The main ingredients in Proxeed are L-carnitine and Acetyl L-carnitine (if you google Proxeed ingredients you can find them

)I have DH on 2 grams of L-carnitine and 1 gram of Acetyl L-carnitine a day, which is actually more than what is in the Proxeed but cheaper. It's a lot cheaper to buy them separately from Vitacost.com or Amazon than to pay for Proxeed (It's a $100/month). I know one lady who pops in here occasionally had her DH on the L-carnitine and his counts and motility improved quite a bit and she did get pregnant after about 6 months or so on it. Hope this helps