Benefits of L Carnitine for PCOS: Improve Insulin Resistance & Weight Loss L Carnitine Shots: Do They Help with Weight Loss? Inhibiting TRIM21 Neddylation Rejuvenates Oocyte Quality in PCOS by Regulating Ubiquitination of CPT1A Research L Carnitine has become one of the most commonly asked about supplements over the past 18 months and I can see why when looking at all the research that has come out about L Carnitine for Weight Loss: How It Works, Dosage & Best Supplement Zeelab Pharmacy L Carnitine has become one of the most commonly asked about supplements over the past 18 months and I can see why when looking at all the research that has come out about it over the last 2ish years.,