Quick take
Sports Technology Labs names MZ Biolabs as its testing lab and posts a recent certificate for most of its SARMs and peptides, which puts its paperwork ahead of many SARMs sellers. Reports are not visibly tied to batch numbers, a few posted results fall under the site's own purity minimum, and refund terms are thin beyond a 60-day exchange.
The seven checks
| Independent lab testing | Yes | Product pages name MZ Biolabs in Tucson, Arizona as the testing lab and embed its certificates. |
|---|---|---|
| Batch-specific COAs | Partly | One most-recent certificate is shown per product, with no batch or lot number in the page text and some reports dated 2023 or early 2025. |
| Identity confirmed by mass spec | Partly | Pages say mass spectrometry confirms identity, but no observed-versus-expected mass appears in the page text. |
| Research-use labeling | No | Research-use notices are thorough and no usage guidance is given, but ready-made liquid SARMs in dropper bottles fall short of strict reagent labeling. |
| Age and use confirmation | Partly | The terms require buyers to be 18 or older and affiliated with a research institution, but no gate or checkbox appeared before purchase. |
| Clear shipping and refund terms | Partly | Shipping terms are spelled out in the FAQ, but refunds are covered only by a 60-day exchange rule and an advertised guarantee, with no standalone policy page. |
| Business transparency | Yes | A Shelton, Connecticut address, phone number, email, contact form and terms of service are published. |
Sports Technology Labs is a US research chemical supplier that lists a Shelton, Connecticut mailing address and says it has traded since 2019. It sells SARMs as ready-made liquids and dry powders, along with a smaller range of freeze-dried peptides in sealed vials, and it presents every item as laboratory material only.
We looked at the homepage, the COA library, the FAQ, the About page, the terms of service and several product pages. The paperwork is better than average for a SARMs seller: a testing lab is named and certificates are posted for most of the range. The gaps sit in batch matching, mass spec detail and how refund terms are written.
Who Sports Technology Labs is and what the catalog covers
The company describes itself as a chemical supplier rather than a compounding pharmacy or outsourcing facility. No owners or staff are named, and the terms do not give a legal entity type such as LLC or Inc. The listed address is a suite number on Bridgeport Avenue in Shelton, which reads like a mailbox rather than a lab or warehouse.
The catalog has three parts:
- Liquid SARMs in 30 mL glass bottles, suspended in USP-grade PEG-400, such as Ostarine (MK-2866) at 25 mg/mL.
- SARM powders in 2 g containers, including LGD-4033, RAD-140 and SR-9009.
- Peptides as freeze-dried powder in sealed vials, such as BPC-157, TB-500, Semax and Sermorelin, with diluent sold separately.
There are also 14 SARM bundles named only by the compounds they contain, plus peptide bundles and wholesale pricing on request. Single items seen ranged from about $52 to $120.
Testing and certificates: MZ Biolabs reports, batch matching and mass spec
Testing is the strongest area. Product pages name MZ Biolabs in Tucson, Arizona as the accredited US lab behind the certificates, and the About page adds Colmaric Analyticals, LLC as an ISO-accredited firm providing analytical oversight. The company says it does not rely on in-house results or manufacturer data.
Each product page embeds a certificate for the most recent batch and states a purity figure, for example 99.43% by HPLC for BPC-157 and 98.04% for liquid Ostarine. The COA library posts one certificate image for each of roughly 31 products, covering 12 SARMs and about 20 peptides.
Points to weigh before relying on these reports:
- Batch matching. The About page says each product carries a batch number tied to its COA, but no batch or lot numbers appear in the page text, and only one report is shown per product.
- Report age. Some certificates are older, such as RAD-150 dated July 2023 and KPV dated January 2025, and a few dates are written incompletely.
- Results below stated minimums. The site sets 98% as its SARM minimum, yet posted results for LGD-4033 (97.29%) and RAD-140 (97.4%) fall just under it. DSIP is listed at 90.2%.
- Mass spec detail. Pages say mass spectrometry confirms identity, but no observed-versus-expected mass appears in the page text.
The COA library encourages buyers to confirm results with the testing lab directly, which is good practice, though that page itself does not name the lab.
Research-use labeling, formats and purchase checks
Research-use notices are thorough. Product pages state that items are for laboratory investigation only and not for human or animal consumption, and the FAQ says staff cannot give guidance on any use outside laboratory research. No usage instructions or effect claims appeared on the pages reviewed.
The weak point is format. Ready-made liquid SARMs in dropper bottles look more like retail goods than laboratory reagents, which keeps labeling at partial. Labs that prefer to prepare their own solutions can choose the powder versions instead.
No age gate or research confirmation appeared before checkout. The terms require buyers to be at least 18 and to confirm affiliation with a research institution, but that requirement sits only in the terms of service.
