propionyl l carnitine powder Propionyl-L-carnitine = 94.0 HPLC 20064-19-1 Glycine Propionyl L-Carnitine Hydrochloride -

Toxicol Lett (2019) 312:7297

Fecal excretion of total carnitine was less than 1% of the administered dose.10 After attainment of steady state following 4 days of oral administration of levocarnitine tablets (1980 mg every 12 hours) or oral solution (2000 mg every 12 hours) to 15 healthy male volunteers, the mean urinary excretion of levocarnitine during a single dosing interval (12 hours) was about 9% of the orally administered dose (uncorrected for endogenous urinary excretion)

If you have Hashimotos, this gut connection is critical

In animal models, thymosin beta-4 has accelerated healing of skin wounds (including in diabetic and aged mice), corneal injuries, and cardiac tissue after heart attacks