Many brands give me a headache. But I am using Herbs Etc. brand "Stress ReLeaf" that has some ashwagandha root in it and I do not get a headache from this. It is very calming, but the valerian does make me sleepy if I am already sleepy. HA HA.
I don't know why you want to take this herb but I have found the Herbs, etc. brand to be excellent. They have their own website and I have tried several things. Seems very high quality and this is the first Ashwagandha that hasn't given me a bad headache. Their "Deep Sleep" is excellent.
Detachment isn't the absence of love but the ability to take care of yourself in the midst of someone else's choices.