Cycling numb hands usually means too much load is arriving at the front of the bike. The hand is often not the main problem. It is simply the first place where poor weight distribution becomes obvious.
You work directly with me, Lloyd Thomas. I assess how you are supporting yourself on the bike, how well the saddle is carrying you and why so much pressure is reaching the hands and forearms in the first place.
Numb hands rarely come from one simple detail. Reach, stack, saddle position, lever angle, handlebar shape and lack of support from the pelvis and trunk can combine to overload the front end and irritate the hands.
That is why thicker tape or different gloves may soften the symptom but often do not solve the actual problem.
I start with off-bike movement and then analyse the position under load. I am not only asking where the numbness shows up. I want to understand why your system is forcing so much pressure into that area.
I do not just tweak the handlebar and hope. I identify what in the overall system is actually overloading the hands.
Use the next step that best matches your situation, then move into the right service or advice page.