l-carnitine for hyperthyroidism in cats BestLife4Pets Thyroid Cat Support Weight Management and Hormone Balance, Unflavored Capsules Thyroid Support Kit for Cats

10.1097/MD.0000000000014733 114 LiF.YanR.WuJ.HanZ.QinM.LiuC.et al (2021)

With steady levels established, the formula starts working with your body's natural processes

While radiation induces ROS production that has a key role in induction of DNA double-strand breaks and activation of apoptosis signaling pathways, recent studies have shown that treatment with L-carnitine and its derivatives as potent antioxidants can inhibit DNA damage and activate DNA-repair genes through ROS reduction (65)

Treatment of chronic painful diabetic neuropathy with isosorbide dinitrate spray: a double-blind placebo-controlled cross-over study

The consensus view on Niacin is that it doesnt help

Ferrier ( 2011 ) Lippincotts Illustrated Reviews: Biochemistry Fifth Edition Philadelphia, PA, page 191 3-)Rebouche CJ