L Arginine Supplement for Muscle Growth, Endurance, and Energy - Support Nitric Oxide Production and Cardio Health - Extra Strength N.O. Booster with AAKG, L-Citrulline Malate, Beta Alanine

If you aren't going for a major workout, leave this stuff alone. i thought I was having a heart attack. My face was on fire and my insides were shaky. It really scared me.

I take it every day. I feel it when I don't.

I love bike riding. I usually average about 20 miles three times per week. After recovering from an accident and subsequent surgery, I went for my first ride in many months. My muscles were so sore and my energy was low and I barely rode 6 miles. Then I got my l-argenine and decided to try it. My very next ride was a thousand times better. I easily (well, fairly easily) rode 21 miles. My legs weren't nearly as sore and I had so much energy. I had never tried any pre workout supplements before because I don't consider myself an "athlete". I ride for fun.....and for my health. But this product is amazing. I can't believe the difference it made in my riding. I love it.