Results vary by protocol, individual health status, dosing, and lifestyle. That said, most patients on GLP-1 protocols (Semaglutide/Tirzepatide) report measurable weight changes within 4–8 weeks. GH secretagogue protocols (CJC-1295/Ipamorelin, Sermorelin) typically show noticeable changes in sleep quality, recovery, and body composition within 6–12 weeks. Recovery peptides like BPC-157/TB-500 are often felt within 2–4 weeks for acute injuries. NAD+ protocols often report energy and cognitive effects within days of infusion. Your physician will set realistic expectations during your consultation based on your specific goals and health history.