Doing more biceps workouts each week might help build stronger, thicker muscles—even if the differences aren’t crystal clear in the data, it seems like more sets could mean better results.

What we've found so far suggests that higher weekly volume in biceps training may lead to greater muscle growth and strength gains in trained men. The evidence we’ve reviewed leans toward the idea that doing more sets per week could result in stronger, thicker muscles, even if the differences aren’t always clear-cut in the data [1]. Our analysis of the available research shows that all 63.0 assertions we examined support the idea that increased training volume benefits biceps development [1]. No studies or claims in our review contradicted this pattern. While the exact size of the benefit isn’t fully clear, the consistent direction of the evidence suggests a positive link between doing more work over the week and better outcomes in muscle size and strength. We want to be clear: we’re not saying more volume definitely leads to more growth. We’re saying that what we’ve found so far points in that direction. There may be limits or individual differences we haven’t fully accounted for, and future evidence could refine or change this picture. Also, we don’t yet know how much volume is enough—or when too much might become counterproductive. The current data doesn’t give us those details. But based on what we’ve reviewed so far, training the biceps with more sets per week appears to be a reasonable approach for those looking to maximize growth and strength. Practical takeaway: If you're looking to build bigger, stronger biceps, doing more sets over the week might help—even if the gains from extra volume aren’t always dramatic.