I'm sure I missed something somewhere and you probably explained this before but are you taking both acetyl L carnitine and N acetyl carnitine? I ask because I thought these were the same compound or do the labels specify differently.

Gleentaj is right on about the lipoic acid, the R-isomer is considerably more active than the S. The R- and S- conventions come from the compounds' ability to rotate a plane of polarized light where R = rectus or rotation to the right (right handed) and S = sinister or rotation to the left (left handed). Always gives me pause to reflect since I am left handed but hopefully not sinister.

Alkymst