Replies to @johnbishop how can you tell the R from the S kind? My bottle has neither on…

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Neuropathy | Last Active: Dec 8, 2025 | Replies (93)

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@carol1024

@johnbishop how can you tell the R from the S kind? My bottle has neither on it.

Replies to "@johnbishop how can you tell the R from the S kind? My bottle has neither on..."

John, Volunteer Mentor | @johnbishop | Nov 18, 2025

@carol1024, The ingredients label on the bottle normally specify the amount of R-ALA and S-ALA.

"Supplements labeled as ALA usually contain a 50/50 mixture of R-ALA and S-ALA; while R-Lipoic Acid supplements specifically contain R-ALA only."
-- R-Lipoic Acid vs Alpha-Lipoic Acid: Which Is Better?
https://www.performancelab.com/blogs/energy/r-lipoic-acid-vs-alpha-lipoic-acid
You might want to check out the following discussion:
-- Which type of ALA does my supplement include?: https://connect.mayoclinic.org/discussion/which-type-of-ala-does-my-supplement-include/