Backorder Availability & Estimated Arrival Dates!
The following items are in high demand and are currently out of stock but available for backorder:
- Choc Salted Caramel (1.25kg and 2kg) – Mid June
- Triple Choc Fudge (1.25kg and 2kg) – TBD
SALE
Lean Muscle WPI Stack
No Fillers. No Guesswork. Just Gains.
Everything you need to build lean muscle — nothing you don’t.
You train hard. The results should show.
The Lean Muscle Stack is your all-in-one upgrade:
- Fast-absorbing, great-tasting whey protein
- BCAAs for recovery and endurance
- Pure glutamine for reduced soreness and better bounce-back
No fillers. No sugar bombs. No mystery blends. Just premium Australian-made supplements that do what they say they do.
This stack is designed for lifters who care about performance — and what they put in their body.
Overview
Lean Muscle WPI Stack
Build lean muscle. Recover faster. Stay strong.
Fuel growth, improve endurance, and bounce back quicker — with premium fast-absorbing WPI, BCAAs, and glutamine. This high-performance trio helps you push harder and recover smarter.
No fillers. No fluff. Just results.
Re-Fuel BCAA
Glutamine
Hydro ISO
Why do you need Lean Muscle WPI Stack?
You’re putting in the work — but the lean gains aren’t showing. Recovery is dragging. Energy crashes. And your current stack? Either bloating you out or tastes like regret.
Sound familiar?
The Next Gen Lean Muscle WPI Stack is a clean, performance-driven system designed to:
- Build lean muscle – with ultra-absorbable Hydro ISO WPI for real muscle fuel
- Maintain strength and size – whether you’re cutting or lifting heavy
- Speed up recovery – with Glutamine and BCAAs to bounce back quicker
- Keep it clean – no fillers, no junk, no artificial nasties
What’s inside and why it matters
Hydro ISO (Whey Protein Isolate)
- Ultra-clean WPI for real lean muscle gains
- Fast absorption with zero bloat
- Smooth taste – no fake flavours, no fillers
BCAAs
- Helps preserve muscle during fasted or high-intensity sessions
- Reduces muscle soreness for faster bounce-back
- Boosts hydration and stamina mid-workout
Glutamine
- Supports muscle repair under training stress
- Boosts immunity and gut health
- Essential for recovery during calorie deficits or heavy volume phases
HOW TO USE IT
Hydro ISO
Morning:
Quick, clean protein to start your day strong.
Mix with water or blend into oats for a lean breakfast boost.
Post-workout:
You’ve trained hard — now fuel recovery.
Take 25g of Hydro ISO within 30 minutes of finishing your workout to trigger lean muscle repair.
BCAAs
Intra-Workout
Sip throughout your session to stay sharp, hydrated, and prevent muscle breakdown.
Also helps reduce cramping and delay fatigue mid-training.
Glutamine
Post-Workout:
Take after training to support muscle recovery and reduce soreness.
Bedtime:
Take before bed to support overnight recovery and help preserve muscle while you sleep.
Suitable for
Why should you try Next Generation Supplements Lean Muscle WPI Stack?
- Athletes & Lifters chasing lean muscle and clean recovery
- Anyone cutting, recomping, or training fasted
- Time-poor professionals who still train hard
- Ingredient-conscious users looking for ultra-clean formulas
- High-achievers who demand results — and no excuses
Frequently Asked Questions
Do you have some questions about Lean Muscle WPI Stack?
How would I optimise the usage of Lean Muscle WPI Stack?
Optimise your Lean Muscle Stack WPI:
BCAA Refuel
Sip during workouts for endurance, hydration, and muscle protection.
Hydro ISO (WPI)
Take post-workout to hit your protein window and support lean gains.
Pure Glutamine
Use after training and before bed to speed recovery and protect muscle.
Quick Tips:
- Use daily even on rest days
- Pair with clean meals and consistent training
- Don’t wing it. Dose with purpose. Train with intent
Will this help me build lean muscle without gaining fat?
Yes. This stack is designed to support lean growth, not bulk. It’s low in carbs and sugar, macro-friendly, and helps fuel muscle while keeping recovery dialed in.
Is this stack suitable for beginners?
Absolutely. Whether you’re just starting out or fine-tuning your performance, these products are clean, effective, and easy to use.
