This is likely because they dont see them as being effective or safe enough for commercial return, to justify the research and development costs
Amy Arnsten investigated the use of 600 mg of NAC combined with the medication guanfacine to treat severe Long COVID brain fog
others take 2-3 weeks Mild injection site reactions (if applicable) are common and self-limited Phase 3: Active Healing Phase (Weeks 3-8) Progressive improvement in symptoms For musculoskeletal conditions, this is the optimal window for physical therapy and rehabilitation For GI conditions, patients often begin reintroducing previously problematic foods Phase 4: Consolidation (Weeks 9-12+) Continued structural healing Transition to maintenance dosing if appropriate Decision point for stacking with TB-500 if additional systemic support is needed Phase 5: Transition and Maintenance Tapering off peptides after goal achievement Maintenance protocols for chronic conditions (e.g., 3 months on, 1 month off) Coordination with long-term wellness strategies (nutrition, exercise, stress management) For more information on conditions that may benefit from this approach, visit my Conditions Treated page
Speichinger notes that sometimes there is a second step to the progesterone challenge, where estrogen is given first and followed by progesterone, to cause the withdrawal period
They also contain antioxidants and certain beneficial trace minerals that support healthy circulation
