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Types of Pregnenolone: Forms & Bioavailability

Evidence:Preliminary
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This content is for informational purposes only and does not constitute medical advice. Statements about dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary — consult your healthcare provider before starting any supplement. Full disclaimer

Forms Comparison

FormBioavailabilityBest For
Micronized Pregnenolone CapsulesModerateGeneral supplementation — standard oral form
Sublingual PregnenoloneHighEnhanced absorption — bypasses first-pass metabolism for faster onset
Pregnenolone CreamModerateTransdermal delivery — steady absorption, lower peak levels

Micronized Pregnenolone Capsules

Bioavailability: Moderate. Best for: General supplementation — standard oral form.

Sublingual Pregnenolone

Bioavailability: High. Best for: Enhanced absorption — bypasses first-pass metabolism for faster onset.

Pregnenolone Cream

Bioavailability: Moderate. Best for: Transdermal delivery — steady absorption, lower peak levels.

Full Pregnenolone Guide

References

  1. RCTMarx CE, Keefe RS, Buchanan RW, Hamer RM, Kilts JD, Bradford DW, Strauss JL, Naylor JC, Payne VM, Lieberman JA, Savitz AJ, Leimone LA, Dunn L, Porcu P, Morrow AL, Shampine LJ (2009). Proof-of-concept trial with the neurosteroid pregnenolone targeting cognitive and negative symptoms in schizophrenia. Neuropsychopharmacology. DOI PubMed
  2. RCTBrown ES, Park J, Marx CE, Hynan LS, Gardner C, Davila D, Nakamura A, Sunderajan P, Lo A, Holmes T (2014). A randomized, double-blind, placebo-controlled trial of pregnenolone for bipolar depression. Neuropsychopharmacology. DOI PubMed
  3. Meta-analysisLi H, Shen H, Duan X, Guo M, et al. (2026). Efficacy and safety of anti-inflammatory drug-assisted treatment of symptoms in patients with schizophrenia: a meta-analysis.. BMC psychiatry. DOI PubMed
  4. RCTStomati M, Monteleone P, Casarosa E, Quirici B, et al. (2000). Six-month oral dehydroepiandrosterone supplementation in early and late postmenopause.. Gynecological endocrinology : the official journal of the International Society of Gynecological Endocrinology. DOI PubMed