L Carnitine: Benefits, Side Effects, FAQ, Sources, and Dosage Adding L carnitine to antagonist ovarian stimulation doesn't improve the outcomes of IVF ICSI cycle in patients with polycystic ovarian syndrome: a double blind randomized clinical trial Journal of Ovarian Research Springer Full article: Improved insulin sensitivity and reproductive profile in overweight obese PCOS patients undergoing integrative treatment with carnitines, L arginine, L cysteine and myo inositol Co administration of Spirulina and L carnitine preserves ovarian reserve in a rat model of premature ovarian insufficiency via SIRT1 regulation of oxidative stress, inflammation, and apoptosis Scientific Reports