Pure peppermint essential oil is available at Walmart as of May 2015. It can be purchased both in Walmart's stores and through its website. Pure peppermint essential oil can also be ordered from Walmart-approved third-party sellers through the company's website.
Walmart stocks peppermint pure essential oil as part of the Nature's Bounty Earthly Elements aromatherapy line. Walmart's website also lists peppermint oil softgel capsules for sale by one of its Marketplace Retailers as a dietary supplement. However, these capsules contain other ingredients, not all of which are essential oils or herbs. Products such as soap and massage oil that mix peppermint with other oils are also available through the Walmart website.