3 Best SARMs Companies in 2023 (>98% Purity)

Dr George TouliatosDisclaimer: SARMs are only to be used for research purposes, as they are non-FDA approved compounds and thus may cause adverse effects. If you have any questions or concerns, Dr. Touliatos is currently available for consultations.

Research conducted by JAMA network revealed that 48% of SARMs are either fake, underdosed or replaced with cheap and toxic compounds (1).

Although it is evident that SARMs work, buying them can be risky due to their unregulated nature. Consequently, many rogue manufacturers have emerged looking to short-change customers with placebos.

There has also been a shakedown in the SARMs manufacturing sector, with FDA scrutiny intensifying (2), and COVID pressure resulting in several companies closing their doors.

However, there are a handful of companies that have weathered the storm and remain trading.

This is largely due to these manufacturers conducting themselves honestly and ethically; whilst producing high-quality products.

Below are the 3 best SARMs companies on the market and their scores; based on effectiveness, product range, pricing, payment, shipping and communication.

  1. Sports Technology Labs (19/20)
  2. Chemyo (17/20)
  3. Amino Asylum (16/20)

Discontinued SARMs Companies: Science.bio, Rats Army, Proven Peptides.

1. Sports Technology Labs

sports technology labs

  • Effectiveness: 5/5
  • Product Range: 5/5
  • Pricing: 4/5
  • Payment, Shipping, Communication: 5/5

Effectiveness (5/5)

Sports Technology Labs consistently receive excellent reviews online, thanks to their ability to produce high-quality SARMs (minimum 98% purity).

They are also one of the few companies on the market that provide COAs (certificates of analysis) for each product, which is conducted by a third party — known as Colmaric Analyticals (3).

Note: We have a source who contacted Colmaric Analyticals to confirm that the COA’s for Sports Technology Labs were in fact accurate.

As a consequence of higher purity and no fake/diluted batches, customers can expect enhanced results from their cycles. See a Sports Technology Labs’ customer transformation below.

sports technology labs results

This user utilized a 5-week cycle consisting of 5mg of LGD-4033, 15mg of RAD 140, and 25mg of MK677. He gained 16lbs of lean mass, whilst reporting exceptional increases in strength. These results are above average, especially as the user had used steroids in the past, which typically reduces a person’s potential for growth on SARMs (vs a natural weight trainer).

Product Range (5/5)

Sports Technology Labs’ SARMs come in liquid or powder form.


  • Rad 140 – $59.99 (15mg/ml – 30ml) 450mg
  • Ibutamoren – $59.99 (25mg/ml – 30ml) 750mg
  • Ostarine – $49.99 (25mg/ml – 30ml) 750mg
  • LGD-4033 – $54.99 (10mg/ml – 30ml)
  • Cardarine – $54.99 (20mg/ml – 30ml) 600mg
  • Stenabolic – $59.99 (50mg/ml – 30ml)
  • YK-11 – $54.99 (10mg/ml – 30ml) 300mg
  • Andarine – $54.99 (50mg/ml – 30ml) 1,500mg
  • S23 – $54.99 (20mg/ml – 30ml) 600mg
  • RU – 58841 – $54.99 (50mg/ml – 30ml) 1,500mg

Pricing (4/5)

Sports Technology Labs offers competitive pricing, despite heavily investing in the quality of their products.

They are also among the most generous of SARMs companies, known to give the largest discounts during special times of the year. For example, on Black Friday they had a 40% discount.

Payment / Shipping / Communication (5/5)

Sports Technology Labs accepts Visa, Mastercard, Discover, and American Express with no additional fees at checkout. They also accept checks, Bitcoin and Cash App. When customers pay with Bitcoin they can receive 5% off their order.

The main benefit with Sports Technology Labs, in terms of payment, is a 0% credit card fee. This is generous on their part and something that separates them from the competition.

Sports Technology Labs are open to accepting other payment methods if customers require such (which can be discussed via email).

They provide free shipping to US customers on orders over $99 and free international shipping on orders over $299.

Sports Technology Labs provide rapid communication via email. I requested some information from the owner and he replied in a matter of minutes — even when on vacation. This is a company that treats you like a friend rather than just another customer, and it is done with authenticity and warmth.


  • High purity (>98%)
  • COA (certificates of analysis)
  • Excellent product selection and payment options
  • 0% credit card fee


  • None

Maximum Discount

sports technology labs

Discount code: Save 15% on Sports Technology Labs' SARMs by using discount code inside15.

2. Chemyo

chemyo logo

  • Effectiveness: 5/5
  • Product Range: 4/5
  • Pricing: 4.5/5
  • Payment, Shipping, Communication: 3.5/5

Effectiveness (5/5)

Chemyo has exceptionally effective products, with a minimum chromotographic purity of >99%. Such (almost perfect) levels of purity are only possible via the process of recrystallization (4).

Chemyo also uses a third-party company (S&N labs) to authenticate the purity of all their products.

This correlates with many of their customer’s results, which are consistently very positive.

chemyo results

The above user took Chemyo’s ostarine (25mg/day), RAD 140 (30mg/day) and cardarine (20mg/day), for 6 weeks. He gained notable amounts of muscle hypertrophy, with his weight inceasing by 25lbs. His muscle definition and strength also increased; with him adding 30lbs to his bench press in the first week of his cycle.

Product Range (4/5)

mk677 chemyo
Chemyo offers its products in liquid and powder form. Chemyo separates themselves from the competition by increasing the volume (ml) of each bottle. Where the industry standard offers 30ml bottles, Chemyo provides 50ml. Thus, their prices are signficantly better value than first perceived.

