Mineralocorticoids are a class of steroid hormones characterised by their similarity to aldosterone and their influence on salt and water balance. Physiology The name mineralocorticoid derives from early observations that these hormones were involved in the retention of sodium, a mineral. The primary endogenous mineralocorticoid's aldosterone, although a number of other endogenous hormones (including progesterone and deoxycorticosterone) have mineralocorticoid function. Aldosterone acts on the… (More on Mineralocorticoid)