Many posts are on this very forum about lipoic acid. 400+

You can type in "lipoic acid" into our search function and
read them. Some are from older members who have moved on, but it has been a growing topic here for YEARS.

There have been improvements, in solubility and lowering of cost for it as a result, just recently.

This is one long thread as an example:
http://neurotalk.psychcentral.com/sh...ht=lipoic+acid

Your body makes lipoic acid, and with age or illness this may fail, and supplements may help. In Japan lipoic acid is very very popular.

I cannot give you a search result string for this search because our software will not accept a link by another poster in a post here for their own search. Each person has to do there own.

(Also be aware that ALA abbreviation is also used for an omega-3 fatty acid called Alpha Linolenic Acid. If you see ALA in a topic make sure of the context so you don't hit on the wrong ALA.)

The best resource on the web IMO is Linus Pauling Institute from Univ. of Oregon. It is fairly up to date and comprehensive.
On PubMed if you search, you may have to use the alternate name for lipoic acid which is thiotic acid. The chemical papers and non-American sources use the term thiotic often.

Many of us here use the new stabilized form NaRALA, from Doctor's Best. It is very affordable and one only needs 100mg a day or so.
The old racemic mixture is 600mg -1800mg a day and is only 50% active and has poor absorption. Expect to pay alot of money for this
from most suppliers. There are papers going back 30 yrs or more, mostly from Japan and Europe on this supplement.