Bath

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Create a Fizzy Bath Bomb
Feel like you're bathing in champagne with this spa-like treat that uses just a few kitchen ingredients.

Try it: Randy Schueller, cosmetic chemist and co-founder of The Beauty Brains, suggests mixing baking soda, citric acid and some essential oils into your next bath: "It makes for a great, fizzy bathtub experience."

Why it works: The citric acid and baking soda combination utilizes the same acid-and-base reaction behind the well-known grade-school volcano project to create thousands of tiny bubbles to fill your bathtub.