It can make an important difference which type of vitamin C is taken because many people are unable to tolerate the acid form of C beyond 8 or 10 grams a day, but they can achieve a therapeutic dose without discomfort with the alkaline (buffered) vitamin C products such as calcium ascorbate, sodium ascorbate, or magnesium-potassium ascorbates. Vitamin C also speeds up the healing of internal tissues and damaged connective tissue. Damaged internal tissues might include stomach ulcers (use the alkaline form of vitamin C only), bladder and kidney infections (acid form usually best), arthritic disorders with damage to joints and connective tissue (alkaline form usually best). Sports injuries heal up a lot faster with a therapeutic dose of vitamin C. As medicine, vitamin C should be taken at the rate of one or two grams every two hours (depending on the severity of the condition), spaced out to avoid unnecessary losses in the urine which happens if it were taken ten grams at a time. If you regularly use the acid form of vitamin C powder, which is the cheapest, be sure to use a straw and dissolve it in water or juice so that the acid does not dissolve the enamel on your teeth over time. And this is as good a point as any to mention that just like broccoli is not broccoli, a vitamin is not necessarily a vitamin. Vitamins are made by chemical and pharmaceutical companies. To make this confusion even more interesting, the business names that appear on vitamin bottles are not the real manufacturers. Bronson's Pharmaceuticals is a distributor and marketer, not a manufacturer. The same is true of every vitamin company I know of. These companies buy bulk product by the barrel or sack; then encapsulate, blend and roll pills, bottle and label, advertise and make profit. The point of all this is that some actual vitamin manufacturers produce very high quality products and others shortcut. Vitamin distributors must make ethical (or unethical) choices about their suppliers. It is beyond the scope of this book to be a manual for going into the vitamin business. However, there are big differences in how effective vitamins with the same chemical name are and the differences hinge on who actually brewed them up. For example, there are at least two quality levels of vitamin C on the market right now. The pharmaceutical grade is made by Roche or BASF. Another form, it could be called "the bargain barrel brew," is made in China. Top quality vitamin C is quite a bit more costly; as I write this, the price differential is about 40 percent between the cheap stuff and the best. This can make a big difference in bottle price and profit. Most of the discount retail vitamin companies use the Chinese product.