Citrus Medica Limonum Worst Fragrance Synthetic and Natural No known benefits Citrus Medica Limonum at a glance Plant, AKA lemon, that contains irritating extracts and oils Contains volatile fragrant compounds Its juices and oils can cause photosensitivity Highly acidic and can disrupt skin’s barrier Citrus Medica Limonum description _Citrus medica limonium_ is more commonly known as lemon. It is 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: Lemon Lemon Juice Lemon Oil