A group of B vitamins supporting normal energy metabolism.
Vitamin B-Complex refers to a group of B vitamins (commonly B1, B2, B3, B6, B12, and others) that play roles in normal energy metabolism.
This is a common addition to energy-positioned supplements generally, and is well tolerated at typical supplement doses.
JellyRock's marketing doesn't specify which individual B vitamins are included or at what amounts, so we can't confirm the specific composition of this "complex."