Mira528
Stepping in here till MH is able to answer.
Book 1 (read it, it's great) uses no herbs or supplements, but herbs make it easier.
I've tried a few of Dr. Schulze products, years ago and found them nowhere near as effective as MH's herbs.
I also think that Dr. Schulze's herbs are more expensive than Barefoot's. Barefoot's products are more affordable if you buy in bulk. The All N One kit is a good deal too. I've thrown out all the junk supplements and use only Barefoot's herbs plus some high-quality essential oils from one particular source.
for US orders:
http://oldfashionedspices.com/index.php
international:
http://www.naturesspices.com/
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