Ostarine

What it does:

Ostarine (MK-2866) is a selective androgen receptor modulator (SARM) that promotes lean muscle retention, strength, and improved recovery. It is highly effective for cutting or recomposition cycles where fat loss and muscle preservation are priorities. It also improves joint healing and endurance.

Normal Applications:

Initially developed to treat muscle wasting and osteoporosis, Ostarine is commonly used in the fitness community to maintain muscle during caloric restriction. Its mild nature and minimal side effects make it beginner-friendly and useful for both men and women.

Common Side Effects:

At moderate doses, side effects are minimal but may include mild testosterone suppression, fatigue, or nausea. Ostarine does not aromatize, and liver toxicity is rare. Some users report temporary suppression of natural testosterone at higher doses or longer cycles.

Administration Recommendations & Ideal Dosages:

Typical doses range from 10–25 mg per day, for 6–8 weeks. Women often use 5–10 mg. It stacks well with other SARMs such as Andarine or Cardarine. A light PCT may be used depending on cycle intensity and duration.