Ordering, shipping and handling in transit
Checkout accepts credit cards, e-checks, Zelle and CashApp. Orders usually leave within one business day, six days a week. The About page quotes 2 to 5 business days for domestic delivery, while the FAQ says 3 to 5.
Domestic shipping is a flat $8, free over $199, and international orders ship free over $299. The store ships only to the US, Canada and the UK, and not to APO, FPO or DPO addresses. Parcels over $500 need a signature. International buyers handle their own VAT, import taxes and import paperwork.
Peptide pages give a 2 to 8 °C storage range, but the site does not say whether parcels include cold packs or insulation. Liquid SARMs carry a stated 24-month guarantee.
Exchanges, refunds and support
The homepage advertises a 60-day money-back guarantee. The FAQ describes something narrower: unused items can be exchanged within 60 days at no extra cost, with a note placed in the return box, and processing takes 1 to 2 days. No written refund procedure, lost-parcel rule or damaged-item rule was found, and the terms of service do not cover refunds.
Order changes are accepted only before shipping, by email. Support is reachable by email, a Connecticut phone number and a contact form. Before ordering, ask support how refunds work for unopened items and what happens if a parcel is lost or arrives warm.
Verdict: which labs it suits and what to check first
Sports Technology Labs suits US, Canadian and UK labs that want SARMs or common peptides from a seller that names its testing lab and posts a certificate for most products. It is a weaker fit for labs that need lot-matched reports with mass spec data, or that want written refund terms before buying.
Before ordering:
- Ask for the certificate that matches the batch you will receive, and check its batch number against the label.
- Confirm the report with MZ Biolabs directly.
- Compare the posted purity with the site's own 98% minimum.
- Get refund and lost-parcel terms in writing.
Catalog examples
A sample of listed research products and sizes when we checked. Prices change often; the supplier's site is the source of truth.
| Product | Size | Listed price |
|---|---|---|
| Liquid Ostarine (MK-2866) | 25 mg/mL, 30 mL bottle | about $58 |
| Liquid Testolone (RAD-140) | 15 mg/mL, 30 mL bottle | about $68 |
| LGD-4033 powder | 2 g | about $103 |
| BPC-157 | 5 mg vial | about $55 |
| TB-500 | 5 mg vial | about $70 |
| Semax | 10 mg vial | about $80 |
What holds up
- Names MZ Biolabs (Tucson, Arizona) as its testing lab on product pages, and cites Colmaric Analyticals for analytical oversight
- Certificate images posted for about 31 products in a COA library and embedded on product pages
- Strict research-use notices, and the FAQ declines to give any guidance outside laboratory research
- Published Connecticut address, phone, email and contact form
- Clear shipping basics: dispatch within one business day, stated free-shipping thresholds and a defined list of destinations
What to watch
- No batch or lot numbers in the page text, and only one certificate per product, some dated 2023 or early 2025
- Several posted purity results fall just below the site's own 98% SARM minimum
- Mass spec identity is claimed but no observed mass is shown
- Liquid SARMs come in dropper bottles, age confirmation sits only in the terms, and there is no written refund procedure
Questions
Is Sports Technology Labs legit?
It lists a Connecticut address, phone and email, names MZ Biolabs as its testing lab and posts a certificate for most products, which are reasonable signs. Certificates are not visibly matched to batches, and no outside reviewer can vouch for a single order, so match the batch number on your label to its report and confirm that report with the lab.
Which lab tests Sports Technology Labs products?
Product pages name MZ Biolabs in Tucson, Arizona, which the supplier says runs HPLC purity and mass spec identity checks. The About page also names Colmaric Analyticals, LLC for analytical oversight.
Are Sports Technology Labs COAs batch-specific?
Each product shows one certificate described as the most recent batch. No batch or lot number appears in the page text, so ask support for the report that matches the lot you will receive.
Where does Sports Technology Labs ship?
It ships to the US, Canada and the UK only, and not to military addresses. Orders usually leave within one business day, with free domestic shipping over $199 and free international shipping over $299.
What is the Sports Technology Labs return policy?
Unused items can be exchanged within 60 days, and the homepage advertises a 60-day money-back guarantee. No written refund procedure is posted, so confirm the terms with support before ordering.
For laboratory research only. This file reviews a supplier's testing, paperwork and policies. It is not a recommendation to use any product in people or animals, and it contains no dosing or medical advice.
Compare with
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|---|---|---|---|---|---|---|
| AIX Peptidesaixpeptides.com | 3.5/5 | Partly | Partly | No | Canada | Read file |
| American Peptide Researchamericanpeptideresearch.net | 3.5/5 | Partly | Partly | Not shown | Not stated | Read file |
| BioLabs Peptidesbiolabspeptides.com | 3.5/5 | Partly | Partly | No | Not stated | Read file |