No known drug interactions for the matched ingredients — not a guarantee none exist. Check your meds →
Dietary supplement

S-23 Ingredients & Drug Interactions

by Swoll Mafia

Capsule Category: Non-nutrient/non-botanical
No known interaction
The interaction bottom line No known interaction

S-23 is a dietary supplement by Swoll Mafia 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 S-23 by Swoll Mafia

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.

From our pharmacy team — supplement deep dive

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains one active ingredient: Cyanobol, the experimental compound S-23. The product also includes creatine as an inactive ingredient.

Does it work?

Couldn't assess
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Not assessable

This is a single-ingredient S-23 product and its label doesn't state a use — see S-23's own graded uses on its monograph.

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.

The evidence we hold for Cyanobol and athletic performance, muscle strength, cachexia (severe muscle wasting), and muscular dystrophy is insufficient to rate it. The same applies to its use for breast cancer.

In short, we don't have reliable data showing whether this ingredient works for any of these purposes.

The evidence, ingredient by ingredient S-23

How safe is it?

Some data gaps
Safety Information · database check
Some gaps

Safety data exists for these ingredients, but with some important gaps.

Why this rating?
  • We hold adverse-effect (side-effect) data for 0 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Cyanobol is an unapproved experimental drug with no human safety data and known hormonal risks. The safety data advises against using it during pregnancy — it alters hormones and may harm a developing baby.

It's also hormonally active, so safety is unknown while breastfeeding; avoid it then too. Adverse effects in trials aren't documented in our data, but that's because human trial data itself doesn't exist for an experimental compound.

Side effects, ingredient by ingredient S-23

Meds to double-check

No known interactions
Known Interaction Concern · database check
No known interactions

No medication interactions are currently documented for the matched ingredients — that isn't a guarantee none exist.

Why this rating?
  • None of the 1 matched ingredient has a documented medication interaction on file.

No interactions are documented in our data for the ingredient we could check. However, because Cyanobol is an unapproved experimental compound with unknown effects on the body, talk with your doctor or pharmacist before starting it if you take any medications.

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.

S-23 is an unapproved experimental drug with no established safety record in humans. If you're considering it, talk with your doctor first — this isn't a conventional supplement, and they need to know you're thinking about trying it.

Definitely avoid it if you're pregnant, planning pregnancy, 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 Feb 25, 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

At a glance

General information

Key facts about S-23, straight from the product label.

Brand Swoll Mafia
Barcode (UPC) 171290958927
Net contents 90 Capsule(s)
Market status On market
Date entered into DSLD Feb 25, 2019
DSLD ID 200254
Product type Non-nutrient/non-botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years)
From the label
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 S-23 by Swoll Mafia, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
3 Capsule(s)
Maximum serving Sizes:
3 Capsule(s)
Servings per container
30
UPC/BARCODE
171290958927
IngredientAmount% DV
Cyanobol30 mg--

Other ingredients: Creatine

Tap any ingredient to jump to its full detail below.

Label statements
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.
Suggested/Recommended/Usage/Directions

Directions: Administer 3 capsules once daily. Do not exceed 1 serving within 24 hours.

Precautions

Do not exceed 1 serving within 24 hours. Warning: Do not exceed recommended dosage. Consult with a physician before use.

Keep out of reach from children.

Do not administer if test subject is at risk or has health issues involving heart, kidney, liver, stroke, difficult urinating, depression, anxiety or seizure disorder.

All customers represent and warrant that through their own review and study that they are fully aware and knowledgeable about the following product. All customers must be 18 years old to purchase. Under no circumstance shall seller be liable for consequential damages, whether purchases claim contract, negligence, strict liability or otherwise. In purchasing this product the purchaser agrees to the above

For experimental use only Not for human consumption

Formula

Cyanobol

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease or illness.

Seals/Symbols

Proudly made in the United States USA

See for yourself

S-23 by Swoll Mafia label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

What’s inside

The Ingredients in S-23 by Swoll Mafia

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size3 Capsule(s) Dosage formCapsule Servings per container30 Amounts shown are per serving.

Cyanobol

No known
interactions
30 mg per serving

S-23 is an experimental, non-prescription synthetic drug called a selective androgen receptor modulator (SARM), not a dietary supplement, herb, or nat...

Cyanobol monograph & interactions

Other (inactive) ingredients: Creatine. These complete the product’s ingredient list but are not active constituents.

Interaction report

S-23 by Swoll Mafia Drug Interactions

We don’t currently list any known drug interactions for the mapped ingredients in S-23. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.

The maker

Brand information

Manufacturer and brand details for S-23, from the product label.

Swoll Mafia

See all Swoll Mafia products
Name
Swoll Mafia
Pharmacist Counseling Corner

S-23 by Swoll Mafia: Common Questions

Does S-23 by Swoll Mafia interact with any medications?
We do not currently list a known interaction for the mapped ingredients in S-23. This does not guarantee none exist, so confirm with your pharmacist.
How can one product interact with so many drugs?
S-23 contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Is S-23 approved by the FDA?
No. Cyanobol is an unapproved experimental drug. It hasn't gone through the safety and efficacy testing required for approval.
Does it actually build muscle?
The evidence we hold is insufficient to rate whether it works for athletic performance or muscle strength. There's no reliable data showing it does.
Can I take it if I'm pregnant or breastfeeding?
No. The safety data advises against use during pregnancy because it alters hormones and may harm a developing baby. Safety is unknown while breastfeeding and it's hormonally active, so avoid it then too.
What are the side effects?
We don't have adverse effects documented in trials — partly because human trial data doesn't exist for an experimental compound. Talk with your doctor about the hormonal risks before you consider taking it.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Not sure if S-23 is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.

S-23 label
Go deeper

The Full Monographs Behind S-23’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Sources

Sources & How We Checked

S-23'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.

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
  1. Joseph JF, Parr MK. Synthetic androgens as designer supplements. Curr Neuropharmacol. 2015;13(1):89-100. PubMed

See these in context on the S-23 monograph →

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

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