Whey Isolate Protein 900g by XBrain – Pistachio

£40.00 or £31.99 / month

Support your muscle gains with Whey Isolate Protein from XBrain in incredibly tasty pistachio flavour. Grow, recover and support your body with XBrain’s high quality Whey Isolate Protein powder.

In stock

Save 20 % when signing up for a monthly subscription.
30 money back guarantee 30 money back guarantee
1-3 day UK delivery 1-3 day UK delivery
Over 45,000 happy customers Over 45,000 happy customers


Why Choose Whey Isolate Protein by XBrain?

Your body deserves the very best, especially when you’re working hard to build muscle and going the extra mile at the gym – that’s why XBrain’s Whey Protein Isolate is totally natural, gluten-free, non-GMO and contains zero fillers or additives. 

Unlike the vast majority of other whey isolate formulas, XBRAIN®WheyIsolate does not incorporate any artificial sweeteners or ingredients that reduce the overall quality of the protein or have potentially harmful effects making it a formula that you can trust.

With over 20.7g of high quality protein in each serving, Whey Isolate Protein from XBrain delivers everything you need to build muscle and aid recovery without the inclusion of taurine or glycine, making it the stand-out protein mix on the market.

Manufactured carefully with cold processing and cross-flow microfiltration technology, Whey Isolate Protein by XBrain guarantees high grade protein enriched with nutrients and amino acids to boost bodybuilding, support recovery and reduce muscle breakdown.

XBrain only uses grass-fed cows when sourcing their whey protein to ensure the final product is of the highest standards and provides more health benefits than inferior whey protein formulas derived from non-organic ingredients. This is in order to support you with the very best supplement for your personal muscle growth goals.


There are numerous benefits to choosing high quality whey isolate protein from grass-fed cows:

  • Antibiotics
    Grass-fed cows not only have space to roam and graze their natural food source – they also don’t require antibiotics unlike feedlot cows bred in unhealthy living conditions. Whey isolate proteins from feedlot cows can contain resistant bacteria from the antibiotics which create an inferior protein and pose a potential threat to human health.
  • Growth Hormones
    Similarly, feedlot cows are treated with growth hormones to create a faster and large yield, however it makes them susceptible to disease. XBrain sources its whey protein from hormone-free, grass-fed cows to ensure the highest quality.
  • Minerals
    Unlike feedlot cows, grass-fed cows produce mineral-rich protein containing calcium, phosphorus, potassium and magnesium thus creating a healthier whey.
  • Amino Acids
    Grass-fed cows produce a much higher quality milk than feedlot cows that’s rich in branched-chain amino acids which are vital for protein synthesis making them essential for muscle gains.
  • Conjugated Linoleic Acid (CLA)
    CLA can be as much as five times more abundant in grass-fed cows and research suggests that CLA is a combatant against cancer, high blood pressure, cholesterol, inflammation and cardiovascular disease.
  • GMOs
    Grass-fed cows are reared on organic feed which eliminates the chance of their milk being tainted by toxins from pesticides giving you the purests, healthiest protein formula.
  • Toxic Metals
    High heat production methods can increase the potentially poisonous heavy metal content in the protein. XBrain only uses responsible production technologies to create the highest quality whey isolate.

Thanks to these benefits, Whey Protein Isolate by XBrain is a protein mix that will support you throughout your muscle building and is one that you can really trust. The mixture has a smooth texture and the pistachio flavour is a delicious option for anyone looking to push their training to the next level.


Supports muscle growth
Supports muscle growth
100% natural & gluten free
100% natural & gluten free
Aids post-workout recovery
Aids post-workout recovery


  • UK based orders deliver 1-3 days after dispatch
  • Orders for outside of the UK deliver 5-7 days after dispatch

You may also like…