Scientific name: Biotin
Soluble in: Water
RDA(=recommended daily allowance): 150 mcg.
Function: Part of the vitamin B-complex. Maintains skin and hair condition, is involved in energy production and relieves muscular pains.
Symptoms of shortage: Fatigue, loss of hair and appetite, depression, nausea or muscular pain.
Possible causes of shortage: Unbalanced nutrition.