Protects against UVA/UVB while helping prevent new dark spots
During red blood cell production, hematopoietic stem cells (HSCs) undergo several rounds of cell division and differentiation to produce mature red blood cells
If reduced genital blood flow is the primary issue, PDE-5 inhibitors (the same class of medications that includes sildenafil) could theoretically help by increasing blood flow to genital tissue
Yonekura, S., Terauchi, F., Hoshi, K., Yamaguchi, T
What is the difference between bacteriostatic water and sterile water for peptides
For readers who want primary sources, see a PubMed report on a combination study (PubMed report), a related review article (review in PMC), and a registered clinical trial listing (ClinicalTrials.gov trial)