Estrogens, testosterone, cortisol, and other sex and adrenal stress hormones work together as a complex system in both men and women. Examining your hormonal balance is just as important as measuring hormone levels. Measuring only one or two hormones reveals nothing about the true balance and interaction of hormones in your body. Only Rhein Labs’ exclusive 24-hour USHP (urinary steroid hormone profile) examines your hormones as the free, biologically active entities they are. Only Rhein Labs’ hormone profile gives your healthcare practitioner the information necessary to restore and maintain healthy hormone levels.