Wostoo Peppermint Essential Oil is 100% natural and pure, and hence highly concentrated and potent. Always dilute essential oils with a suitable carrier oil, as per the recommendation of a trusted expert or source. For external use only. Keep out of reach of children and pets. Avoid contact with eyes. Check for allergies or sensitivity before use. If pregnant, nursing or under medical care, consult your doctor before use. Store in a cool, dry place.