The synthetic fragrances used in cosmetics can have as many as 200 ingredients. There is no way to know what the chemicals are, since on the label it will simply read "fragrance." Some problems caused by these chemicals include headaches, dizziness, rash, hyperpigmentation, violent coughing, vomiting, skin irritation—the list goes on. Synthetic fragrances should be avoided. Be careful when looking at these because often the lable may say "fragrance of Lavender", or fragrance of "Rose" or similarly popular essential oils. Fragrance of = Synthetic, NOT the real essential oil.