Best Bicep Exercise

If you want bigger biceps you need to add the concentration curl to your bicep routine. It showed the highest activation of muscle fibers compared to preacher's curl, barbell curl, chin-ups, and incline curl. If you want to see what a concentration curl looks like click on the youtube link.

https://www.acefitness.org/continuing-education/prosource/august-2014/4933/ace-study-reveals-best-biceps-exercises/#

https://youtu.be/ZcU2hN76UyA