Q&A: What are some other uses for menthol crystals? (updated)

In the May Q&A, Tash asked: I’d love to know more about using menthol crystals beyond shower steamers and foot cream. They’re intriguing me. I keep opening the container to huff them and shake them slightly because the sound is fascinating me. Are you sure you don’t hang out with my best friend? When she visits,...

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