WPI/WPC Protein

FILTER

Reviewed by Louisa Giampaolo, Dietitian, on 9 June 2026

WPI & WPC Whey Protein

Shop WPI and WPC whey protein at Elite Supps. This collection brings together whey made from isolate (WPI), concentrate (WPC) and blends of the two - the most popular, effective and great-value forms of whey for building muscle, recovering and topping up your daily protein. Every member of our team is a certified nutritionist, so you can choose with confidence.

WPI vs WPC: The Quick Version

Both are complete, fast-digesting whey proteins that build muscle well (1) - the difference is how lean and how affordable:

  • Whey isolate (WPI) - around 90% protein, very low in fat, carbs and lactose. The leanest option, best for cutting or lactose sensitivity.
  • Whey concentrate (WPC) - around 70 to 80% protein, creamier and better value. The everyday all-rounder.
  • Whey blends - a mix of both, for the leanness of isolate and the value and taste of concentrate in one tub.

For muscle-building, all three work well when your total protein is on point - choose isolate for the leanest profile, concentrate for value, or a blend for the best of both.

How to Take It

Mix one scoop with water or milk, around training or any time you need to top up your protein. Aim for around 1.6 to 2.2g of total protein per kilo of body weight a day from food and shakes combined (2); a serve usually gives 20 to 25g.

Why Buy from Elite Supps

  • Every member of our team, online and in all our stores, is a certified nutritionist, so expert advice is always free.
  • One of Australia's biggest ranges of whey - isolate, concentrate, hydrolysed and blends.
  • More than 140 stores nationwide, plus fast online delivery and same-day dispatch.
  • Family-owned, with competitive prices and regular deals.
  • Flat-rate shipping Australia-wide, and free delivery on orders over $150.
  • A 30-day money-back guarantee on your order.

Explore More

Compare isolate, concentrate, hydrolysed whey and blends, see the full whey protein range, or our top 10 protein powders. Our certified nutritionists can help. References for the research cited above are listed below.

FAQ

What is the difference between WPI and WPC?

WPI (isolate) is filtered further to around 90% protein with very low fat, carbs and lactose - the leanest. WPC (concentrate) is around 70 to 80% protein, creamier and better value. Both build muscle well.

Should I choose WPI or WPC?

Choose WPI if you are cutting, watching calories or lactose sensitive; choose WPC for everyday value; or pick a blend of both for the best of each.

Is whey protein good for building muscle?

Yes - whey is a fast-digesting complete protein with all the essential amino acids, which supports muscle protein synthesis and recovery alongside resistance training.

References

1. Hoffman, J. R., & Falvo, M. J. (2004). Protein - Which is Best? Journal of Sports Science & Medicine, 3(3), 118-130. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3905294/

2. Jager, R., et al (2017). International Society of Sports Nutrition Position Stand: protein and exercise. Journal of the International Society of Sports Nutrition, 14, 20. https://doi.org/10.1186/s12970-017-0177-8