Description
The S4 and cardarine stack pairs the original SARM with a PPAR-delta agonist. Both bottles are the same liquids we sell individually.
Buy the S4 and cardarine stack online
You get two full bottles: andarine S4 liquid and liquid cardarine. Buying them as a stack costs less than ordering each bottle on its own, and everything ships together in one package. Each bottle is filled from a batch with its own certificate of analysis, and each one has its own pipette, so there’s no cross-contamination between compounds. Browse more combinations in our SARMs stacks category.
What’s in the S4 and cardarine stack?
Andarine (S4) was the first SARM to reach wide research use. It’s a partial androgen receptor agonist with a short half-life. Cardarine (GW-501516) is a PPAR-delta agonist. It shifts muscle toward burning fat and has no androgen receptor activity.
Andarine is a partial androgen receptor agonist. Cardarine works on fat metabolism through PPAR-delta and has no androgen activity.
Research behind the S4 and cardarine stack
S4’s research is mostly in rats, covering muscle, bone and prostate. Cardarine has rodent and primate data on lipids and endurance. Both are research compounds only, and cardarine’s development stopped after tumor findings in rodents.
No published trial has combined them. Andarine studies are on PubMed.
S4 and cardarine stack specifications
- Contents: one bottle of andarine S4 liquid, one bottle of liquid cardarine
- S4 CAS: 401900-40-1
- Cardarine CAS: 317318-70-0
- S4 purity: 99.96% (COA 01/24/25)
- Cardarine purity: 99.57% (COA 07/06/25)
- Carrier: USP-grade PEG-400
- Packaging: UV-resistant glass bottles, graduated 1 mL glass pipettes, tamper-proof seals
Measuring and storage
Each compound comes in its own glass bottle with a graduated 1 mL glass pipette, so you can measure each one separately and keep your records clean. Label your draws by bottle, because the solutions look alike.
Store all the bottles upright, tightly capped and away from heat and direct sunlight. Room temperature is fine for PEG-400 solutions.
Lab testing and certificate of analysis
Each bottle in the S4 and cardarine stack comes from a batch tested by MZ Biolabs, an independent lab in Arizona. S4: 99.96% (COA 01/24/25). Cardarine: 99.57% (COA 07/06/25). Ask us for the full certificates and we’ll email them over.
S4 and cardarine stack FAQ
Why stack S4 with cardarine?
They target different receptors, so their effects can be studied side by side.
Does S4 affect vision?
At higher doses, a temporary yellow tint and reduced night vision have been reported.
What’s the concentration of each?
S4 at 50 mg/mL and cardarine at 20 mg/mL.
Why researchers buy from Sports Technology Labs
We’re an American company, and we keep the process simple. Raw material has to test at 98% purity or higher. Liquids are made with USP-grade PEG-400 and bottled in glass in the USA. Every batch goes to MZ Biolabs in Arizona for testing, and we publish the purity and COA date on the product page so you know what you’re getting before you order.
Shipping, returns and support
We offer free US shipping on orders over $149, plus an express option at checkout. If something isn’t right, our 60-day money-back guarantee covers it. You can email us any time with questions about testing, storage or your order.
For laboratory research use only
The S4 and cardarine stack is supplied strictly for laboratory and analytical research. It is not approved by the FDA, is not a dietary supplement and must not be used in people or animals. Nothing here is medical advice, and we won’t sell it for personal or athletic use.
Add the S4 and cardarine stack to your cart, or build your own combination from our liquid SARMs.
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