Pregnenolone is an endogenous steroid hormone that serves as a precursor for many other steroid hormones in the body, including progesterone, DHEA, androgens (like testosterone), and estrogens. It is synthesized primarily from cholesterol within the adrenal glands, gonads, brain, and other tissues. Due to its role as a "mother hormone," pregnenolone is involved in a wide range of physiological processes. While naturally produced, it is also available as a dietary supplement. Interest in pregnenolone stems from its potential roles in neurosteroid activity and hormone balance, particularly as levels may decline with age (NIH ODS).
Deep dive
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Known interactions
Category rule: peptide × hormone
Note
Injectable peptides plus hormones can have overlapping or compounding effects that aren't always well characterized.
Track bloodwork with a provider; don't assume combinations are neutral.
Frequently asked
Sources referenced
["Cochrane","DrugBank","Examine.com","Mayo Clinic","MedlinePlus","NIH Office of Dietary Supplements (ODS)","PubChem"]
Stackwise compiles summaries from publicly available scientific and regulatory references. Always verify important decisions with a licensed clinician.
Related compounds
Others in the hormone category or studied for the same goals.