The only downside to their product range is the exclusion of LGD-4033, which they were forced to discontinue after receiving a cease and desist letter from the patent owner. They also no longer sell Stenabolic.


  • RAD 140 – $69.99 (10mg/ml – 50ml) 500mg
  • Ostarine – $59.99 (25mg/ml – 50ml) 1,250mg
  • Ibutamoren – $69.99 (25mg/ml – 50ml) 1,250mg
  • Cardarine – $54.99 (10mg/ml – 50ml) 500mg
  • Andarine – $74.99 (50ml/ml – 50ml) 2,500mg
  • YK-11 – $74.99 (10mg/ml – 50ml) 500mg
  • GW0742 – $59.99 (10ml/ml – 50ml)
  • S-23 – $59.99 (20mg/ml – 50ml) 1,000mg
  • RU – 58841 – $69.99 (50mg/ml – 50ml) 2,500mg

Pricing (4.5/5)

The pricing of Chemyo’s SARMs initially appears to be standard; however, after you equate for the extra volume in their bottles and calculate the total mg quantity, their products are very good value for money.

Payment, Shipping, Communication (3.5/5)

Chemyo offer a variety of payment options, being: credit card, bitcoin and e-checks.

The main drawback with Chemyo is that they add a lofty 7.95% fee when paying by credit card. This is a high percentage compared to other SARMs companies; thus, it is difficult to understand why such a costly fee is necessary.

However, this charge does not apply to customers paying with Bitcoin. Chemyo also offer 10% discount when paying via crypto.

Worldwide shipping is available, with US orders taking 2-5 days to arrive.

In terms of communication, Chemyo took almost a week to reply to our first email (we also had to send a followup one before receiving a response).

They did not reply to our last email after over a week of waiting now. Therefore, their communication appears to be lacking; which may be problematic for customers, should any issues arise with their orders.


  • Very high purity (>99%)
  • COA (certificates of analysis)
  • Good value (more ml per bottle)


  • No LGD-4033 or Stenabolic
  • 7.95% credit card fee
  • Slow (or no) response via email

3. Amino Asylum

amino asylum

  • Effectiveness: 3.5/5
  • Product Range: 4.5/5
  • Pricing: 5/5
  • Payment, Shipping, Communication: 3/5

Effectiveness (3.5/5)

In terms of effectiveness, Amino Asylum’s products are generally well-received among the weight lifting community. However, a rare few customers have referred to them as ‘hit and miss’, with complaints of ‘bunk’ products — meaning that the active ingredient is being replaced.

Here is a customer review (via a forum), with a few others also sharing similar experiences:

Purchased 4 times, the last time was bunk, therefore onwards, stopped using them.

He later explained that Amino Asylum’s clenbuterol product had no effect. However, he tried a different branded clenbuterol in a lower dosage immediately after, and noticed a difference straight away.
Thus, although the majority of customers may receive genuine SARMs from Amino Asylum, every once in a while users may receive a bad batch.

Product Range (4.5/5)

All of Amino Asylum’s SARMs are in liquid form.

  • Ostarine – $29.99 (20mg/ml – 30ml)
  • MK-677 – $54.99 (25mg/ml – 30ml)
  • LGD-4033 – $34.99 (10mg/ml – 30ml)
  • RAD 140 – $39.99 (20mg/ml – 30ml)
  • S-23 – $34.99 (25mg/ml – 30ml)
  • Andarine – $29.99 (25mg/ml – 30ml)
  • YK-11 – $39.99 (10mg/ml – 30ml)
  • Cardarine – $44.99 (25mg/ml – 30ml)
  • GW-0742 – $49.99 (15mg/ml – 30ml)

Note: Their product range also includes several peptides, prohormones and post-cycle therapy supplements.

The only reason Amino Asylums does not score a 5 for ‘product range’ is due to powdered SARMs not being an option. 

Pricing (5/5)

Amino Asylum’s pricing is very cheap compared to other SARMs brands. This can be an opportunity for those that receive genuine SARMs. However, due to a lack of COA’s, there is still a possibility of receiving a bad batch.

Payment, Shipping, Communication (3/5)

Amino Asylum accepts debit card/credit card, Zelle, Cash App, Bitcoin and other cryptocurrencies.

However, there is a 4% fee when paying by credit card, which is not the case with Sports Technology Labs (free).

Shipping times can vary depending on where you live, with some customers reporting packages arriving in just a few days, and others waiting longer (with slow correspondence via email).

Customers have also commented that Amino Asylum do not always send a confirmation email for several days after purchase, so do not panic if this happens.


  • Most Affordable SARMs
  • Many satisfied customers
  • Excellent product selection


  • No certificates of analysis (COA)
  • A few customers complain of ‘bunk’ products
  • 4% credit card fee
  • Poor email communication


rad 140
We have elected Sports Technology Labs as the best SARMs company in 2023, with an impressive score of 19/20.

Sports Technology Labs’ provision of COAs (guaranteeing >98% purity), excellent product selection, competitive pricing and a positive checkout experience — currently sets them apart from the competition.

Chemyo is perhaps the biggest name in the SARMs niche, and they certainly have their advantages. These include: higher liquid volume per bottle, 10% discount when paying via bitcoin and >99% product purity (verified by COAs).

However, with Stenabolic and LGD-4033 missing from their product range, a hefty 7.95% credit card fee and unprompt email responses; there remains room for improvement.

Amino Asylum may still be the best SARMs company for those on a budget and willing to take a risk. For customers who get good batches, buying from AA could mean saving money in the short term.