For sensitive skin or chronic conditions, start with low concentration, patch-test behind the ear or inner arm, then apply to the face if no reaction occurs
When histamine is released from your mast cells several things may happen: Increased gastric acid secretion leading to bloating, flatulence, indigestion, constipation or diarrhea Increased heart rate Flushing Headache Itching Hives Sinus congestion In rare, more serious cases, histamine can trigger asthma attacks or even cardiac arrest
The physical act of piercing the stopper can also degrade it over time, potentially compromising the seal
Hum Reprod (2016) 31:25262
Nighttime At least one case study has shown that L-carnitine may help with nighttime leg cramps, although this case study involved an individual who had experienced a stroke