Many of the products we use for beauty and skin care and around the house are loaded with chemicals that can negatively affect your thyroid. Phthalates — a key element in most fragrances — can lower thyroid hormone production. Parabens (found in many shampoos), and triclosan, an antibacterial agent, are both linked to hypothyroidism. Other chemicals are endocrine disruptors and toxins. Take a look at some of the common chemical-laden products, and healthy, thyroid-friendly alternatives.