Rosemary is cooling oil and used in hair care products. Can be used to treat acne prone skin. Not to be used directly on skin. To be used after mixing with carrier oil. Rosemary oil helps relax the mind and ease cramps and muscle pains. 100% Pure, Only One Ingredient - Our Premium Essential Oils are 100% Pure & Natural – No Additives, Alcohol-Free, No Added-Fragrance and Not Diluted. ALL ESSENTIAL OILS MUST BE DILUTED PRIOR TO TOPICAL APPLICATION to the range of 1% to 5% in your chosen carrier (or 'base').