Frontiers The efficacy of orally administered L carnitine in alleviating ovarian dysfunctions has laid the foundation for targeted in vivo use: a study employing self control and propensity score matching PCOS is complex but the right supplements can truly make a difference. When it comes to managing PCOS naturally, three supplements stand out for their science backed benefits: 1) Berberine often compared Acetyl L Carnitine (ALCAR) Supplement for Horses Mad Barn L Carnitine 1000mg Energy, Metabolism & Fat Burning L Carnitine for PCOS: Everything You Need to Know PCOS Nutrition Center