I need this type of methyl folate and b12 because of a health issue where I need bioavailable folate and b12. B12 is best entering the system when it can dissolve in the mouth, as this one is also meant to be taken per the instructions. However, these pills to not dissolve. I had it under my tongue for two minutes and it was still just as hard. So I had to just chew it and keep it in my mouth, but I am unsure if it is properly being absorbed because of this flaw. I also think the amount of b12 is a bit crazy. No one needs that much b12, and the pills are too hard and small to be easily cut in half, so I will just take them every other day.