S23 Ingredients & Drug Interactions
What is this page for?
First and foremost: checking S23 against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.
Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy
S23 is a dietary supplement by Entropic Labs with 1 active ingredient. Its ingredients are commonly taken for muscle building, fat loss, athletic performance enhancement.We don’t currently list a known drug interaction for its mapped ingredients — but that doesn’t guarantee none exist, so always confirm with your pharmacist.
HelloPharmacist Scorecard of S23 by Entropic Labs
Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.
What’s inside
Full disclosure
This product contains one active ingredient: S-23, an experimental selective androgen receptor modulator (SARM) — a compound designed to affect hormone activity. The capsule also contains rice flour and gelatin as inactive ingredients.
Does it work?
Couldn't assess
The evidence for S-23 is insufficient to rate. We don't hold reliable data showing whether it works for athletic performance, muscle strength, cachexia (severe muscle wasting), muscular dystrophy, or breast cancer.
Because it's an unapproved experimental drug, human studies are limited.
How safe is it?
Some data gaps
S-23 is an unapproved experimental compound with no established human safety data and known hormonal risks. The safety notes advise against its use during pregnancy — it's rated possibly unsafe because it alters hormones and may harm a developing baby.
It's also advised against while breastfeeding, since it's hormonally active and its effects on an infant are unknown. No adverse effects data is on file, but that reflects the lack of human study, not proof of safety.
Meds to double-check
No known interactions
No interactions are documented for S-23 in our data. However, because this is an unapproved experimental drug with hormonal effects and no human safety data, talk with your doctor or pharmacist before combining it with any medication.
The bottom line
Scorecard at a glanceFully disclosed formula with no assessable stated purpose. No medication interactions are currently documented, and some safety-information gaps remain.
This is an experimental drug without human safety data or proven effectiveness for any condition. Because of its hormonal activity and unapproved status, it carries real risks that we can't fully characterize.
If you're considering it, talk with your doctor first — and definitely do not take it if you're pregnant, planning to become pregnant, or breastfeeding.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Dec 22, 2019.
This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed
General information
Key facts about S23, straight from the product label.
| Brand | Entropic Labs |
|---|---|
| Net contents | 0 Not Present |
| Market status | On market |
| Date entered into DSLD | Dec 22, 2019 |
| DSLD ID | 209898 |
| Product type | Non-nutrient/non-botanical |
| Supplement form | Capsule |
| Dietary claims / uses | All Other |
| Intended target group(s) | Adult (18 - 50 Years) |
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.
Supplement Facts
The label details for S23 by Entropic Labs, sourced from the NIH Dietary Supplement Label Database.
Tap any ingredient to jump to its full detail below.
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
General Statements
"The Super Sarm"
For Research Use Only
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
S23 by Entropic Labs label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.
View the full label (PDF)The Ingredients in S23 by Entropic Labs
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 Capsule(s) Dosage formCapsule Servings per container60 Amounts shown are per serving.
S-23
No knowninteractions
S-23 is an experimental, non-prescription synthetic drug called a selective androgen receptor modulator (SARM), not a dietary supplement, herb, or nat...
S-23 monograph & interactionsOther (inactive) ingredients: Rice Flour, Gelatin. These complete the product’s ingredient list but are not active constituents.
S23 by Entropic Labs Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in S23. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.
Brand information
Manufacturer and brand details for S23, from the product label.
S23 by Entropic Labs: Common Questions
Does S23 by Entropic Labs interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Is S-23 approved by the FDA?
Can I take S-23 if I'm pregnant or breastfeeding?
Does S-23 actually work for building muscle or athletic performance?
What is S-23?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if S23 is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.
The Full Monographs Behind S23’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
S23's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.
The 1 references behind this product’s interaction data
Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.
S-23 1 reference
- Joseph JF, Parr MK. Synthetic androgens as designer supplements. Curr Neuropharmacol. 2015;13(1):89-100. PubMed
Parts of this content are provided by the Therapeutic Research Center, LLC.
DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
© 2021 Therapeutic Research Center, LLC