Mastorin for Muscle and Fat Loss

S 23 (Mastorin)

S 23 Mastorin by Dragon Pharma contains Mastorin (S 23), a highly potent SARM delivered in 100 tablets at 10 mg each. Known for its ability to promote muscle hardness, strength, and fat loss, it's a top choice for bodybuilders aiming for a shredded, defined physique in cutting cycles. With a half-life of approximately 12 hours, S 23 ensures consistent anabolic effects with daily dosing.

What It Is

Mastorin, commonly known as S 23, is a third-generation SARM with high binding affinity to androgen receptors, originally developed for potential medical use in muscle wasting and bone health. In bodybuilding, it's valued for its steroid-like effects on muscle hardness and fat loss with fewer side effects than traditional anabolic steroids. Its oral administration and selective action make it a safer alternative for achieving a lean, vascular look.

How It Works

S 23 binds selectively to androgen receptors in muscle and bone, stimulating protein synthesis and nitrogen retention to enhance muscle density and strength. It promotes fat oxidation by increasing metabolic rate, making it ideal for cutting phases. S 23 also exhibits mild anti-estrogenic properties, reducing water retention for a dry, defined appearance. Its half-life of 12 hours requires split daily dosing, with detection times up to 2–3 weeks for drug-tested athletes.

Benefits

• Muscle Hardness: Enhances muscle density and vascularity for a chiseled look.
• Fat Loss: Boosts metabolism to burn subcutaneous fat.
• Strength Gains: Increases power for intense workouts.
• Muscle Preservation: Maintains lean muscle during calorie deficits.
• Mild Profile: Lower risk of estrogenic or severe androgenic side effects.

Who It's For

S 23 Mastorin is ideal for male and female bodybuilders aged 21–40 in cutting cycles, seeking muscle hardness, fat loss, and strength. It's suitable for intermediate to advanced users familiar with SARMs. Women can use lower doses to minimize virilization risks. Not for: Individuals under 21, those with liver or hormonal issues, or those not under medical supervision. Regular blood work is recommended.

How to Use

Dosage: Typical dosage for men is 10–30 mg/day (1–3 tablets), split into 2 doses (e.g., morning and evening) due to the 12-hour half-life. Women should use 5–10 mg/day to minimize virilization risks. Beginners start at 10 mg/day (men) or 5 mg/day (women) to assess tolerance.

Administration: Take orally with water, preferably with meals to reduce stomach irritation. Cycles typically last 6–8 weeks, followed by a 4–8 week break to maintain receptor sensitivity. Pair with a high-protein diet (1.5–2 g/lb body weight) and training for optimal results.

Results Timeline: Muscle hardness and strength improvements within 1–2 weeks, with noticeable fat loss and definition by 4–6 weeks. Peak results occur at 6–8 weeks.

Stacking Suggestions

S 23 is effective for stacking:

• Cutting Stack: Combine with Cardarine (10–20 mg/day) for enhanced fat loss and endurance.
• Lean Muscle Stack: Pair with Ostarine (10–20 mg/day) for muscle preservation and definition.
• Support: Use with fish oil (2–4 g/day) to support cardiovascular health.

Side Effects

S 23 has a potent profile and may cause:

• Hormonal: Significant testosterone suppression at higher doses; PCT required for cycles over 6 weeks.
• Androgenic: Acne, hair loss (if predisposed), or increased aggression.
• Other: Night sweats, fatigue, or mild liver stress; monitor with blood work.
• Hepatotoxicity: Minimal, but prolonged use may stress the liver.

Regular blood work to monitor testosterone, lipids, and liver function is recommended.

Post Cycle Therapy (PCT)

S 23 can cause significant testosterone suppression, particularly at doses above 20 mg/day or cycles over 6 weeks. Use Clomid (25–50 mg/day) and Nolvadex (20 mg/day) for 4 weeks, starting 1–2 days after the last dose. Monitor testosterone levels via blood work to confirm recovery.