Another 2022 double-blind study (n=48) combined GHK-Cu with hyaluronic acid, showing 25% fine line reduction and 18% hydration improvement at 8 weeks (An et al., 2022)
Combining them allows researchers to investigate multiple regenerative pathways within a single experimental formulation
Because of their relatively low purity levels and attendant immunogenetic risk, theyre relegated to laboratory use only.24 Selank is not FDA-approved, and pharmaceutical-grade versions are hard to come by in the United States, so most of what youll find (usually online, through vendors without validated reputations) is research-grade
474 The neocortex of Down syndrome individuals is characterised by profound (3050%) decrease in the number of neurones and neuroglia
EPA and DHA can positively regulate systemic microcirculation and improve ocular blood flow, as well as reduce optic neuropathy (125)
Understanding your specific type of tear can provide some clarification as to which options are best for you