OPTML Running Performance Supplement, Boosts Energy, Increased Endurance, Enhanced Focus, Reduced Stress, Run Longer and Faster (120 Capsules)

I've tried many different running "endurance enhancers", and OPTMLs Running Performance supplement has been by far the best. It definitely increases my endurance for long distant running, and holds it's endurance boost afterward for extra cross-fit workouts. I am very impressed with this products ability to keep me going throughout my runs, mile after mile. Definitely recommended and a great bang-for-your-buck.

Tried this product for the first time this last weekend, and although it was cold out, this seemed to help with the endurance, and duration of time. I will be using again this weekend for a 5k!

I had some time of reaction when I took them. My runs were bad after taking this

Took OPTML 30 minutes before my lunch run (6 miles) and had great sustained energy throughout the run, no crash. Energy lasted the rest of the day and didn’t get my usual mid afternoon energy slump. Will definitely buy again.

Helps give me a boost on my long run. Great value, great workout booster

Good product for runners

Great product!! I use it for when I run and it is amazing. The taste could be a little better but it’s not to bad where you still can’t enjoy it

Great! if you suffer from fatigue and need a pick me up