Xtend Original

Vitamin D2. Has been shown to be less effective at raising testosterone levels, more toxic and less potent than Vitamin D3, so it seems like they’ve cut costs here – so much for their premium manufacturing.

L – Leucine. This is considered the ‘main’ BCAA (Branched Chain Amino Acids) as it’s where most of the benefits of supplementing with BCAA’s is from.

L – Glutamine. Glutamine is a naturally occurring amino acids in a dietary protein and can be found in meats and eggs.

L – Isoleucine. This is another BCAA (Branched Chain Amino Acid), but it’s not as potent as L – Leucine at inducing muscle protein synthesis (encouraging muscle growth).

L – Valine. This is the last of the three BCAA’s, but there is no significant benefit to adding this in a product, as Leucine and Isoleucine can replicate all of the advantages of L-Valine.

Citrulline Malate. Citrulline is by far the best ingredient in Xtend Perform, as it’s turned into L-Arginine in the kidneys after supplementation – this benefit you by increasing your nitric oxide levels, which leads to your blood vessels dilating, meaning you’ll experience great muscle pumps during your workout.

PEAKO2 Performance Blend. A proprietary blend is a mixture of ingredients that only shows the total amount of the whole blend, not each individual nutrient contained.

Electrolyte Blend. This proprietary blend doesn’t have any great ingredients inside. Although it contains electrolytes (Potassium and Sodium), this whole blend could have been replaced by 300mg of Coconut Water Powder to give you the same benefits but in a lower quantity.