NOW Foods Lemon Oil is a 100% pure cold-pressed essential oil expressed from the rind of Citrus limon — a bright, uplifting citrus oil used extensively in aromatherapy for its mood-enhancing, clarifying, and energizing properties. Unlike steam-distilled citrus oils, cold-pressed lemon oil retains the full natural aroma profile of fresh lemon peel, including its characteristic d-limonene content which has been studied for antioxidant and detoxifying properties. In diffusion, lemon oil is one of the most popular choices for uplifting mood, improving focus, and purifying indoor air. It also blends beautifully with other citrus oils, lavender, and peppermint. NOW Foods' Lemon Oil is GC/MS tested for identity and purity. Cold-pressed citrus oils may be photosensitizing — avoid direct sun exposure after topical application. Not for internal use.