Will using small weights to train Biceps be uneffective?!

Question: I use 4.5kg (10lbs) weights to train my Biceps. I have been doing this for a quite a while but my results have so far been that I have bigger triceps and there is not much definiton of the biceps.

Should I upgrade the size of my weights? and if so, to what?
Thanks

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Answers: I use 4.5kg (10lbs) weights to train my Biceps. I have been doing this for a quite a while but my results have so far been that I have bigger triceps and there is not much definiton of the biceps.

Should I upgrade the size of my weights? and if so, to what?
Thanks

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to increace muscle size the key is progression.

if you can comfortably lift your 10 pound dumbells then you aren't going to have any gains, biceps are small muscles anyway - the easies way to increace bicep size is (it sounds weird) to train your BIG muscles - like your legs, back and chest, this will induce muscle growth all over.

but in answer to your question

yes, heavier into the 8-10 rep to failure region

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