Lip serums, like any other skincare product, can be safe or unsafe during pregnancy depending on their ingredients. It's crucial to understand that the skin can absorb certain substances, which can then enter the bloodstream and potentially affect the developing fetus.

When it comes to lip serums, avoid those containing retinoids (also listed as retinol, retinyl palmitate, retinyl acetate, retinyl linoleate, and retinoic acid) and salicylic acid. These ingredients are known to pose risks during pregnancy.

Instead, opt for lip serums with natural, nourishing ingredients like hyaluronic acid, vitamins C and E, and plant-based oils such as jojoba oil, argan oil, or rosehip oil. These ingredients are generally considered safe during pregnancy and can provide hydration and nourishment to your lips.

However, it's always best to consult with your healthcare provider or a dermatologist before using any new skincare products during pregnancy. They can provide personalized advice based on your health history and the specific products you're considering.