There are no human clinical trials of Dihexa itself
Supplementing with collagen can help rejuvenate the skin, making it appear more youthful and hydrated
Published work on intranasal peptide delivery (for insulin analogs, calcitonin, and oxytocin) demonstrates that bioavailability for this size class without enhancers is typically in the low single-digit percent range, though these data are from different peptides with different charge profiles
A 2024 systematic review found some positive results (66.7% of studies reported positive impact), but methodological issues in those studies (small sample sizes, lack of biochemical validation, poor randomization) make it hard to draw firm conclusions
Combat Visible Signs of Aging By reducing oxidative stress at the cellular level, glutathione IV therapy supports tighter, healthier-looking skin over time