensure they are completely firm.
Storage Tips
Store your bath bombs in an airtight container to keep them fresh and prevent moisture from activating the fizzing reaction prematurely. For gifting, wrap them individually in tissue paper or place them in reusable glass jars tied with twine for an eco-friendly touch.
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Customizing Your Bath Bombs
- For skin nourishment
Replace coconut oil with sweet almond oil and add a teaspoon of vitamin E oil. - For calming baths
Use lavender essential oil and sprinkle dried lavender buds into the molds. - For energy boosts
Try a blend of orange and peppermint essential oils with a dash of cosmetic-grade mica powder for a shimmering effect.
And that’s it – all that’s left is to relax!
Ready to dive in? Share your creations with The Lemon Sprout community! Tag us on Instagram with #TheLemonSproutDIY for a chance to be featured.