Are the flavours natural or artificial?
We keep it real. Our flavours taste like the label says (e.g. choc mint = choc mint), without the chemical aftertaste you get from low-grade formulas.
Is it gluten-free?
Yes — all products in the Lean Muscle Stack are gluten-free and made with premium, clean ingredients.
Can I stack this with other supplements?
Yes. These three are foundational — cleanly formulated to play well with others. Whether you add creatine, pre-workout or vitamins, this stack won’t interfere.
Tailored Recommendations
Stacks that work wonders depending on your needs and goals.
-
Weight Gainer MegaPack
$197.56
$158.05 -
Strength, Energy & Weight Gains
Original price was: $178.35.$142.68Current price is: $142.68.
-
Weight Gainer
$114.76
$91.81
Why Us?
Why should you choose Next Generation Supplements Lean Muscle Stack?
At Next Generation Supplements, we are committed to providing products that combine great taste with exceptional nutrition.
Our products stand out for its high-quality ingredients, superior taste, and effectiveness in supporting your fitness journey.
Whether you’re aiming to build muscle, recover faster, or simply add more protein to your diet, Lean Muscle Stack is the perfect choice.
The Best Lean Muscle Stack
What makes Next Generation Supplements Lean Muscle stack different?
Proudly Australian
Our commitment to quality starts with being 100% Australian owned, made, and packaged. Not all protein powders are created equal, and we ensure ours stands out by sourcing the highest quality ingredients. By choosing Australian-made protein powder, you’re opting for superior bio-availability, flavor, and solubility.
Pure and Natural
Our protein powder is as real as it gets – grass-fed, chemical-free, and hormone-free. We source from premier producers like Murray Goulburn in Victoria, Australia, and Fonterra in New Zealand, the makers of Devondale Milk, ensuring top-tier quality.
Exceptional Standards
We know where our ingredients come from, and we believe in the efficacy of our protein powders. Supporting local producers not only guarantees a higher grade product but also supports sustainable farming practices. Experience the difference with our premium Australian protein powder.
Read more: The difference between Australian and imported (U.S.A) protein powders
Directions & Ingredients
Directions & Ingredients
Hydro ISO
Directions
Place 2 scoops of Hydro-Iso into a shaker with approximately 200ml of water or milk and shake until fully dissolved.
Ingredients
Chocolate
Whey Protein Isolate, Whey Protein Hydrolysate (16%), Cocoa Powder, Flavour, Salt, Sucralose
Vanilla
Whey Protein Isolate, Whey Protein Hydrolysate (16%), Flavour, Salt, Sucralose
Iced Coffee
Whey Protein Isolate, Whey Protein Hydrolysate (16%), Flavours, Instant Coffee (2.5%), Sucralose
Nutritional Info
Serving size: 28g
| CHOCOLATE | ||
|---|---|---|
| Qty per serve |
Qty per 100g |
|
| Energy | 467kj (112 cal) |
|
| Protein | 25g | |
| Fat, Total | 0.5g | |
| - Saturated | 0.3g | |
| Carbohydrates | 0.9g | |
| - Sugars | 0.6g | |
| Dietary Fibre | 0.4g | |
| Sodium | 140mg | |
Serving size: 28g
| VANILLA | ||
|---|---|---|
| Qty per serve |
Qty per 100g |
|
| Energy | 466kj (111 cal) |
|
| Protein | 24.3g | |
| Fat, Total | 0.4g | |
| - Saturated | 0.2g | |
| Carbohydrates | 0.7g | |
| - Sugars | 0.5g | |
| Gluten | ||
| Dietary Fibre | ||
| Sodium | 140mg | |
Serving size: 28g
| ICED COFFEE | ||
|---|---|---|
| Qty per serve |
Qty per 100g |
|
| Energy | 428kj (102 cal) |
|
| Protein | 23g | |
| Fat, Total | 0.3g | |
| - Saturated | 0.2g | |
| Carbohydrates | 1.3g | |
| - Sugars | 0.8g | |
| Gluten | ||
| Dietary Fibre | ||
| Sodium | 140mg | |
Re-fuel BCAAs
Directions
Mix 2 teaspoons of Re-Fuel BCAAs into about 500ml of cold water.
Wait 5-6 minutes for the BCAAs to completely dissolve before drinking.
