Signs & Symptoms Congenital melanocytic nevi are brown or sometimes blackish papules (small, solid bumps) or patches (flat areas larger than a thumbnail) that are present at birth or shortly after (before age 1 year)
And unlike SubQ glutathione, it has decades of human trial data backing its use
Bas H, Cilingir O, Tekin N, Saylisoy S, Durak Aras B, Uzay E, Erzurumluoglu Gokalp E, Artan S (2020) Turkish patient with novel AHCY variants and presumed diagnosis of S-adenosylhomocysteine hydrolase deficiency
Practical Storage Setup: Do This, Not That The textbook answer is boring: refrigerate between 2 and 8 C, protected from light, in the original packaging, never frozen