Medical News Today | Essential oils may disrupt normal hormonal activity Medical News Today Research has previously linked the condition to essential oils such as lavender and tea tree oil. Such oils are regularly used in personal hygiene and cosmetic products, as well as in laundry detergents and aromatherapy candles and devices. An older ... Are Essential Oils Safe? | Time Will Essential Oils Like Lavender And Tea Tree Make Your Breasts Larger? More evidence essential oils 'make male breasts develop' |