If you’re serious about building lean muscle, maximising recovery, or simply getting the cleanest protein boost possible, WPI 90 by True Protein is built to impress. This ultra-pure whey protein isolate is one of the cleanest protein powders available on the Australian market, boasting 90% protein content per serve, minimal carbohydrates and fats, and rapid absorption.

It’s designed for those who want fast-acting protein post-workout, low lactose levels for easy digestion, and no unnecessary fillers or artificial nasties. Whether you’re chasing lean muscle gains or simply maintaining daily protein intake, WPI 90 by True Protein delivers a no-nonsense formula with quality you can taste.
Flavours, price & pack sizes
True Protein WPI 90 is available in an impressive range of natural flavours, each crafted with real ingredients and no artificial sweeteners.
Available flavours include:
- Rich Chocolate
- French Vanilla
- Banana & Honey
- Natural
- Cookies & Cream
- Raw Coconut
- Choc Peanut Butter
- Mocha
- Salted Caramel
- Strawberry & Cream
- Salted Vanilla
- Toffee Caramel
- Apple Crumble
- Choc Mint
All flavours are naturally sweetened using organic steviol glycosides (stevia) and free from artificial additives, a big win for those who prefer clean nutrition.
Pack sizes and pricing of WPI 90 by True Protein
- 360g bag: comes in at $45 on the True Protein website
- 1kg bag: priced at $89 on the True Protein website
Given the purity of the product and the local manufacturing standards, WPI 90 by True Protein is positioned as a premium protein supplement but offers excellent value for its quality and amino acid profile.
Ingredients & benefits
Each serving of WPI 90 by True Protein provides a clean, high-quality protein source derived from New Zealand grass-fed whey, ensuring optimal nutrition and sustainability. Here’s what makes its formula stand out.
Key ingredients and what they do:
- Whey Protein Isolate (WPI 90): The star of the show, providing 27–28g of protein per serve with minimal lactose, fat, and carbs. It’s micro-filtered for purity and fast digestion, making it perfect post-workout or between meals.
- Natural Flavourings & Cocoa (in flavoured variants): Gives a natural taste profile without synthetic additives.
- Stevia Leaf Extract: A natural plant-based sweetener that keeps the product free of artificial sweeteners and excess sugar.
This minimalist ingredient profile ensures True Protein WPI 90 is both highly digestible and bioavailable, offering a quick protein hit that supports lean muscle repair and maintenance.
Nutritional panel
For those who like to know exactly what’s in their shake, here’s a detailed nutritional and amino acid breakdown for the Rich Chocolate flavour of WPI 90 by True Protein.
| Nutrient – Rich Chocolate | Per 30g Serve | Per 100g |
|---|---|---|
| Energy | 447kJ (107Cal) | 1490kJ (356Cal) |
| Protein | 24g | 81g |
| Fat, total | 0.5g | 1.7g |
| – Saturated | 0.5g | 1.5g |
| Carbohydrates | 1.5g | 5.1g |
| – Sugars | 0.4g | 1.2g |
| Dietary fibre | 1.6g | 5.3g |
| Sodium | 37mg | 123mg |
| Calcium | 118mg | 395mg |
| Lactose | 0.3g | 1.1g |
| Gluten | Nil detected | Nil detected |
Amino acid profile
| Amino Acids – Rich Chocolate | Per 30g Serve | Per 100g |
|---|---|---|
| Essential Amino Acids | ||
| Isoleucine | 1.7g | 5.8g |
| Leucine | 2.7g | 9.0g |
| Lysine | 2.5g | 8.2g |
| Methionine | 0.6g | 1.9g |
| Phenylalanine | 0.8g | 2.6g |
| Threonine | 1.8g | 5.9g |
| Tryptophan | 0.5g | 1.5g |
| Valine | 1.5g | 5.1g |
| Non-Essential Amino Acids | ||
| Histidine | 0.5g | 1.5g |
| Alanine | 1.3g | 4.5g |
| Arginine | 0.6g | 1.9g |
| Aspartic Acid | 2.7g | 9.0g |
| Cysteine | 0.7g | 2.3g |
| Glutamic Acid | 4.6g | 15.2g |
| Glycine | 0.5g | 1.5g |
| Proline | 1.5g | 5.1g |
| Serine | 1.2g | 4.1g |
| Tyrosine | 0.8g | 2.7g |
Ingredients Whey protein isolate (90%)(Milk), Cocoa powder, Organic inulin, Natural flavours, Emulsifier (Sunflower lecithin), Vegetable gum, Natural sweetener (Organic steviol glycosides).
Allergens
Contains milk. Produced in a facility that handles nuts.
Who it’s for
WPI 90 is made for athletes, fitness enthusiasts, and everyday lifters who value quality, digestibility, and purity in their protein supplements.
You’ll benefit from WPI 90 if you:
- Want a high-protein, low-calorie supplement to support lean muscle growth.
- Prefer fast absorption after training to boost recovery.
- Have lactose sensitivity or prefer a lighter protein option.
- Value natural ingredients without fillers or artificial additives.
- Need a clean protein source to mix easily into protein smoothies, oats, or recipes.
Whether you’re cutting, maintaining, or just improving daily protein intake, WPI 90 fits seamlessly into your nutrition plan.
Stacking suggestions
WPI 90 works beautifully on its own, but combining it with other products can help enhance results depending on your training goal.
Here’s how to make the most of it:
- With Creatine Monohydrate: Ideal for boosting muscle power and recovery, a classic post-workout combo.
- With Glutamine: Supports gut repair, making it great for overall wellness.
- With Pre-Workout: For those who want energy and focus before training.
- With Oats or a Banana: A quick meal replacement or breakfast option that provides carbs and micronutrients.
By stacking strategically, you can turn a simple protein shake into a complete performance shake or recovery blend.
Frequently asked questions
Is WPI 90 suitable for people with lactose intolerance?
Yes. WPI 90 is extremely low in lactose due to its advanced filtration process, making it suitable for most people with mild lactose sensitivities.
Can WPI 90 by True Protein be used for weight loss?
Absolutely. Its low calorie and high protein profile supports fat loss while preserving lean muscle, making it great for calorie-controlled diets.
How does WPI 90 compare to WPC 80?
WPI 90 digests faster, contains less lactose and fat, and is slightly more expensive, making it the better option for post-workout use.
Can I use WPI 90 in cooking or baking?
Yes, it mixes smoothly and can be added to pancakes, oats, or protein balls without affecting texture or taste.
Suggested use
To get the best results from WPI 90 by True Protein, mix 1 heaped scoop (30g) with 200–250ml of cold water or milk. Shake well and consume immediately after training for optimal recovery.
You can also use it between meals, in your protein smoothies, or as a high-protein snack during the day. For baking, simply add a scoop to recipes for an extra protein hit.
Our verdict on WPI 90 by True Protein
True Protein WPI 90 delivers exactly what it promises, a clean, premium, and ultra-pure protein source for those who won’t settle for less. The flavour range is subtle and natural, it mixes beautifully, and it’s easy on digestion.
If you want a whey isolate that supports muscle repair, recovery, and overall performance without fillers or sugar, WPI 90 by True Protein is hard to beat. The local Australian manufacturing and transparent formula make it a standout choice among fitness-conscious consumers.