There are product-linked studies that need independent confirmation

One five-star reviewer calls this spray "a game changer." They write, "I've always struggled with swallowing pills, so finding a liquid spray that actually tastes good (the berry flavor is light and not fake or overpowering) was a big win for me." Vegan-friendly Clean Label Project Certified and certified organic Third-party tested for purity and potency Good for those who dislike swallowing pills Contains natural form of vitamin B12 Two flavor options Can be tricky to ensure you're getting an accurate dose Some reviewers complain that the nozzle leaks Form: Dissolving lozenges | Type of vitamin B12: Methylcobalamin and cyanocobalamin | Dose: 1 lozenge per day | % of Daily Value (DV) per serving: 208,333% Meeting your daily vitamin B12 needs can become a challenge as you age, thanks to reductions in appetite, higher risk of pernicious anemia (an autoimmune condition) and GI-related changes that make it harder to properly absorb vitamin B12

Combined use should always follow clinical assessment and should not replace investigation of underlying causes
But heres the thing: While some dietary supplements billed as nootropics have some promising science behind individual ingredients, experts largely agree that the use of nootropics by healthy individuals to boost brain health is concerning due to the lack of clinical evidence regarding their efficacy, safety, and social consequences, especially in long-term use (18)
Epub 2018 Sep 17
Every vial carries a unique accession number you can look up directly with the lab