Looking for a lean, high-performance protein? Optimum Nutrition Performance Whey Isolate packs 25g of protein per serve with almost no carbs, fats, or sugars. It’s the ultimate post-workout recovery fuel for athletes who demand serious results. Plus, it’s Informed-Choice certified, so it’s tested for banned substances and safe for competitive athletes.

Why Choose Performance Isolate?

• 25g protein per serve – premium whey isolate.

• Low carb, low fat, low sugar – perfect for lean goals.

• Fast-digesting – supports rapid recovery.

• Smooth mix – no clumps, great texture.

• Informed-Choice certified – tested for banned substances, trusted by athletes.

• From Optimum Nutrition – the world’s #1 sports nutrition brand.

How to Use

1. Mix 1 scoop of Performance Isolate with 200–300ml of cold water or milk.

2. Shake or blend until smooth.

3. Best taken post-workout for rapid recovery.

Pro tip: Stack with creatine for maximum muscle growth and performance.

Who’s It For?

• Athletes chasing lean muscle and recovery.

• People cutting who need clean protein support.

• Those with sensitive digestion needing whey isolate.

• Drug-tested athletes requiring certified supplements.

FAQ

Is Performance Isolate safe for athletes?
Yes — it is Informed-Choice certified, tested for banned substances and manufactured in a registered facility.

How is this different from Gold Standard Isolate?
Performance Isolate delivers a higher protein hit per serve and is designed for serious performance athletes.

When should I take it?
Best post-workout, but also works as a lean protein shake anytime.

Why Buy from Sprint Fit?

• 100% authentic Optimum Nutrition supplements.

• Free NZ shipping on orders $60+.

• Same-day dispatch nationwide.

• Trusted by Kiwi athletes and fitness enthusiasts.

Optimum Nutrition Performance Isolate – ultra-clean protein for serious performance.

Container Size: 2.27KG (5lb)
Serving Size: 1 Scoop (29.4g)
Servings Per Container: Approx 70

Directions:
One scoop of Performance Isolate mixes up effortlessly in as little as 180mL- 240mL of water, milk, or your favourite beverage.
This exceptionally pure whey formula is ready to go to work before and after training, in between meals, or any other time that you need to maximise your muscle recovery.

Please Note: Nutritional Information is to be used as a guide only, actual values may differ between flavours and sizes and when formulations are modified or updated by the manufacturer. 
Contact us if you have any questions regarding this products ingredients.

We use NZ Couriers as our courier service using an international service. NZ Couriers provides our customers with fast and reliable delivery to destinations across their comprehensive AUS network. 

Standard orders over $60.00 receive free* shipping nationwide, excluding WA, NT, TAS.
Standard delivery starts from $12.90 per shipment for orders under $60.00 
Signature Required $14.90 per shipment. Please ensure you do not have the 'authority to leave' authorization set up at your address with NZ Couriers should you wish to use this service.
If you don't want NZ Couriers to leave your parcel unattended, please select the signature required option. This is especially recommended for high value orders. Neither NZ Couriers nor Sprint Fit are liable for parcels that are stolen, damaged or lost after an item has been delivered.

Final pick up each day is at 3.45pm Monday to Friday. 

*Excludes public holidays and weekends as courier is closed

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