Ingredients
L-Leucine, L-Glutamine, L-Isoleucine, L-Valine, Flavour, Inulin (Soluble Fibre), Food Acid (330), Intense Sweetener (954, 952), Potassium Phosphate, Magnesium Carbonate, Colour (124), Pyridoxine Hydrochloride (Vitamin B6)
Nutritional Info
Serving size: 8g (2 teaspoons)
| BERRY BLAST | ||
|---|---|---|
| Qty per serve |
Qty per 100g |
|
| Energy | 27kj (6 cal) |
215kj (51 cal) |
| Protein | Less than 0.1g | Less than 0.1g |
| Fat, Total | Less than 0.1g | Less than 0.1g |
| - Saturated | Less than 0.1g | Less than 0.1g |
| Carbohydrate | 1.1g | 9.1g |
| - Sugars | 1.1g | 9.1g |
| Dietary Fibre | 0.8g | 6.2g |
| Sodium | Less than 0.1mg | 3mg |
| Potassium | 13mg | 104mg |
| Magnesium | 9.0mg (3% RDI) | 72.1mg |
| Phosphorous | 10.3mg (1% RDI) | 82.1mg |
| Glutamine | 2.4g | 18.9g |
| Essential Amino Acids | ||
| Isoleucine | 1.7g | 13.2g |
| Leucine | 3.8g | 30.5g |
| Valine | 1.7g | 13.2g |
| Vitamin B6 as Pyridoxine HDCL | 1.1g | 8.8g |
Serving size: 8g (2 teaspoons)
| SOUR GRAPE | ||
|---|---|---|
| Qty per serve |
Qty per 100g |
|
| Energy | 27kj (6 cal) |
215kj (51 cal) |
| Protein | Less than 0.1g | Less than 0.1g |
| Fat, Total | Less than 0.1g | Less than 0.1g |
| - Saturated | Less than 0.1g | Less than 0.1g |
| Carbohydrate | 1.1g | 9.2g |
| - Sugars | 1.1g | 9.1g |
| Dietary Fibre | 0.8g | 6.2g |
| Sodium | 14mg | 110mg |
| Potassium | 13mg | 104mg |
| Magnesium | 9.0mg (3% RDI) | 72.1mg |
| Phosphorous | 10.3mg (1% RDI) | 82.1mg |
| Glutamine | 2.4g | 18.9g |
| Essential Amino Acids | ||
| Isoleucine | 1.7g | 13.2g |
| Leucine | 3.8g | 30.5g |
| Valine | 1.7g | 13.2g |
| Vitamin B6 as Pyridoxine HDCL | 1.1g | 8.8g |
Glutamine
Directions
Pure Glutamine can be taken with water or mixed with protein.
Inactive Individuals:
- Take 2-4 grams per day upon waking up.
Active Individuals:
- Weight up to 75kg: Take 5 grams (1 teaspoon) per day.
- Weight over 75kg: Take 10 grams (2 teaspoons) per day.
For Enhanced Results:
- Take 5 grams 30-45 minutes before training.
- Take 5 grams immediately after training.
Ingredients
99.9% L-Glutamine
Nutritional Info
Servings per package: 100
Serving size: 2g (1/2 teaspoon)
| PURE GLUTAMINE | ||
|---|---|---|
| Qty per serve |
Qty per 100g |
|
| Energy | 65.6kj (16 cal) |
1640kj (392 cal) |
| Protein | 0.0g | 0.0g |
| - L-Glutamine (amino acid) |
5g | 100g |
| Fat | 0g | 0g |
| Carbohydrate | 0 | 0g |
| Sugars | 0g | 0g |
| Sodium | Less than 0.1mg | Less than 0.1mg |
| Potassium | Less than 0.1mg | Less than 0.1mg |
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Product Summary
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Delivery
We offer free shipping on all orders over $99 Australia wide. All orders are shipped via Australia Post or courier and are dispatched within 1 business day.
Shop with confidence
Assisting Australians to achieve their health and fitness goals since 2004
SKU: S-ALLC-LMWS
Category: Supplement Stacks
Tags: Muscle Gain, Muscle Stacks, Post Workout, Protein Powders, Recovery, Strength, Supplement Stacks, Whey Protein
Brand: Next Generation Supplements
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