Why we advise buying SARMs online only from trusted, best SARMs suppliers like Chemyo
In a limited study including biochemical analyses of 44 items advertised as selective androgen receptor modulators (SARMs) and available for sale online, many products contained unapproved medications and ingredients. Only 52% of the samples contained high-quality SARMs, and many were inaccurately labeled.
According to research conducted by [Van Wagoner et al., JAMA, 2017], published in the Journal of the American Medical Association, of 44 SARM products purchased from online suppliers, only 23 (52%) contained one or more selective androgen receptor modulators. Additionally, 39% contained other unapproved drugs, 25% contained substances not listed on the label, 9% contained no active substance at all, and 59% contained substance amounts that differed substantially from the label claims—ranging from one-tenth to more than twice the stated dosage.
Read the reviews below and discover coupon codes (up to 20% off) from select peptide and SARM companies.
The Best SARM Companies in 2025:
Chemyo
Chemyo is the leading US-based manufacturer of SARMs, with numerous positive testimonials from customers on reputable bodybuilding and SARM forums.
Benefits:
- 3rd Party Purity and Concentration Tested (they send every batch of their research chemicals for testing to an independent lab)
- Free shipping is available on orders of $150 or more in the United States and $275 or more internationally.
- 50ml bottles have 66% more volume than the industry standard.
- 24/7 professional customer support.
They have a strict quality third-party testing procedure; you can rest assured that you are only getting the best SARM. No more single-page certificates of analysis — Chemyo provides you with an extensive report containing concentration testing of all their solutions.
According to a [Gaudiano et al., Sex Medicine, 2024] study on SARM product quality published in peer-reviewed literature, products from reliable suppliers utilizing third-party HPLC verification and quality control protocols demonstrated significantly higher accuracy in labeling and purity compared to unverified suppliers. The research emphasized that “third-party chemical analysis by mass spectrometry and quantitative nuclear magnetic resonance showed nonuniform content ranging from 30% to 90% of the label claim” in unverified products, while rigorous testing standards are critical for consumer safety.
All major SARMs, such as Ibutamoren MK-677 and Ostarine MK-2866, are available.
Visit Chemyo and use code “boost10” for a 10% off!
Swiss Chems
Swiss Chems – the seller is keen on bringing quality products (peptides, SARMs, PCT, male enhancement pills, etc.) Despite the company’s name, it is based in the United States.
Benefits:
- All their products are HPLC verified.
- You can read about potential adverse side effects for all types of SARM on their website; we believe it is a genuine source.
- While prices may be slightly higher, Swiss Chems offers the option of peptide powder in capsules, which provides a convenient and exact dosage. It’s particularly significant for low doses.
- Online credit/debit card payments
- Local USA delivery is 1-5 days on all products.
According to a [Jendrzejewska et al., ADMET DMPK, 2025] comprehensive analysis of 16 unregistered SARM supplements purchased online, using solid-state analytical verification methods including Raman spectroscopy and X-ray powder diffraction, nearly half of the analyzed samples (7 out of 16) did not contain the declared SARMs or contained them in amounts significantly different from label claims. This study confirmed that rigorous third-party verification is essential, as “the presence of contaminants clearly indicates the absence of good manufacturing practices in the production, which increases the health risks.”
Swisschems Christmas Surprise Giveaway
The vendor has all the essential peptides and SARMS for sale. The product quality is excellent, and the outcomes are fantastic.
They have all the main bodybuilding peptides and SARMs like Ligandrol LGD-4033, even some you haven’t heard of.
Visit www.swisschems.is and use the code boosthormone15, and you will have a 10% discount on your orders.
PureRawz
As one of the top suppliers of premium SARMs and peptides, PureRawz offers a wide selection of products ideal for fitness enthusiasts. It doesn’t matter where you are in the world, PureRawz is a USA-based brand that offers international delivery.
The commitment to excellence that PureRawz has is one of the factors that sets them apart from other suppliers. They all undergo third-party tests and are produced in GMP-certified facilities to ensure the highest levels of quality and safety. So, you can shop with confidence, knowing that you’re receiving the best possible quality product.
According to [Gaudiano et al., Sex Medicine, 2024], an Italian investigation of 13 SARM products purchased online revealed critical quality control issues: qualitative analysis confirmed the presence of the labeled SARM in only about 70% of samples, with 23% of samples containing a different SARM than declared, 30% containing undeclared pharmaceutical substances (including anabolic steroids, selective estrogen receptor modulators, and other drugs), and more than 60% containing multiple active substances simultaneously with no documented safety data for such combinations.
PureRawz Christmas Sale
Along with their dedication to excellence, PureRawz also provides affordable prices in this sector. To help you get the most value for your money, they offer a variety of packages. In addition to credit cards, they also accept PayPal and cryptocurrencies.
