Solara Methyl B-12 Raspberry-Lemon 5000 mcg. is intended to provide nutritive support for normal, healthy red blood cell production, proper nerve function and healthy homocysteine levels. Methyl cobalamin is the biologically active, highly bioavailable form of Vitamin B-12. This product provides 5, 000 mcg. of methyl cobalamin per serving in a delicious raspberry-lemon lozenge.