Parabens are a class of preservatives widely used in foods, cosmetics, toiletries, and medications. They are derivatives of benzoic acid. Benzoic acid occurs naturally in many plants and animals. For instance, benzoic acid can be found in blueberries, grape seed, and tea leaves. It is effective in helping these plants fight off microbial attacks. Parabens are typically used at levels ranging from 0.01% to 0.3%. Due to their long record of safe use, the U.S.-based Cosmetic Ingredient Review (CIR) has concluded that parabens are safe for use in cosmetic products at these concentrations. Furthermore, according to the U.S. Food and Drug Administration (FDA) and the American Cancer Society, consumers need not worry that the use of approved parabens in skin care and cosmetic products will cause them any harm.
Microbes such as bacteria, viruses, and fungi are everywhere. They exist in the water, the air, and the earth. Microbes need water and nutrients to grow and reproduce, and these are plentiful in cosmetics and skin care products. Furthermore, these products are often kept in warm and moist environments, e.g. bathrooms, which are conducive to microbial growth. Under these conditions, even if no one touches the product, microbes like bacteria will grow, reproduce, and secrete toxins. These toxins can be absorbed by the body through the skin. If a suitable amount of preservatives is not added, the product can become contaminated and cause infections.
Be wary of Labels that claims to be "100% natural," "organic," "dermatologically tested," "hypoallergenic," or "eco-friendly". These labels are meaningless as they are not subject to regulation.
Be wary of Labels that claims that collagen and hyaluronic acid can be absorbed by your skin to replenish skin collagen or moisture. These molecules are too big to be absorbed by your skin.
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