What are the Main Benefits of this product?

XL Prep is a capsulated product designed to be taken before exercise to help increase focus, performance and recovery. In contains 5 ingreidents, each shown to increase performance in a different way.

Firstly Beta Alanine (to view XL Beta click here) the intramuscular buffer of H+ ions (which cause the fatigue related drop in performance). Thus shown to help improve exercise performance by reducing the time to fatigue and increasing the ability to maintain high intensity exercise for longer [1]

Secondly Co Enzyme Q10, which is been well known for its antioxidant effects, which help reduce the markers of stress after exercise. Recently new findings suggest another ergoenic effect of CoQ10 during exerise. One study showed that CoQ10 supplementation reduced oxidative stress levels and increased time to exhaustion thus increasing performance [2]

Thirdly, Caffeine, the well known neuromodular and performance enhancing supplement. Caffeine has been shown to delay the onset of fatigue [3] and increase exercise performance [4]

Our fourth ingredient is the adapotgenic herb, Rhodiola Rosea. Rhodiola Rosea has been shown to increase physical working capacity by increasing ATP content in skeletal muscle [5] thus it has also been shown to improve endurance exercise capacity in young healthy volunteers [6]

Our Final ingredient is L-Carnitine L-Tartrate (LCLT), LCLT has been shown to increase aerobic performance [7] aswell as improving anerobic performance [8] and possibly more importantly by helping to upregulate androgen receptors thus increasing our androgenic profile [9]

What does the product contain?

There are 150 capsules in each tub, each capsule contains:

Beta Alanine 1500mg

CoQ10            200mg

L-Carnitine L-Tartrate 1000mg

Rhodiola Rosea 225mg

Caffeine 200mg

How many servings are there per tub?

If users are not taking XL Beta or XL Caff we suggest 6 capsules (1 serving) to be taken before a workout and if you workout in the evening, take 6 capsules in the morning aswell.

How long with the tub last?

If you work out 3 times a week and are at full dosing this probably will last around 2.5 weeks. However if users are using XL caff and XL beta, there is only need for 1 serving (6 capsules) to be taken before a workout, thus if a user works out 3 times a week the product will last 8 weeks.

When should I take it?

This should be taken 30-45mins before exercise. A second dose can be taken in the morning if you workout in the evening (this does not need to be taken if users use XL Beta and XL caff)

And what with?

As a capsulated product this can be washed down with any beverage!

What other Excel Products work well with this?

A cost effective method of supplementing is to combine with XL Beta and XL Caff meaning only 1 serving is needed before a workout and no other time of the day. This product also works well with XL Synthesis taken post workout.

Is this product safe?

This product is entirely safe with no shown adverse health effects. Due to the large caffeine content we advice users to use a smaller dose to start off with to assess tolerance. Always read the label before use.

Can I read a full write up?

 A full write up can be seen here

References

1. Hill, C.A., Harris, R.C., Kim, H.J., Harris, B.D., Sale, C., Boobis, L.H., Kim, C.K., & Wise, J.A. (2007). Influence of beta-alanine supplementation on skeletal muscle carnosine concentrations and high intensity cycling capacity. Amino Acids, 2, 225-33.

2. Cooke, M., Iosia, M., Buford, T., Shelmadine, B., Hudson, G., Kerksick, C, Rasmussen, C., Greenwod, M., Leutholtz, B., Willoughby, D., & Kreider, R. (2008) Effects of acute and 14-day coenzyme q10 supplementation on exercise performance in both trained and untrained individuals. J Int Soc Sports Nutr, 4, 5-8.

3  Davis, J.M., Zhao, Z., Stock, H.S., Mehl, K.A., Buggy, J., & Hand, G. (2003). Central nervous system effects of caffeine and adenosine on fatigue. Am J Physiol Regual Integr Comp Physiol, 284, 399-404.

4 Jenkins, N.T., Trilk, J.L., Singhal, A., O’Connor, P.J., & Cureton, K.J. (2008). Ergogenic effects of low dose caffeine on cycling performance. Int J Sport Nutr Exerc Metab, 3, 328-42.

5. Abidov, M., Crendal, F., Grachev, S., Seifulla, R., & Ziegenfuss, T. (2003). Effect of extracts from Rhodiola rosea and Rhodiola crenulata roots on ATP content in mitochondria of skeletal muscles. Bull Exp Biol Med, 6, 585-7

6. De Bock, K., Eijinde, B.O., Ramaekers, M., & Hespel, P. (2004). Acute Rhodiola rosea intake can improve endurance exercise performance. Int J Sport Nutr Exerc Metab, 3, 298-307

7. Abramowicz, W.N., & Galloway, S.D. (2005). Effects of acute verus chronic L-carnitine L-tartrate supplementation on metabolic responses to steady state exercise in males and females. Int J Sport Nutr Exerc Metab, 4, 386-400.

8. Kraemer, W.J., Volek, J.S., French, D.N., Rubin, M.R., Sharman, M.J., Gómez, A.L., Ratamess, N.A., Newton, R.U., Jemiolo, B., Craig, B.W., & Häkkinen, K. (2003). The effects of L-carnitine L-tartrate supplementation on hormonal responses to resistance exercise and recovery. J Strength Cond Res, 3, 455-62.

9. Kraemer, W.J., Spiering, B.A., Volek, J.S., Ratamess, N.A., Sharman, M.J., Rubin, M.R., French, D.N., Silvestre, R., Hatfield, D.L., Van Heest, J.L., Vingren, J.L., Judelson, D.A., Deschenes, M.R., & Maresh, C.M. (2006) Androgenic responses to resistance exercise: effects of feeding and L-carnitine. Med Sci Sports Exerc, 7, 1288-96.