Good points, Galaxyshock. You should be fine taking some red ginseng - if you think you're more yin, you could handle a more yang herb like red ginseng. If you find it too stimulating, you can take jiaogulan or siberian ginseng like Galaxyshock said, or get an unprocessed, white ginseng. American ginseng is an option as well.
Women, in general, usually focus on taking blood tonics in Traditional Chinese Medicine, while men focus more on Qi tonics like ginseng. This by no means is to say women don't also take Qi tonics, but you could look at combining ginseng with a blood tonic, like Angelica or goji berries. These would help to counter-act any of the stimulating qualities of ginseng, if you find that occurring.
My advice for a good source is to shop around for a company or supplier that specializes in Chinese Herbs. Most of the ginseng available today is crap ginseng, grown in poor conditions, not allowed to age and mature, etc. With Chinese herbs, especially with some like ginseng, you get what you pay for. The older the ginseng, the more active components it has, as well as a "smoother" feel. I think the minimum in Chinese medicine is to use at least 6-8 year old ginseng, and you won't be finding that in your local Vitamin Shoppe or CVS.
This product below is a traditional formula with ginseng as the main ingredient - it also has Angelica (dong quai on the label) as a blood building component, astragalus, schizandra and a few other herbs. The company that makes it, Dragon Herbs, is very well researched, and they grow many of their own herbs in clean mountainous regions in China.
http://www.iherb.com...81&sr=null&ic=4I've used both Dragon Herbs' House Ginseng and their Ginseng Sublime product. The House Ginseng is their most basic Ginseng supplement for 23 dollars or so, and uses 6 year old ginseng grown in the mountains, not in a hothouse. The Ginseng Sublime is a bit higher quality, with some wild ginseng, but both are good, and both available on
iHerb.com for a bit cheaper than if you bought from the company's site.