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It does not cause photosensitivity (unlike retinoids), does not thin the skin (unlike corticosteroids), and does not require a tolerance-building period

Many researchers combine it with collagen, glucosamine, or other joint-support supplements

Firmer skin

Physical stamina often improves, too, so a flight of stairs or an afternoon walk may feel less draining

This is highly speculative because: Oral bioavailability differs between species Route of administration affects systemic exposure Species differences in peptide metabolism and clearance are unknown Current Practice Patterns Current practice patterns from unregulated sources typically involve: Subcutaneous injection: 0.25-0.5 mg once or twice daily, administered near injection sites for localized effects or abdominally for systemic distribution

Research community discussions most often use 50 to 150 mg by mouth each day, while subcutaneous examples use much smaller amounts