Product Review · Updated November 2026
Chemyo S-23 ReviewSARM Solution 20mg/ml Rated and Reviewed
In this Chemyo S-23 review, we rate the S-23 20mg/ml 50ml SARM solution on labelling, batch testing, price and value. You also get the research background, the risks and our verdict.
Our Editorial Score
Rated on public quality signals, not personal use.
Chemyo S-23 at a Glance
Chemyo S-23 is one of the newer and less common compounds in the Chemyo range. It contains the SARM S-23 dissolved in a liquid carrier for laboratory research.
Each bottle holds 50ml at a stated concentration of 20mg per ml. In other words, one bottle contains 1,000mg of compound in total. Like every Chemyo product, it carries a batch number and research-only wording.
So how does it compare? Overall, our Chemyo S-23 review found strong quality signals and good value per milligram. However, it has no value pack or powder option, and research on the compound is limited.
Product Specs
| Compound | S-23 |
|---|---|
| Class | SARM |
| Format | Liquid solution |
| Concentration | 20mg/ml |
| Volume | 50ml |
| Total per bottle | 1,000mg |
| Batch number | Yes |
| Price | $69.99 |
What Is S-23? The Research Background
S-23 is a non-steroidal selective androgen receptor modulator. It came from the same research group that developed Andarine and Ostarine.
Researchers studied S-23 in rats as a possible male hormonal contraceptive. In those studies, it reversibly lowered sperm production. At the same time, it affected muscle, fat and bone.
However, S-23 has never been tested in a human clinical trial. As a result, its effects and risks in people are largely unknown, and no regulator has approved it.
Our Chemyo S-23 Review in Detail
Clear and Consistent Label
The label states the compound, the concentration and the volume. It also carries a batch number and research-only wording. Just as important, it makes no health or performance claims.
Batch Number and Lab Report
Each bottle links to a batch and to a third-party Certificate of Analysis. A good report confirms identity, purity and concentration. Therefore, always match the batch on your bottle to the report.
Good Value per Milligram
At $69.99, Chemyo S-23 is one of the lower-priced liquids. Moreover, its 20mg/ml concentration gives 1,000mg per bottle, twice as much as RAD-140 for less money.
Sold Through Authorised Resellers
After chemyo.com closed, ChemyoLabs became the main source for the liquid range. S-23 is a less common compound, so it is worth checking stock before you plan research around it.
Liquid Only
S-23 comes only as a 50ml liquid. There is no powder and no value pack. So if you want more choice, compounds such as Cardarine or MK-677 offer far more options.
Chemyo S-23 Pros and Cons
Pros
- Clear label with batch number
- Third-party lab testing
- 1,000mg per 50ml bottle
- Good value per milligram
- Sold by an authorised reseller
Cons
- No powder or value pack option
- Animal research only, no human trials
- Copycat bottles use the Chemyo name
- Not approved for human use
- Banned in all tested sport
S-23 Risks: What the Research Says
Good quality control tells you what is in a bottle. It does not make the compound safe for people. For S-23, the main concerns come from animal studies and the lack of human data.
How to Verify Genuine Chemyo S-23
Copycat sites use the Chemyo name, so check every bottle before you trust it.
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Buy from an authorised reseller
Use ChemyoLabs or another seller with a direct link to the producer.
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Find the batch number
It should be printed clearly on the bottle and the label.
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Match it to the lab report
The Certificate of Analysis must show the same batch number.
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Check the seal and label
Look for a sealed cap, sharp printing and research-only wording.
Chemyo S-23 Review: Our Verdict
Chemyo S-23 earns 4.3 out of 5. It has a clear label, batch traceability and third-party testing. Moreover, it offers good value per milligram.
However, it has no pack or powder option, and the compound has no human research behind it. Buy only from an authorised reseller, and match every batch number to its lab report.
Related Chemyo Reviews
Chemyo S-23 FAQ
What is Chemyo S-23?
Chemyo S-23 is a research liquid containing the SARM S-23 at 20mg/ml in a 50ml bottle. It is sold for laboratory research only.
How much S-23 is in one bottle?
Each 50ml bottle at 20mg/ml contains 1,000mg of S-23 in total.
How much does Chemyo S-23 cost?
At the time of writing, Chemyo S-23 costs $69.99 for 50ml at ChemyoLabs. Prices can change, so check the shop.
Where can I buy Chemyo S-23?
We recommend ChemyoLabs, an authorised Chemyo reseller. Always match the batch number to its lab report.
What was S-23 studied for?
Researchers studied S-23 in rats as a possible male hormonal contraceptive.
Has S-23 been tested in humans?
No. Research on S-23 comes from animal studies. It has never been tested in a human clinical trial.
Is S-23 banned in sport?
Yes. WADA prohibits SARMs, including S-23, at all times.
Compare every option in our Chemyo review, or see where to buy Chemyo.
Buy Genuine Chemyo S-23 From an Authorised Reseller
Get the Chemyo S-23 50ml SARM solution with a batch number and a third-party lab report.
Disclaimer: Chemyo.info is an independent information site. It is not the manufacturer or a seller. Our scores are editorial opinions based on public quality signals, not product testing on people. This page is general information only, not medical, legal or purchasing advice. S-23 is not approved by any medicines regulator and has never been tested in a human clinical trial. Chemyo products are for laboratory research only and are not approved for human use. Sport bans them, and they may be restricted or illegal in your country. Always speak to a qualified doctor and check your local laws.