Hist-A-Core is our best-selling simple, natural solution for people who suffer from seasonal allergies. It's ingredients work together to help with stuffy noses and other allergy symptoms. This potent formula is especially beneficial for those with elevated histamine levels and respiratory irritation, promoting healthy nasal and sinus passages.

Note: If out of stock, Natural D-Hist by Ortho Molecular may be substituted without notice. It contains the same ingredients under the original label, but at The James Clinic cost.