These vitamins elevated my b12 to be too high, so I’ve been advised by my doctor to stop taking them. I would be wary for anyone else to take these incase the same happens to you. 240% of b12 daily intake is too high!! Idk why it’s necessary. Apart from that they made my nails the longest and strongest they’ve been, made little difference to my hair though. They do taste good but are on the expensive side.