Protodioscin is a steroidal saponin compound found in various plants, particularly in Chinese herbs and the Dioscorea family. It is used in dietary supplements for its potential to support hormonal balance, stimulate sex hormone production such as testosterone, and enhance physical performance. Commonly included in products aimed at boosting testosterone levels, improving male sexual health, and promoting vitality and stamina in traditional medicine.

Investigated for its anti-inflammatory and immune-modulating effects, it helps reduce chronic inflammation. Also explored in research related to metabolic health, exercise recovery due to its influence on energy metabolism, and potential prevention of neurodegenerative diseases like Alzheimer's by inhibiting abnormal protein accumulation in the brain.

Some studies suggest anti-cancer properties, particularly against liver, breast, and prostate cancers, by inhibiting cancer cell division and promoting apoptosis.

In the cosmetics industry, protodioscin is used as an ingredient in creams or serums to stimulate blood circulation under the skin and strengthen skin health.

However, use should be controlled, as high doses or long-term use may cause side effects.