This concentration makes sense for people doing microdosing protocols at sub-2.5mg doses
For references and more information , see the section on homocysteine in the Vitamin B 12 article
[DOI] [PMC free article] [PubMed] [Google Scholar] Longo N, Frigeni M, Pasquali M (2016) Carnitine transport and fatty acid oxidation
Others use 1%, which is actually enough to move the needle on skin and hair
Externally: traditional Indian skincare has used green gram flour (moong flour) as a face wash and mask for centuries - its saponins gently cleanse pores, its proteins nourish skin cells, and its anti-inflammatory flavonoids reduce redness
(87) noted in their review that co-encapsulation systems can effectively mask the astringency of different bioactive compounds, enhance their stability and bioavailability, and maximize their biological effects through synergistic interactions