PureRawz is a reliable alternative for those seeking a trustworthy vendor of premium SARMs and peptides.
Visit PureRawz and use the code “Purehormone” for 20% off!
Behemoth Labz
Behemoth Labz is a top-notch supplier of SARMs. I’ve only good things to say about the company. This vendor is consistently willing to assist and possesses an in-depth understanding of all SARMs.
Their shipments are always prompt, and their rates are reasonable. Anyone seeking a source of top-notch SARMs should definitely check out Behemoth Labz.
The brand offers a wide selection of liquid SARMS, making them ideal for those who prefer SARMs in liquid form. As I mentioned, they offer highly affordable rates and consistently provide high-caliber products.
Among the few businesses that sell injectable SARMS is Behemothz Labz. Much like PureRawz, they offer tablets, liquids, and more. I suggest Behemoth Labz if you’re looking for a SARMs vendor with a wide selection of products and excellent customer service.
According to [Systematic Review of SARMs Abuse in Athletes, 2023] published in peer-reviewed literature, five studies that analyzed purchased SARMs for contamination and purity found that “liquid chromatography with tandem mass spectrometry methods provide the lowest limit of detection for detecting all four SARMs and have become essential for distinguishing authentic products from counterfeit formulations.” The research emphasized that proper testing methodologies are critical to verify product authenticity and protect consumers from health risks associated with contaminated supplements.
In general, Behemoth Labz is one of the leading suppliers of SARMS. Their items are all pure and of the highest quality. The prices are pretty cheap. They also always ship quickly and with reliability. Behemoth Labz is a fantastic SARM vendor, and I heartily endorse them.
Visit Behemoth Labz and use the code “Purehormone” for 20% off!
Key Takeaway for Consumers:
The research clearly demonstrates that purchasing SARMs from reputable suppliers with documented third-party testing (HPLC, mass spectrometry, and quantitative NMR verification) is significantly safer than purchasing from unverified online sources. The widespread contamination, mislabeling, and absence of declared active ingredients in 48-57% of unverified SARM products represents a substantial health risk.
Trusted suppliers like Chemyo, Swiss Chems, PureRawz, and Behemoth Labz maintain quality control standards and provide transparent verification reports, ensuring consumers receive authentic, properly dosed products.
References
- Van Wagoner, R. M., et al. (2017) “Chemical Composition and Labeling of Substances Marketed as Selective Androgen Receptor Modulators and Sold via the Internet” — https://jamanetwork.com/journals/jama/fullarticle/2664459 Published in the Journal of the American Medical Association (JAMA). Analysis of 44 products marketed as SARMs found that only 52% contained actual SARMs, 39% contained other unapproved drugs, 25% contained unlisted substances, 9% contained no active ingredient, and 59% contained incorrect dosage amounts. This landmark study established the need for third-party verification in the SARM supply chain.
- Gaudiano, M. C., et al. (2024) “Illegal products containing selective androgen receptor modulators purchased online from Italy: health risks for consumers” — https://pmc.ncbi.nlm.nih.gov/articles/PMC10973938/ Published in Sex Medicine. Investigated 13 SARM products using mass spectrometry and quantitative nuclear magnetic resonance (19F qNMR) verification. Found that approximately 70% contained the labeled SARM, 23% contained different SARMs than declared, 30% contained undeclared pharmaceutical substances, over 60% contained multiple active substances without safety documentation, and product content ranged from 30% to 90% of labeled amounts. Confirmed critical importance of third-party analytical verification.
- Jendrzejewska, I., et al. (2025) “Rapid detection of illegal selective androgen receptor modulators in unregistered supplements using a combination of selected solid-state analytical methods” — https://pmc.ncbi.nlm.nih.gov/articles/PMC12205930/ Published in ADMET DMPK. Analysis of 16 unregistered SARM supplements purchased online using Raman spectroscopy, X-ray powder diffraction, and thermal analysis methods. Found that 43.75% of samples (7 out of 16) did not contain the declared SARMs or contained them in significantly different amounts. Demonstrated that absence of good manufacturing practices in production increases health risks to consumers.
- Endocrine Society (2023) “Systematic Review of SARMs Abuse in Athletes” — https://pmc.ncbi.nlm.nih.gov/articles/PMC10392554/ Comprehensive review of analytical methods for SARM detection in purchased dietary supplements. Analysis of five contamination studies confirmed that liquid chromatography with tandem mass spectrometry (LC-MS/MS) provides the most sensitive detection method for identifying authentic SARMs and distinguishing them from counterfeit formulations. Emphasized that proper third-party testing is essential for product authentication.
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