l-carnitine thorne Acetyl-L-Carnitine 500 mg – Cognitive & Energy Support Acetyl-L-Carnitine 500 mg (formerly Carnityl)

A 10-unit draw (4mg blend) delivers 2.5mg of GHK-Cu and 500mcg each of BPC-157, TB-500, and KPV placing all four components within their commonly cited research ranges

A mix of cardio and weight training could help increase your levels

doi: 10.3945/ajcn.114.086918 Summary Keywords nutritional interventions, osteoarthritis, metabolism, inflammation, oxidative stress, gut-joint axis Citation Wang Y, Cao Z, Gao Y, Shao P, Gao S, Dong M, Tian Z, Feng Y, Xu J and Xiang C (2025) Nutritional interventions for osteoarthritis: targeting the metabolism-inflammation-oxidative stress axisclinical evidence and translational practice

As you can see, there's no single 'correct' answer