Despite being an incredible natural ingredient that is a powerhouse at absorbing odors, baking soda is more alkaline than our bodies so in rare instances it can throw off pH balance in some people.  Our classic formulas do have reduced baking soda levels so we find 9/10 baking soda sensitive people are able to use our classic formulas.
A baking soda reaction can manifest in a variety of symptoms ranging from redness and itchiness to a visible rash.  In rare instances it can even affect skin pigmentation (a darkening of skin in the armpit area).  These reactions can crop up every now and again due to changes in the body (hormones) and the environment (cold, dry weather).  They come and go in some people while others can't tolerate baking soda at all.
For this reason, we developed a full line of baking soda free scents to keep even the most sensitive pits feeling fresh! Our baking soda free (BSF) formulas include The Curator, BSF Sexy Sadie, BSF Johnny’s Cash and BSF Blackberry Betty. This formula uses dietary magnesium instead of baking soda, and has soothing qualities that have helped many armpits through the discomfort of a baking soda sensitivity.
Some people find that taking a small break from baking soda is enough and they are able to start using their baking soda formula again once the symptoms pass. Others do switch over to the baking soda free formula permanently. If you are requiring immediate relief from a baking soda sensitivity, you can try blotting something acidic onto the site, such as apple cider vinegar to help the pH balance.
If you have experienced a baking soda sensitivity with our classic formula, please reach out and we would be happy to send you a sample of our top selling baking soda free scent, The Curator!