l-carnitine for breastfeeding moms NOW 1000 mg Liquid Same-Day Delivery or Pickup Levocarnitine - Drugs and Lactation

Resolution of liver enlargement following cessation of treatment is influenced largely by the rate of elimination of the xenobiotic or its metabolite from the body

They get both through the blood supply

When it comes to any peptides that affect growth hormone production, I would professionally dissuade people from doing it, Milazzo says

Sawicka AK, Renzi G, Olek RA. The bright and the dark sides of L-carnitine supplementation: a systematic review. J Int Soc Sports Nutr. 2020 Sep 21;17(1):49. doi: 10.1186/s12970-020-00377-2. PMID: 32958033; PMCID: PMC7507632

Cold injections are not dangerous but can cause minor discomfort

May 2021;35(5):2386-2395