I have not created a formula for folks with Multiple Chemical Sensitivity - YET! Go to the website http://www.humaworm.com and read the formula page. It lists all of the herbs and most of the chemicals that are in each herb. I'll research on my end and we'll see what we can come up with. By the way, just hang on to the rest of your HUMAWORM and I'll send you 3 days worth of capsules to add back to it so maybe you can pass it along to someone who can use it. (Just a suggestion, I am one of those folks who hate to see anything go to waste.)