Lemon Très mauvais Parfum synthétique et naturel No known benefits Lemon at a glance Citrus fruit, AKA Citrus limon and Citrus medica limonum Its oils, juices and extracts can cause skin sensitivity Contains volatile fragrance compounds Has photosensitizing compounds Lemon description Citrus fruit that’s a potent skin sensitizer. The juice from lemon is often touted as being a natural option for brightening skin. The truth is that lemon juice is highly acidic (has a very low pH of 2) and exceedingly sensitising to skin. Lemon juice applied to skin can cause photosensitivty on exposure to sunlight, which is due to a volatile fragrance chemical known as limonene, which is abundant in lemon juice. Lemon, whether in juice or oil form, is a must to avoid in cosmetics. Related ingredients: Citrus Medica Limonum Lemon Juice Lemon Oil