Scheduling, administration, biomarkers, and practical guidance.
Well-tolerated for long-term use
Target face, scalp, or areas of concern
5 days on, 2 days off to prevent receptor desensitization
Annual or biannual reset cycle
L-ascorbic acid at pH < 3.5 for maximum absorption; may irritate
Inject near target area for localised fibroblast response
Avoids UV-mediated copper oxidation; aligns with overnight skin repair cycle
Amplifies natural nocturnal GH pulse; aligns with deep-sleep collagen synthesis
Aligns with pineal gland circadian rhythm for telomerase activity
Provides antioxidant photoprotection during daytime UV exposure
No strong circadian dependency; consistency is more important than timing