- $/kg protein
- $67.79
- Cheapest price
- $237.96
- Size
- 4.5kg
- Type
- BLEND
- Protein density
- 78%
- Protein / serve
- 31g
- Leucine (est.)
- ~3.1g/serve· clears 2.5g MPS threshold
- Retailers in stock
- ASN · $237.96
Product comparison
International Protein International Protein Superior Whey vs MyProtein AU Impact Lean Whey
Today’s verdict: MyProtein AU Impact Lean Whey is 11% cheaper per kg of protein. Updated daily.
- $/kg protein
- $60.62
- Cheapest price
- $38.19
- Size
- 1kg
- Type
- WPC
- Protein density
- 63%
- Protein / serve
- 38g
- Leucine (est.)
- ~3.8g/serve· clears 2.5g MPS threshold
- Retailers in stock
- MyProtein AU · $38.19
FAQ
Product comparison, answered.
Which is cheaper today, International Protein International Protein Superior Whey or MyProtein AU Impact Lean Whey?
MyProtein AU Impact Lean Whey is cheaper today at $60.62/kg of protein — 11% less than the other option. Prices are scraped daily across every Australian retailer we track, so the verdict can flip overnight.
What does $/kg of protein mean?
It’s the price per kilogram of actual protein, not powder. We calculate it as: price ÷ (size_in_kg × protein_percentage). This controls for protein density — a $35 WPC at 75% protein is actually worse value than a $40 WPI at 90%, and $/kg of protein is the only number that captures that.
How is leucine calculated?
Leucine per serve is estimated from the protein subtype using established industry ratios: WPI ~12% of protein is leucine, hydrolysed ~13%, WPC ~10%, blend ~10%. So a 25g WPI serve delivers ~3g leucine. The 2.5g threshold is what research says you need per meal to maximise muscle protein synthesis.