I use peppermint daily in my tea and to clear my sinuses by inhaling. I put a drop in my hand and rub hands together and inhale deeply. She clears my body and revitalizes me. She is my emergency deodorant, my emergency breath freshener, and my emergency muscle soother. She goes everywhere I do. 
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Beyond organic in its purity, and carrying the Certified Pure Therapeutic Grade (CPTG) label. The peppermint plant is a hybrid of watermint and spearmint and was first described by Carl Linneaus in 1753. A high menthol content, like that found in the dōTERRA Peppermint essential oil, distinguishes the best quality Peppermint from other products. This is where brand does matter. Store brands may have lower menthol content, making it less effective. Peppermint is a “cool” oil and can be applied topically for a refreshing sensation. I use it for a natural cooling deodorant. Peppermint continues to be one of the best-selling favorites among dōTERRA essential oils. 
Google Peppermint oil to see its many historical and present uses.
 
HOW TO USE
• Use a drop of Peppermint with Lemon in water for a refreshing mouth rinse.
• Re-energize by applying Peppermint to the palms of hands and deeply inhaling.
Apply to back of neck for cooling during hot summer months.
Remember: Essential Oils are metabolized in 2 hours, so reapplication is necessary.