Do not apply on or near the face of infants or young children. Menthol vapors can affect breathing. For older kids, use extra-low dilutions and ask a pediatric clinician first.

Food-level exposure is generally fine. Therapeutic doses and strong topical use are less clear. If breastfeeding and using topically, apply after a feed and wipe off before the next. When in doubt, ask your provider.

No. Essential oils are highly concentrated and can irritate the mouth and stomach. For ingestion, only use properly formulated enteric-coated capsules and follow medical guidance.

It can. Menthol relaxes the lower esophageal sphincter, which may increase reflux in some people. If you have GERD, be cautious or skip internal use.

Enteric-coated peppermint capsules have decent evidence for reducing overall IBS symptoms and belly pain. Follow label directions or your clinician’s advice. If you notice heartburn or reflux, stop.

Jojoba, grapeseed, fractionated coconut, or sweet almond. Choose unscented, high-quality oils.

Start low. Face: 0.5 to 1% Body: 1 to 3%That means 1% is about 1 drop of essential oil per teaspoon of carrier oil.

Dilute to about 10% if you are using a premade roll-on that is designed for temples, or stick with 1 to 3% if you are making your own blend. Dab a tiny amount on temples, forehead, and suboccipital area.

It may take the edge off for some, but the research is stronger for tension headaches. If you get true migraines, talk to your clinician about a full plan and use peppermint as a small add-on.

Best evidence is for two things: easing IBS symptoms with enteric-coated capsules and soothing tension-type headaches when used topically in a proper dilution.