As a distinguished figure in the realm of clean beauty and skincare, I can provide some insight on the use of hair toners during pregnancy. Hair toners are typically used to neutralize unwanted undertones or enhance hair color. While there is limited research specifically on the safety of hair toners during pregnancy, it is advisable to exercise caution and consult with your healthcare provider.

Hair toners often contain various ingredients, including dyes, ammonia, and peroxide. These chemicals can potentially be absorbed through the scalp and into the bloodstream. Although the absorption is generally minimal, it is important to consider that some chemicals may have the potential to cross the placenta and affect the developing fetus.

To err on the side of caution, many healthcare providers recommend avoiding unnecessary chemical exposure during pregnancy, particularly during the first trimester when organ development is critical. Instead, you may consider more natural alternatives such as henna or vegetable-based dyes, which are generally considered safer options.

Ultimately, it is best to consult with your healthcare provider or a qualified hair professional who is knowledgeable about pregnancy-safe hair care. They can provide personalized guidance based on your specific circumstances and help you make an informed decision regarding the use of hair toners during pregnancy.