Pantothenic acid and biotin are water-soluble vitamins, which means that they cannot be stored by the body and must be replenished every day. They are used for the breakdown and utilization by the body of food and are part of the B vitamin complex.

Pantothenic acid is essential for the metabolism of food. It is essential in the synthesis of hormones and cholesterol. Cholesterol is needed by the body for the proper functioning of its cells' membranes, particularly in the brain.

Biotin is essential for the metabolism of proteins and carbohydrates (like the other B vitamins), and in the synthesis of hormones and cholesterol.

Pantothenic acid and biotin are found in foods that are good sources of B vitamins, including the following:
Eggs
Fish
Milk and milk products
Whole-grain cereals
Legumes
Yeast
Broccoli and other vegetables in the cabbage family
White and sweet potatoes
Lean beef

There are no known deficiencies of either pantothenic acid or biotin. Large doses of pantothenic acid do not produce symptoms other than (possibly) diarrhea. There are no known toxic symptoms associated with biotin.

Many people think that if some vitamins are good, a lot is better.
This is not always the case, and high doses of certain vitamins are actually toxic.
Read about the specific vitamins and check with your health care provider if you are unsure about how much to take -- and how much may be too much.

The best way to get the daily requirement of essential vitamins is to eat a balanced diet that contains a variety of foods and take a "Standardized" (quality) multivitamin supplement.