It should be noted that, cosmetics are a completely safe product; they are also a combination of chemicals, so it is not disposable, that they may be the cause of irritation or allergic skin reactions.
Allergies to food, allergies to the medicines: and the cosmetics? Yes, they may also be behind an allergy. Not always the answer to allergic reactions to cosmetics is in the product itself, but in the use we give, as cosmetics, for example, expires.
Another common mistake, also apply the cream before have been washing properly hands or use a product or cream to another area of the body to the recommended. There are some of the most common mistakes when using cosmetics, which also must maintain at suitable locations, avoiding letting them properly open or very high temperatures or exposure to direct sunlight.