The serum should be stored at room temperature (1525C / 5977F) away from direct sunlight light degrades the copper-peptide complex over time, which is why quality formulations use opaque or amber packaging
B-7 (biotin): Biotin is known for its role in maintaining healthy hair, skin, and nails, but thats not the only purpose that this B-complex vitamin serves
Despite growing popularity, minimal human data exists
(3) Duzel A, Vlainic J, Antunovic M, Malekinusic D, et al
It stimulates collagen production, an essential protein needed for tissue repair
Most importantly, vitamin B12 methylcobalamin is the specific form of B12 needed for nervous system health