I am having difficulty in making my biceps grow and respond. I haven’t even gained ½ inch in six months.

What can I do to make my biceps grow Vince?

Presently I do Barbell curls, dumbell curls and preacher curls, three sets each of 10 reps.

Try doing 21's for increased arm size. Do seven partial barbell curls, moving the bar from the thighs to only half way up. Next do seven partial reps from the top and lower half way down. Next do seven full reps.

Your biceps should be pumped to the max and on fire!

During performance of this exercise, keep intermuscular contractions at a high level.

Try also to eat more protein. I recommend 50 grams of protein six times a day while on this biceps program. Also try taking five free-form amino acid tablets and five desiccated liver tabs every three hours to keep yourself in positive nitrogen balance and the tissues saturated with protein.