Pregnenolone is sometimes called the mother hormone because it is a precursor from which the body synthesises other steroid hormones, including DHEA, progesterone, testosterone and cortisol. It has been explored for cognitive and mood effects, though human research remains limited.
Human evidence is sparse compared to its popularity in supplement discussions. Small studies have explored pregnenolone for cognitive function, mood and specific psychiatric contexts under research settings, with mixed and preliminary results. It is not established as effective for general longevity or cognitive enhancement in healthy adults.
Because it sits upstream of multiple other hormones, supplementing pregnenolone can have unpredictable downstream hormonal effects. Long-term safety data in healthy adults is limited. Quality and dosing vary widely in the unregulated supplement market.
Before use, particularly if you have any hormone-sensitive condition, are pregnant or breastfeeding, or are taking other hormone-affecting medication. Because pregnenolone sits upstream of multiple hormonal pathways, self-directed supplementation without clinical indication and appropriate testing is generally not recommended.
Varies by dose and source.
Preliminary clinical research on pregnenolone and cognitive/mood outcomes. Steroid hormone biosynthesis literature. Educational information only. Speak to a qualified healthcare professional before starting.