Honestly the needles are prob the sketchier part lol Checked baggage is best option always. I legit bring a medicine bag when I travel lol larger than a gallon ziplock worth of bottles and supplements (Backpack and checked luggage). The ONLY time I got stopped to at the security line I was shitting bricks, but the whole reason they stopped me is because of a bottle of TALCOM POWDER. Agent was kinda laughing but still swabbed it for traces of explosives LOL Gave it back and said to put it in checked bag next time.