If there’s one thing better than a hot bath at the end of a long day, it’s a bath with a fizzy, fragrant lavender bath bomb. Whether you’re new to making bath bombs or you’ve been whipping up your own for a while, this lavender bath bomb recipe is easy, fun, and leaves your skin feeling soft and pampered thanks to its amazing skin-loving properties.

These delightful little spheres turn your tub into a relaxing lavender bath experience, giving you that perfect spa-like feeling at home. And the best part? You can make lavender bath bombs that are as giftable as they are relaxing.

Purple lavender bath bomb on a white surface.

Here is a complete guide to creating homemade lavender bath bombs using a few natural ingredients and a bit of creativity.

Table of Contents

Lavender Bath Bombs Recipe

These bath bombs not only make your bath feel luxurious but also infuse your bathroom with the calming scent of lavender essential oil.

This recipe uses Epsom salt to help soothe muscles, baking soda and citric acid for that classic fizz, and coconut or lavender-infused oil to moisturize the skin.

Add a pinch of dried or organic lavender flowers, and you’ve got a relaxing bath treat that’s both beautiful and beneficial.

These are also perfect for a DIY gift! Whether you want to spoil a friend or treat yourself, these lavender bath bombs are made to impress. They’re easy to make, budget-friendly, and bath bombs make a thoughtful, handmade gift.

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You’ll Need

Corn starch
Baking soda
Epsom salt
Citric acid
Lavender-infused oil
Lavender essential oil
Purple mica powder
Bath Bomb Mold

DIY bath bomb ingredients in small bowls.

How to Make Lavender Bath Bombs

Mix the cornstarch, baking soda, and Epsom salt in a bowl, then set the dry ingredients aside.

Add the essential oil drops to the lavender-infused oil and stir well until thoroughly combined.

Essential oil bottle held over a bowl of oil.

Gradually pour the oil mixture into the dry ingredients, mixing continuously. The texture should resemble damp, moldable sand. If it’s still too dry, add more infused oil, a teaspoon at a time.

Once the mixture holds its shape, slowly mix in the citric acid.

Next, stir in the mica powder. About one teaspoon should be enough to achieve a nice color.

Dry mixture with purple coloring in a white bowl.

Scoop the mixture into both halves of the bath bomb mold, packing it in firmly. Slightly overfill so the two sides will press together tightly.

Press the molds together and twist until both sides meet and seal.

Gently remove one side of the mold, then carefully remove the other.

Place the bath bombs on a surface to dry for at least 24 hours. They should feel firm and solid. If they’re still crumbly, give them more time to harden.

Finished lavender bath bomb on white tile.

Tips & Suggestions:

Essential oils are optional.
Any carrier oil works. I used lavender-infused oil.
You can also use lavender flowers inside the bath bombs if you want, but not necessary.

Tips for Making Bath Bombs Perfectly

Here are a few extra tricks to make your lavender bath bombs truly top-notch:

Check the consistency: Your bath bomb mixture should have the texture of wet sand and hold its shape when squeezed. If it crumbles, add a little more oil mix or a spritz of witch hazel.
Don’t add too much oil: It can prevent the bombs from hardening correctly. Stick to the recipe and add the oil slowly.
To get rid of clumps, Use a sifter or break apart large chunks by hand when mixing dry ingredients like cornstarch and baking soda.
Add the oil mix in slowly to avoid activating the fizz prematurely.
Use your hands to feel the texture as you mix—this will help you know when the consistency is right.
Press down firmly when filling your mold. This helps ensure the bath bombs hold their shape and don’t fall apart.
Half of the mold should be slightly overfilled, then pressed with the other side.
Harden overnight before using or gifting.
Allow to dry completely for at least 24 hours.
Use silicone or metal molds for the best results.

Lavender bath bomb next to dried lavender.

How Many Bath Bombs Does This Make?

This recipe will make about three bath bombs, depending on the size of your bath bomb mold. If you’re using a smaller silicone mold, you might get 4-6 mini bombs.

Customize Your Lavender Bath Bombs

Once you’ve mastered the basics, you can start experimenting. Here are a few fun variations:

Add dried lavender buds or a pinch of dried lavender on top for decoration and a little extra luxury in the tub.
Use coconut oil instead of lavender-infused oil for a slightly different scent and skin-loving feel.
Add ounces of polysorbate 80 (about 0.2 oz) to help disperse oils and colorants in the water without leaving a ring in your tub.
Mix in other essential oils like chamomile or eucalyptus for added benefits.
Swap purple mica powder for other natural colorants if you want variety in your bath bomb collection.
Get creative with silicone molds to make heart shapes, stars, or other fun designs.

How to Make Bath Bombs at Home

The fizz in your bath bomb comes from the chemical reaction between baking soda and citric acid. When they hit hot bath water, they bubble and release carbon dioxide, creating that satisfying sizzle.

Add skin-softening oils and calming lavender essential oil, and you’ll have a dreamy spa moment in a tub.

Top view of a purple bath bomb beside dried lavender.

Why Use Polysorbate 80?

If you’ve ever used a bath bomb and ended up with a slippery tub, polysorbate 80 is your new best friend. It helps emulsify oils and colorants so they mix with water instead of sticking to the tub—and you. Just a small amount goes a long way!

More Delightfully Scented DIY Bath Bombs

If you enjoyed making Lavender Bath Bombs, here are more fun and fragrant bath bomb recipes to try for every mood and season:

Pumpkin Spice Bath Bombs – Embrace cozy fall vibes with the warm scent of pumpkin spice in a fizzy bath-time treat.
Mexican Fiesta Bath Bombs—These vibrant, fiesta–themed bombs will add a splash of color and celebration to your bath.
Best Bath Bombs: Orange Creamsicle – A bright, citrusy blend of orange and vanilla for a refreshing, nostalgic soak.
Strawberries and Cream Bath Bombs – Sweet and fruity with a creamy twist, these bath bombs are perfect for a spa day at home.

Half view of lavender bath bomb near towel and herbs.

Once your bath bombs are fully dry and hardened, you can use them! Drop one into a hot bath water tub and watch the magic happen. The fizz, fragrance, moisturizing oils are the perfect way to relax after a long day.

Whether you’re trying to make homemade lavender bath bombs as a fun weekend project or you’re looking to create a diy gift for a birthday or holiday, this bath bomb recipe is a winner.

It’s simple, satisfying, and smells like a lavender bath dream. Plus, they’re bath bombs are perfectly giftable for friends and family who love lavender as much as you do.

So go ahead—make lavender bath bombs, let them harden overnight, and remove the bath mold to reveal your fizzy masterpiece. Your hot bath and enjoy moment are waiting!