Syn Pharma Ostarine

What is Ostarine (MK-2866) by SYN Pharma?

Ostarine, also known as **MK-2866**, is one of the most well-researched and widely used Selective Androgen Receptor Modulators (SARMs). Originally developed to combat muscle wasting and age-related degeneration, Ostarine is now popular in performance and aesthetic research for its ability to support lean muscle growth, preserve strength during cutting, and improve recovery without the side effects associated with anabolic steroids.

SYN Pharma’s Ostarine is produced to research-grade standards, providing purity and consistency for reliable dosing in lean mass or recomposition studies.

Ostarine Benefits

Ostarine offers a balance of anabolic activity and safety, with the following key benefits:

• Promotes lean muscle mass gains: ideal for bulking without water retention or bloating;
• Preserves muscle in a calorie deficit: commonly used during cutting cycles to maintain strength and size;
• Improves recovery and joint support: may enhance connective tissue resilience and reduce inflammation;
• Non-liver toxic: unlike oral steroids, Ostarine is not methylated and carries minimal liver impact.

Potential Side Effects

Ostarine is considered one of the mildest SARMs available. However, some users may experience:

• Mild testosterone suppression (dose and duration dependent);
• Increased hunger or appetite;
• Temporary drop in HDL (good) cholesterol with extended cycles;
• Rare reports of lethargy at higher doses.

Short cycles and moderate doses generally result in minimal side effects, with fast recovery post-use.

Contraindications

Ostarine should not be used under the following conditions without professional oversight:

• Pre-existing hormone-sensitive cancers;
• Severe liver or kidney impairment;
• Pregnancy or breastfeeding (in women);
• Stacking with multiple suppressive compounds without PCT planning.

Ostarine Dosage and Administration

Typical Ostarine dosing ranges from **10–30 mg per day**, depending on user experience and goals. Most first-time users begin at **10–20 mg/day** for **6–8 weeks**, while experienced users may run longer cycles up to 12 weeks at higher doses.

Ostarine is taken once daily, with or without food, and does not require split dosing due to its long half-life (~24 hours).

8-Week Lean Mass or Recomp Protocol

Ostarine Standalone Cycle

Common Questions About Ostarine

Do I need PCT after an Ostarine cycle?

Low to moderate doses (10–20 mg/day) may not require a full PCT. However, higher doses or cycles over 8 weeks may cause mild suppression. A short PCT with Nolvadex (20 mg/day for 2 weeks) is often used for safety.

Can I stack Ostarine with other SARMs?

Yes. Ostarine stacks well with MK-677 for bulking, or with Cardarine and S4 for fat loss and endurance. It also pairs with YK-11 or LGD-4033 for more aggressive lean mass cycles.

Is Ostarine liver toxic?

No. Ostarine is non-methylated and does not stress the liver like many oral steroids. Routine bloodwork is still recommended for long cycles.

Is Ostarine legal?

Ostarine is not approved for human consumption but is legal to purchase for research purposes. SYN Pharma offers Ostarine strictly for investigational and non-clinical use.