THANKS MH for your insightful and thorough answer! It's especially helpful to know I can leave the herbs on the stove for use all week. Now I get that it's more about ingesting the herbs versus just using it topically.
For the person who asked about the herbs it's the topknot formula only as dried herbs versus the tincture spray MH makes. You can find it for purchase when you get into the member only section of MH's website. This store has an abundance of other herbal products available and is worth checking out. He will give you access if you email him directly.
The topknot is an herbal combination that restores gray hair to it's original color. Supposedly it works for some depending on how toxic they are combined with metals in the body.