The Real Reason Your Biceps Haven't Changed
You've been doing curls for months. Same weight, same reps, same mirror check afterward. Nothing's different.
Here's the problem: "toning" isn't one goal. It's training, and it's not the same fix for everyone. Some of you are already lean and just need the muscle built. Some of you need the muscle built and the fat off. Different starting point, different plan. But the training piece is where almost everyone leaves progress on the table, so let's start there.
Build the muscle: how you curl matters more than how much you curl.
Most people's curl form is quietly wasting their time. They swing the weight, use momentum out of the bottom, and never actually load the muscle through a full stretch and a full squeeze.
Charles Glass built his reputation training some of the most well-developed physiques in bodybuilding around one idea: the muscle has to feel the work, every rep. That means slowing down on the way up, controlling the weight on the way down, and pausing at the top where the bicep is fully contracted, instead of just moving the bar from point A to point B as fast as possible. Try this on your next set of curls: a full 2-count squeeze at the top before you lower. If you've never felt your bicep genuinely burn doing a curl, you've been moving weight, not training the muscle.
Charles Poliquin built his reputation on the other half: structure. Random sets of curls whenever you remember don't build much of anything. Poliquin's approach leans on controlled tempo, think a 3-4 second lowering phase on every rep, and planned progression, meaning you're tracking what you lifted last week and trying to beat it in either weight or reps, not guessing. Two or three focused arm sessions a week, done with that kind of intent, will outperform five sloppy ones.
Put those together and a real bicep session looks different from what most people do at the gym: fewer total sets, slower tempo, a real pause at peak contraction, and a written log of what you did last time. That's the difference between arms that have looked the same for a year and arms that are visibly changing every six weeks.
3 free bicep workouts, built on those two ideas.
Pick the one that matches how you train, or rotate through all three over a few weeks. Full credit to Glass and Poliquin, this is how their principles translate into an actual session.
Option 1: The Peak Contraction Session (Glass-style)
Preacher Curl: 3 sets x 10-12, 2-count squeeze at the top, 3-count lower
Concentration Curl: 3 sets x 12, full stretch to full contraction, slow throughout
Cable Curl, continuous tension: 2 sets x 15, no rest at the bottom
Finisher: peak-contraction hold, 20-30 seconds x 2
Option 2: The Tempo Progression Session (Poliquin-style)
Standing Barbell Curl: 4 sets x 6-8, tempo 4-0-1-0 (4 seconds down, 1 second up)
Incline Dumbbell Curl: 3 sets x 8, tempo 3-0-1-1
Hammer Curl: 3 sets x 10, tempo 2-0-1-0
Log every set. Goal: add a rep or a small amount of weight every 2 weeks, not every session.
Option 3: The Hybrid Session
Superset: Barbell Curl (4 sets x 8, controlled tempo) directly into Cable Curl to a peak-contraction hold (4 sets x 12)
Finisher: Dumbbell Curl to failure, drop the weight, continue to failure, twice
Reveal the muscle: the fat covering it has to come down (for some of you, not all).
I have to be straight with you here: you cannot spot-reduce. There's no curl variation that melts fat specifically off your arms. Your body decides where fat comes off, and it's rarely where you want first.
If you're already lean and your arms just look flat, this part matters less. Your training is doing almost all the work. If you're carrying extra fat overall, this is the piece that unlocks what the training already built, and it comes down to eating enough protein to support the muscle and running a moderate calorie deficit so your body composition shifts.
My go-to recommendation if you need an easy way to close the protein gap: Level-1. It's what I point most people toward first, before we get into the rest of the lineup below.
Protein options, if you need to close the gap:
⭐ Level-1 — my top recommendation
Which camp are you in?
That's the honest answer: I can't tell you from a blog post. Some may need six weeks of focused arm training and some muscle balancing work. Some of you need that same training plus a real look at your nutrition. Guessing wrong wastes months. That's exactly what we sort out one-on-one, not with a generic plan.
— Mike
