Vitamin B5 is one of the few nutrients you almost never run short on — it's found in nearly every food, so genuine deficiency is virtually unheard of. This **pantothenic acid** gives you 500mg per capsule, around 100 times the ~5mg you need daily, as calcium pantothenate, a form your body absorbs well. B5 is the building block for coenzyme A, which powers energy production and helps your body process fats, proteins, and carbs.

Because your diet already covers what you need, this high a dose mostly matters if you're genuinely short — uncommon outside of severe illness or malnutrition. The popular use for acne relied on much larger amounts (around 10g daily) with limited evidence behind it, so a single 500mg capsule isn't a skin treatment. Take it with a meal as directed.