Stephen Buhner, author of Healing Lyme and a new book on coinfections bartonella and mycoplasma, has a collagen building protocol. I have a couple of questions. One of the things he recommends is pregnenolone. The dosages he recommends seem kind of high (50-200 mg). Is that normal to take that much pregnenolone? Another thing he recommends is silicon as orthosilicic acid such as BioSil. Swanson is selling a bamboo extract that's standardized to 70% silica. http://www.swansonvitamins.com/swanson-superior-herbs-bamboo-extract-300-mg-60-veg-caps There are also other companies that are selling silica from bamboo extract, but not much more expensive than Swanson's. The bamboo extracts have a much higher amount of silica so it seems like it would be a lot cheaper to use that, but I was wondering if it's the same thing as Biosil or Flora's vegetal silica since those are so much for expensive.