Est. 1973 True Herbs Herbal Support Dietary Supplement Non-gmo Project Verified Lab Verified Nutrition A Brighter Way Since 1973, we've scoured the globe for the highest quality ingredients, connecting you with the most efficacious supplements that help you live brighter and embrace the moments that matter most. Discussion: Hawthorn, also known as mayflower or may bush, is a dense, thorny shrub in the rose family. Native to northern climates, hawthorn is one of the oldest medicinal plants in Europe with a rich history. In Celtic folklore, hawthorn was believed to mend a broken heart and protect your home from evil spirits. Recent studies suggest that hawthorn may support cardiovascular function and help maintain normal, healthy blood pressure levels.