4.5kg Vanilla Micro-filtered Whey Protein Isolate (WPI)


Currently unavailable. We don't know when or if this item will be back in stock. We can recommend this similar product: 5kg Vanilla Australian Whey Protein (WPC)      Our biggest tub...


Currently unavailable.

We don't know when or if this item will be back in stock.

We can recommend this similar product:

5kg Vanilla Australian Whey Protein (WPC) 



Our biggest tub size- 150 servings- only for serious consumers of protein who want 100% pure, fast absorbing Micro-filtered Whey Protein Isolate (WPI) to be consumed before or after your workout. Our natural Vanilla is light and not overly sweet. Easily mix with water, milk or almond milk, or add to your smoothies.

Mirrabooka micro-filtered 100% Whey Protein Isolate is the highest in protein (over 92% natural), fastest digesting, and lowest in fat and carbs of all protein powders.

Mirrabooka Grass Fed Isolate is the best quality micro filtered whey protein from grass fed Irish cows, supported by the natural protease digestive enzymes bromelain and papain- to maximise protein absorption in your digestive system.

Grass Fed Isolate is essential for bodybuilders, athletes and sports-active people, persons requiring additional protein and energy, and those on a low carbohydrate weight management plan. 


Net Weight: 4.5kg Serving size: 30g Servings per pack: 150

Natural Per 30g Serving Per 100g
Energy  458kj 1525kj
Protein  27.3g 91.0g
Total Fat  0.3g 1.0g
- Saturated  <0.3g <1.0g
Carbohydrates  0.3g 1.0g
- Lactose  <0.3g <1.0g
Sodium  45mg 150mg
Gluten  Nil detected

Note: The Nutrition Information is based on Natural (Unflavoured) WHEY PROTEIN ISOLATE; values for Naturally Flavoured versions vary by 4%.


Vanilla: Grass fed microfiltered whey protein isolate, natural vanilla flavour, natural sweetener (stevia extract).

Blended and packed in Australia from imported ingredients.


Whey protein isolate (milk) (soy lecithin)



Fast Shipping


We offer free standard shipping on all orders. Express Post is available for all orders up to 4.5kg for $10.

Orders finalised (payment approved) before 1pm will be dispatched on the same day. Orders finalised after 1pm will be dispatched the following business day.

Orders are sent by Australia Post Parcel Post & Express Post.

Yes, we ship to parcel lockers and P.O. boxes.

*Please note: Shipping from Torquay, Victoria is outside Australia Post Guaranteed Next Day Network. Express Post may take 2 business days.

All orders receive tracking via email/text and require a signature upon delivery. Authority can be given to leave the parcel in a safe place.


VIC 1-4
NSW 2-6
QLD 3-7
NT 4-7
WA 5-7

Delivery time estimates provided by Australia Post. The lower number is for CBD delivery and Express Post, the higher number is for the furthest regional delivery in your state. Note: We ship from outside Australia Post next day network.

Free Returns

14 days free returns. It's that easy

Whatever your reason.

If you’re looking to return or exchange your order for whatever reason, we're here to help! We offer free returns or exchanges within 14 days of receiving your order. You can return your product for store credit, a different product, or a refund to the original payment method.

  • Returned items must be unopened and be returned in resaleable condition
  • Returned items must have no visible signs of damage or tampering

It's this easy.

To initiate a return or exchange, please complete the following easy steps:

  • Email us at customercare @
  • Tell us the products you wish to return or exchange from your order
  • We will email your prepaid return shipping label

Send it back.

Once you receive your label:

  • Print off your return shipping label and stick it on the original packaging or similar
  • Drop it off at an Australia Post Office, or a red post box and you're done!
  • For more information please also have a look at our FAQ page.