TD : Depends on the Airport
BWI, JFK, DCA, LGA, PHL, EWR, DFW would probably not let the gel pass thru.
I fly with my full tub of Alphamine every week from Memphis to Philadelphia and it has not been a problem. If you do not need to travel with the gel, its all good, I do not have any gel supps so cannot assist with that. Apologies.