MK‑677 (Ibutamoren)

Basic Introduction

MK‑677, also known as Ibutamoren, is an orally active, non‑peptide growth hormone secretagogue (GHS). It mimics the action of ghrelin, the hunger hormone, to stimulate the pituitary gland to naturally increase the release of human growth hormone (HGH) and insulin‑like growth factor‑1 (IGF‑1).

Unlike synthetic exogenous HGH injections, MK‑677 boosts the body’s own endogenous growth hormone production without suppressing the natural HGH‑axis. It is widely used in anti‑aging, muscle growth, fat loss, sleep improvement, bone health, and metabolic optimization programs, and is a popular compound in the product portfolio of Slimbiotech and SSR Biotechnology.

Core Mechanism

MK‑677 binds to the ghrelin receptor in the brain, triggering natural HGH pulse release, elevating IGF‑1 levels, improving nitrogen retention, enhancing protein synthesis, and regulating overall endocrine balance. It has no negative impact on testosterone or gonadal function.

Key Functions & Main Benefits

1. Boost Endogenous Growth Hormone & IGF‑1 Levels

   Significantly raises natural HGH and IGF‑1 secretion, supporting overall endocrine rejuvenation, reversing age‑related hormone decline, and delaying biological aging.

2. Lean Muscle Growth & Prevent Sarcopenia

   Promotes muscle protein synthesis, increases lean muscle mass, enhances muscle density and strength, and slows age‑related muscle loss (sarcopenia). It works synergistically with TB‑500, BPC‑157, and HGH fragments for better body recomposition.

3. Reduce Body Fat & Improve Metabolism

   Enhances fat breakdown and lipolysis, optimizes insulin sensitivity, improves metabolic rate, and assists weight‑management cycles combined with Tirzepatide, Retatrutide, and other GLP‑1 peptides.

4. Deep Sleep Improvement & Energy Enhancement

   Improves slow‑wave deep sleep quality, stabilizes circadian rhythm, relieves insomnia and fatigue, increases daily energy levels, and accelerates post‑workout recovery.

5. Skin Rejuvenation & Anti‑Aging

   Stimulates collagen production, improves skin elasticity, reduces fine lines and sagging, thickens skin texture, and delivers anti‑aging effects comparable to senolytic peptides like FOXO4‑DRI.

6. Bone Density & Joint Health Support

   Increases bone mineral density, strengthens bones, relieves joint pain, accelerates cartilage repair, and reduces risks of osteoporosis and joint degeneration.

7. Appetite Regulation & Nutrient Absorption

   Enhances healthy appetite and gastrointestinal nutrient absorption, ideal for people with poor digestion, low body weight, or nutrient‑deficient conditions.

Standard Usage Protocol

• Dosage: 10–25 mg per day, oral administration, taken once daily before bedtime
• Cycle: 8–12 weeks per cycle, continuous long‑term low‑dose use is safe
• Synergistic Stack: Combined with FOXO4‑DRI, PT‑141, HMG, and Sterile Water for Injection‑based peptides for comprehensive anti‑aging and body optimization
• Side Effects: Mild temporary hunger, slight water retention, rarely numbness, which usually fade after adaptation

Product Position

MK‑677 (Ibutamoren) is a core oral anti‑aging and body‑recomposition compound provided by SSR Biotechnology & Slimbiotech, widely used in global longevity clinics, fitness optimization, hormone balance therapy, and high‑end metabolic health programs.

Research Use Only. This catalog information is reproduced from the customer legacy website. Products are not for human or veterinary use. Confirm current specification, availability and documentation before ordering.