Buying enclomiphene is different from buying most compounds on this site in two ways: it ships as oral capsules rather than a powder in a vial, and it is a specific isomer — the trans-isomer of clomiphene citrate — so the single most important thing a certificate of analysis has to prove is that you are getting enclomiphene and not unresolved clomiphene. Because it is unapproved and sold for research use only, vendor quality varies, and the capsule format hides the purity question that a clear vial would at least let you inspect. This guide covers how enclomiphene is priced, what a real COA must show, and how to evaluate any source.
Research-context information only. Enclomiphene is an investigational drug not approved by the FDA. Pricing and sourcing information here describes the research-chemical market, not a recommendation for use. This article reports what has been documented, not what should be done. Possession or use of investigational drugs outside an authorized clinical trial may be illegal in your jurisdiction. Consult a licensed physician for personal medical decisions.
This is not a ranked vendor list — for that, see our best enclomiphene sources comparison. For what the compound actually did in trials, see the enclomiphene benefits article, and for the trial doses and ~10-hour half-life behind the 12.5 mg format, the enclomiphene dosing guide. This guide teaches you how to evaluate a vendor yourself.
Understanding Enclomiphene Pricing
Enclomiphene is manufactured as a small molecule and pressed into oral capsules, so it is priced per bottle rather than per milligram of powder in a vial. The variables that move the price are capsule strength (commonly 12.5 mg, sometimes 25 mg), capsule count per bottle, and the depth of testing behind it. The most common research format is 12.5 mg per capsule in a 60-capsule bottle — 750 mg total — which mirrors the mid dose carried through the trial program.
Current Market Pricing (2026)
The vetted vendor in this guide, Swiss Chems, sells the standard 12.5 mg × 60-capsule bottle (750 mg total) for roughly $79.95, with HPLC testing and a published COA. As an oral capsule product it needs no bacteriostatic water and no reconstitution.
| Format | Total content | Typical price | Price per 100 mg |
|---|---|---|---|
| 12.5 mg × 60 capsules | 750 mg | ~$80 | ~$10.66 |
Pricing reflects listed research-product pricing at time of writing and can change; check the live vendor page for the current figure. The link on this page is an affiliate link.
The pattern is clear: with enclomiphene the meaningful comparison is total milligrams per bottle against price, and — because it is an isomer product — the quality of the identity testing behind that price. A cheap bottle with no isomer confirmation is not a saving.
For live vendor pricing, see our best enclomiphene sources comparison.
How to Verify Enclomiphene Quality
Enclomiphene is defined by its stereochemistry — it is the trans-isomer of clomiphene. A certificate that only reports "clomiphene citrate" purity does not prove you are getting the enclomiphene isomer rather than the racemic mixture or the zuclomiphene fraction. That isomer question is the one thing enclomiphene testing has to answer that a simpler compound's does not.
What a COA Should Include
Identity confirmation
- Confirmation the product is the enclomiphene (trans-clomiphene) isomer specifically
- Mass spectrometry consistent with the correct molecular weight
Purity testing
- HPLC purity — look for 98%+
- A single dominant peak on the chromatogram
Contamination testing
- Residual solvent analysis
- Heavy-metals screening
How to Verify a COA Is Legitimate
- Check that the COA lot number matches the bottle you receive.
- Confirm the testing lab is named and independent, not just the vendor's own claim.
- Verify the certificate confirms the enclomiphene isomer, not generic clomiphene.
- Look for a recent test date, not a years-old certificate reused across batches.
- Cross-check that the vendor publishes COAs consistently across its catalog, not selectively.
Red Flags to Avoid
- No COA available before purchase
- A COA that says "clomiphene citrate" with no isomer identity
- HPLC purity below 98%, or no chromatogram shown
- Prices far below the vetted range with no testing to back them up
- Vendor unwilling to name the testing lab
