IGF-1 Proteins

IGF-1 proteins, or Insulin-like Growth Factor 1, are vital hormones that stimulate cell growth, muscle repair, and metabolism. Produced mainly in the liver, IGF-1 supports protein synthesis, enhancing muscle hypertrophy and recovery post-exercise. In 2026, they’re popular in supplements for weight loss, energy boost, and anti-aging effects like improved skin and cognition.