Mentha x piperita
Peppermint is a flowering plant in the mint family, that has historical use dating back to ancient Greece, Rome and Egypt civilizations.
✓ Promote cell repair
✓ Support healthy aging
How it works:
Peppermint has historically been used as a tea, flavoring agent in foods, and an essential oil used for skin health in cosmetics. The plant contains a variety of bioactive compounds, such as rosmarinic acid and several flavonoids, primarily eriocitrin, luteolin and hesperidin. Recent research has shown that rosmarinic acid promotes healthy aging by increasing intracellular antioxidants and repairing damaged cells.
Safe and Effective Dosage:
Dosage is highly varied due to its use in concentrated oil, teas, and foods with safe dosage ranging up to 600 mg orally.
RESEARCH &CLINICAL STUDIES
"A review of the bioactivity and potential health benefits of peppermint tea (Mentha piperita L.)"
Peppermint (Mentha piperita L.) is one of the most widely consumed single ingredient herbal teas, or tisanes.
Peppermint tea, brewed from the plant leaves, and the essential oil of peppermint are used in traditional medicines.
Evidence-based research regarding the bioactivity of this herb is reviewed. The phenolic constituents of the leaves include rosmarinic acid and several flavonoids, primarily eriocitrin, luteolin and hesperidin.
The main volatile components of the essential oil are menthol and menthone. In vitro, peppermint has significant antimicrobial and antiviral activities, strong antioxidant and antitumor actions, and some antiallergenic potential.
Animal model studies demonstrate a relaxation effect on gastrointestinal (GI) tissue, analgesic and anesthetic effects in the central and peripheral nervous system, immunomodulating actions and chemopreventive potential.
Human studies on the GI, respiratory tract and analgesic effects of peppermint oil and its constituents have been reported. Several clinical trials examining the effects of peppermint oil on irritable bowel syndrome (IBS) symptoms have been conducted.
However, human studies of peppermint leaf are limited and clinical trials of peppermint tea are absent. Adverse reactions to peppermint tea have not been reported, although caution has been urged for peppermint oil therapy in patients with GI reflux, hiatal hernia or kidney stones.
"Recent studies on rosmarinic acid and its biological and pharmacological activities"
Rosmarinic acid (RA), an ester of caffeic acid and 3,4-dihydrophenyllactic acid (Figure 1(Fig. 1)), is a naturally occurring phenylpropanoid that is commonly found in species of the Boraginaceae family, the subfamily Nepetoideae of the Lamiaceae family, and in lower plants such as ferns and hornworts (Petersen and Simmonds, 2003).
RA was first isolated and purified in 1958 from Rosmarinus officinalis by two Italian chemists, Scarpati and Oriente, who then named it according to the plant that they isolated it from (Scarpati and Oriente, 1958).
The biosynthesis of RA has been extensively studied, and a biosynthetic pathway was first reported in 1970 by Ellis and Towers. They demonstrated that two aromatic amino acids – L-tyrosine and L-phenylalanine – are the building blocks of rosmarinic acid (Ellis and Towers, 1970).
RA has a range of biological activities, making it an interesting material for the pharmaceutical, food, and cosmetics industries.
Here we summarize key messages of recent studies performed on RA and its biological and pharmacological activities.