Posted by iHerb Customer on Jan 23, 2007 | Verified Purchase
I have tried various competitors products, but find Natural Factors L-Theanine to be the most effective. I feel that it is a good "clean" product.
One of the best PS products out there. Have been taking this product for 2 years now, and there has been a great improvement in my health, especially the health of my nervous system.
This product by Natural factors has been a tremendous help in chelating heavy metals from my body and improving my overall health.
This Vit. B Complex has improved my energy levels and my overall health
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