Petroleum & Menthol Free For Infants 2 Months+ Pediatrician Recommended No Artificial Fragrances No DyesSafe & EffectiveSoothing chest rub with eucalyptus and lavender oils in a beeswax and shea butter balm. Zarbee's Story Dr. Zak Zarbock, a pediatrician and father, couldn't find effective chemical-free products to keep the whole family healthy, so he created his own products, including handpicked natural ingredients, whenever possible. The result is Zarbee's Naturals.