Last updated: March 2026
Raise your testosterone WITHOUT shutting down your HPTA axis. Enclomiphene is the trans-isomer of clomiphene — a SERM that tells your body to make MORE testosterone rather than replacing it. Ideal for men who want fertility or want to avoid permanent TRT commitment.
Unlike testosterone replacement that REPLACES your natural production, enclomiphene STIMULATES it. It's a selective estrogen receptor modulator (SERM) that blocks estrogen negative feedback at the hypothalamus and pituitary, causing increased LH, FSH, and ultimately more testosterone from your own testes.
Enclomiphene selectively blocks estrogen receptors in the hypothalamus and pituitary. Estrogen normally feeds back to suppress GnRH/LH/FSH. By blocking this feedback, enclomiphene increases gonadotropin release. It blocks in SOME tissues while partially activating in others (bone, brain).
The HPTA remains ACTIVE on enclomiphene. LH pulses continue, FSH supports spermatogenesis, and testicular function is preserved. Men on enclomiphene maintain or improve testicular volume. This is the key advantage for fertility preservation.
Clomiphene is a 1:1 mixture of enclomiphene (trans) and zuclomiphene (cis). Enclomiphene is the pharmacologically active isomer. Pharmaceutical-grade enclomiphene (Androxal) provides consistent trans-isomer dosing. Studies show enclomiphene is 3-4x more potent per mg than the mixture.
With increased testosterone comes increased aromatization to estradiol. Serum E2 typically rises 20-40% on enclomiphene. This is usually manageable but may require aromatase inhibitor in some men. This is a known trade-off and should be monitored.
Data from Phase 2/3 trials of enclomiphene (Androxal) in hypogonadal men.
⚕️ Always consult a healthcare provider before starting any peptide protocol.
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Testing supplies for monitoring enclomiphene therapy.
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This page is for educational purposes only. It is not medical advice. Enclomiphene is not FDA approved (as of 2026). It should only be used under healthcare provider supervision. Always consult a qualified physician before starting any hormone therapy.