According to the LUSH website, if used as intended, most of their products — including their popular bath bombs — are totally safe to use during pregnancy. The company stated that they follow a set of guidelines created by the International Fragrance Association to "ensure our perfume materials are well within safety levels for cosmetic use, even while pregnant." Other companies that make bath bombs include Victoria's Secret PINK, Fragrant Jewels, and plenty of personal shops on Etsy. There are even DIY tutorials for making your own colorful bath bombs.
Experts say that one thing that you should keep in mind, however, is that whether you are using a bath bomb or squirt of shampoo, you'll want to be careful of the water temperature when indulging in a bath. "Extreme hot temperatures can be a problem during pregnancy," Dr. Sherry Ross, OB-GYN and women's health expert at Providence Saint John's Health Center in Santa Monica, California, tells Romper. "Temperature above 102 Fahrenheit (38.9 Celsius), especially during the first six weeks of pregnancy, can cause defects to the baby’s brain and spinal cord and increase the chance of miscarriages."