In some Western countries, around half of women in their 20s and 30s use it (Germany 52.6%, France 43.8%)
Histamine sensitivity may cause mild symptoms, while histamine intolerance often involves more systemic, ongoing reactions, especially after eating high-histamine foods
Blood work to consider includes iron/ferritin, vitamin B12, thyroid function, vitamin D, complete blood count, and metabolic panel
Putrescine delays postovulatory aging of mouse oocytes by upregulating PDK4 expression and improving mitochondrial activity
Neural theory implicates neuromediators and catecholamines, while biochemical theory blames melanogenesis byproducts and other biochemicals in damaging melanocytes
Your stomach acids and digestive enzymes can break down many peptides before they reach your bloodstream