The volunteer-run Trans Harm Reduction organization helps trans people in Ireland and Scotland reduce risks when self-medicating.
Testing
Trans Harm Reduction tests hormone therapy sources commonly used by people who self-medicate, including concentration in a vial.
About Testing
Trans Harm Reduction organises laboratory testing of HRT sources commonly used by trans people who self-medicate. Each vial is tested for concentration (strength) and for contamination (impurities), and results are published with advertised concentration, measured concentration, batch information and contamination findings.
Testing is complicated and costs €300 per sample for one vial, so testing on request is not currently offered. The site accepts donations in GBP and EUR to support continued testing of common sources.
Key features
- Laboratory testing of HRT vials for concentration strength
- Laboratory testing of HRT vials for contamination impurities
- Published test results with advertised and measured concentration
- Published contamination findings for each tested sample
- Batch-specific results for tested HRT sources
- Donation options in GBP and EUR to support testing
Best for: Trans people who self-medicate with HRT and want laboratory information about common sources.
Good for
- Publishes both concentration measurements and contamination results for each sample
- Includes batch details and links to full lab reports for tested vials
- Lists results starting from the most recent test to the earliest
Watch out for
- Does not organise testing on request due to cost
- Comprehensive testing costs at least €300 per single vial
Testing at a glance
- Category
- Health & Fitness › Health & Fitness Resources
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Testing alternatives
Tools and sites you could use instead, ranked by how closely they match.
Trans Healthcare Resources lists information and community resources related to self-managed injectable hormone treatment.
TripSit shares harm reduction information and educational resources for people seeking guidance about drug use.
The DIY HRT Directory provides guidance and resources about DIY hormone replacement therapy for transmasculine and transfeminine people.
PGHRT presents a practical guide to feminizing hormone replacement therapy, as identified by the page title and heading.
Valerie provides information about sourcing hormones for the transgender DIY community and links to relevant studies and resources.
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Testing FAQ
What does HRT source testing involve?
Testing a vial of HRT for concentration (strength) and for contamination (impurities).
Why is lab testing of these HRT sources done?
Homebrew HRT is not subject to the same standards as prescription products, so testing indicates whether the advertised concentration is correct and whether a source might be contaminated or unsafe for other reasons.
Can I request testing of a specific vial?
No. Due to the cost, testing on request cannot currently be organised or covered.
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