l-carnitine sperm volume and Male Fertility: Is Supplementation Beneficial? Effect of L-carnitine on sperm
Description
& Rothuizen, J

[published correction appears in PLoS One

Vitamin B12 contributes to normal energy-yielding metabolism, red blood cell formation, cell division and to normal homocysteine metabolism

Discontinuation should be considered if erythema, irritation, or pigmentary changes develop