Sperm Enhancement Supplements: What Actually Works for Sperm Quality and Male Fertility Sperm Support Gummies (CoQ10 + L Carnitine + Lycopene) Luminary PROFERTIL No. 1 proven efficacy in male fertility Coenzyme Q10 and L carnitine may improve sperm health, review concludes Effects of different L carnitine concentrations on post thaw ram semen characteristics and fertilizing potential ScienceDirect l carnitine and l acetylcarnitine supplementation for idiopathic male infertility in: Reproduction and Fertility Volume 1 Issue 1 (2020)