Skullcap is a wonderfully soothing nervine herb. Great for times when you are extremely agitated and anxious about something - or for when your nerves are frayed due to stress (physical and mental). It does not make you tired like some of the other herbs used for this purpose and has no known side-effects. I use this when I have had entirely too much coffee or had an extremely stressfull day. As soon as you take it you feel like a breath of fresh air has completey enveloped your body and mind. Overall a wonderful and extremely usefull tincture to have around.