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CASE REPORT A 31-year-old male presented with a chronic tear in the midsubstance of his right Achilles tendon

By age 60, that concentration has fallen to approximately 80 ng/mL, a 60% decline that correlates directly with reduced healing capacity, collagen loss, and visible aging

Some research protocols explore stacking with melatonin, magnesium, or GABA-related compounds, but this raises the risk of excessive sedation

While some of these effects can be beneficial in specific contexts, they create complexity, side effects, and potential contraindications that limit the applicability of growth hormone therapy for individuals seeking primarily fat loss

For long-term knee osteoarthritis, oral collagen peptides (3-5g daily) have stronger randomized controlled trial support across multiple studies totaling 507 patients

Indications: Vitamin medicine