r-lipoic and acetyl l-carnitine GNC Acetyl-L-Carnitine Alpha-Lipoic Acid: Mood Support Supplement Acetyl L-Carnitine 800 mg &
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[DOI] [PMC free article] [PubMed] [Google Scholar] 38.Prah A, Purg M, Stare J, Vianello R, Mavri J

The systemic support could amplify the localized effect
doi: 10.1203/00006450-200106000-00003, PMID: [DOI] [PubMed] [Google Scholar] 22.Sylvester KG, Kastenberg ZJ, Moss RL, Enns GM, Cowan TM, Shaw GM, et al

That polarity makes it relatively poor at crossing the lipid-rich stratum corneum
