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S4

S4

$100.00

  • ✓Increases Muscle Hardness
  • ✓Promotes Fat Loss
  • ✓Enhances Vascularity

GOLDEN AESTHETIC

BEST FOR: Cutting / Strength
Volume of Container: 1,000MG
Dose: 50mg / day
Cycle Length: 8 - 12 Weeks
Stack with: Ostarine, S23
UNIQUE ATTRIBUTE: Hard Muscle Look

S4 (Andarine) is highly regarded for its ability to promote a hard, dry, and vascular look while increasing strength and bone density. It is an excellent choice for cutting cycles and achieving a competitive physique.

STACKS WELL WITH

Purity: 99.8% Lean & Recovery
OSTARINE

OSTARINE

$100

  • Accelerates Joint Healing
  • Preserves Lean Muscle Mass
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Purity: 99.8% Endurance & Cardio
STENABOLIC

STENABOLIC

$100

  • Boosts Cellular Mitochondria
  • Accelerates Metabolic Rate
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Purity: 99.8% Mass & Strength
RAD140

RAD140

$100

  • Increases Power & Size
  • Enhances Muscle Retention
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Frequently Asked Questions

What is S4 (Andarine)?

S4, also known as Andarine (originally GTX-007), is a nonsteroidal selective androgen receptor modulator. It is characterized in research as a partial agonist of the androgen receptor, studied for tissue-selective effects on muscle and bone.

How does S4 work?

As a partial androgen-receptor agonist, S4 stimulates anabolic activity in muscle and bone tissue while binding the receptor less completely than a full agonist. This partial-agonist profile is a key focus of comparative SARM research.

What is the half-life of S4?

S4 has a relatively short half-life, commonly estimated at around 4 to 6 hours, which in research protocols often translates to divided daily dosing.

What does research note about S4?

Andarine’s most-discussed characteristic is a transient, dose-dependent visual disturbance — a yellowish tint to vision and reduced night vision — reported at higher exposures and generally resolving after discontinuation. It is an unapproved research chemical.

Is S4 sold for human use?

No. All products are supplied strictly for laboratory and research use only. They are not approved for human or veterinary use, diagnosis, treatment, or consumption.