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Australian ownedFormulated in Gold Coast
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Dual action:27g grass-fed whey for muscle + 5g collagen for joints, tendons and skin
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Easy on the gut:naturally low lactose, minimal ingredients, no gut drama
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Daily versatility:shakes, smoothies, oats or baking - one scoop, once a day
Description
What's inside & why it works
Rebuild is for people who want to keep training hard without their protein working against them. 27g of grass-fed whey feeds muscle now; 5g of collagen peptides supports the joints, tendons and skin holding it all together.
Naturally low lactose and made with minimal ingredients, it mixes smooth and sits light - no bloating, no gut drama.
Use it after training, or any time of day you need protein that pulls its weight.
How To Use
Dosage & timing
Mix 1 scoop with 250-300ml of cold water or milk. Vary the liquid to your preferred taste and thickness.
Best practices:
Shake with cold water for a lighter everyday serve, or milk for a creamier one
Blend into smoothies when you want a thicker, more filling shake
Stir into oats or use in baking for a practical protein boost
Keep it consistent on training and non-training days - the collagen benefits build with daily use
Use as part of a balanced diet. Protein needs vary by body size, training and total food intake.
Benefits
What you'll feel
Taking Rebuild daily, you'll notice:
Sits light: smooth and creamy, with none of the heaviness or bloat standard whey can cause
Recovery you can feel: 27g of grass-fed protein and 7g BCAAs anchoring your post-training nutrition
Long-run support: 5g collagen peptides for skin, joints and tendons - benefits that build over weeks, not days
An easy routine: works in shakes, smoothies, oats and baking
No compromise: tastes like a treat, with a label you can actually read
Individual results vary. Use as directed and pair with consistent nutrition, movement, hydration and sleep.
Nutritional Information
Grass-fed whey protein isolate and concentrate with collagen peptides, naturally flavoured and sweetened with certified organic stevia.
Tuff SuRebuild Whey + Collagen supplement bottle with cows grazing in a field and 'From Pasture to Protein' text.ps
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Container of Rebuild Whey + Collagen supplement on a gym floor with people working out in the background.
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Rebuild Whey and Collagen | Grass-fed
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Hand holding a glass of tuff supps whey protein isolate creamy beverage against a blurred indoor background
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Container of Tuff Labs Rebuild Whey + Collagen supplement on a dark background
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Tuff supps Rebuild Whey + Collagen supplement container on a dark background
Why Tuff Supps
Great Protein Shouldn't Upset your gut
110% Money back
Not happy within 30 days? We refund 110% of your first tub. No questions asked.
Easy on The Stomach
Gentle on sensitive stomachs. Minimal ingredients and gut-friendly formulas in every tub.
Premium Whey
From pasture-raised cows, naturally sweetened with organic stevia.
No Artificial Junk
No fillers, no artificial sweeteners, none of the stuff that upsets your stomach. Just what you need.
HOW IT WORKS
What To Expect
Add 1 scoop to 250-300ml of water or milk, once a day.
DAY 1
FIRST SHAKE
Creamy and smooth, tastes like a treat
Sits light – no bloat, no gut drama
WEEKS 1-3
RECOVERY
Better recovery between sessions, less next-day soreness
Digestion fully settled - the habit locks in
WEEKS 3-6
SKIN & STRUCTURE
Skin looks and feels better as the collagen dose builds
Less joint and tendon stiffness after heavy sessions
WEEKS 6+
IT COMPOUNDS
Faster recovery becomes the new normal - you notice it most when you skip it
Muscle and structure build together, so results stack instead of plateauing
5g collagen peptides per serve - the daily dose shown to improve skin elasticity in clinical trials.
Individual results vary. Reflects what customers commonly report with daily use alongside training.
INGREDIENTS
Every ingredient has a place.
No fillers. No shortcuts. Just performance.
Grass-Fed Whey
A blend of whey isolate and concentrate from pasture-raised, grass-fed cows - 27g of protein per serve with the clean hit of WPI and the creamy taste of WPC. Naturally low lactose, so it sits right.
5g Collagen Peptides
Hydrolysed bovine collagen at the daily dose shown to support skin elasticity in clinical trials. It looks after the structure - skin, joints, tendons - and the benefits build over weeks of daily use.
7g BCAAs
Naturally occurring in the whey - no amino spiking, no inflated numbers. Leucine, isoleucine and valine feed muscle repair, so you back up session after session.
Naturally Sweet
Flavoured naturally and sweetened with organic stevia. No artificial sweeteners, no fillers - nothing on the label you can't read.
High-volume phases where the joints take as much of a beating as the muscles.
YOU'RE IN IT FOR THE LONG RUN
Training isn't a phase. You want to recover well, stay strong, and still be turning up in twenty years.
STANDARD WHEY DOESN'T SIT RIGHT
Every tub so far has left you bloated or heavy. Naturally low lactose and minimal ingredients change that.
YOU WANT MORE THAN MUSCLE
Skin, joints and tendons matter as much as the mirror - and collagen works on the parts training stresses most.
FAQs
Frequently asked
questions
The WPI is pure whey isolate - 27.8g protein, less than 1g fat and carbs, 99.9% lactose-free. It's the leanest option. Rebuild combines whey isolate and concentrate with 5g of hydrolysed collagen peptides to support joints, tendons, skin and recovery alongside muscle. Choose WPI for maximum protein with minimum calories. Choose Rebuild if you want muscle and structural support in one serve.
Rebuild contains hydrolysed bovine collagen peptides which support joint, tendon and ligament health over time. It's not a quick fix, but consistent use alongside training helps reinforce the connective tissue that takes a beating during heavy or high-volume sessions. Most customers notice a difference within 4-6 weeks.
Rebuild is naturally low in lactose and made with minimal ingredients - no artificial sweeteners and no fillers, which are common causes of bloating in standard protein powders. It's not as lean as our WPI (which is 99.9% lactose-free), but most customers report no digestive issues.
Active people generally aim for around 1.2 to 2.2 grams of protein per kilogram of body weight per day, depending on training load and goals. The specific amount varies with your fitness goals, activity level and overall food intake - and it's best spread evenly across the day.
Thick, creamy and naturally sweetened with organic stevia. No artificial aftertaste. Available in Dutch Chocolate and Salted Caramel, with more flavours returning soon. Not sure? Grab a single-serve sample before committing.
You can, but most people won't need to. Rebuild already delivers 5g of hydrolysed collagen per serve alongside 27g of whey protein. That's a solid daily dose of collagen for joint and connective tissue support without buying two separate products.
Yes. Rebuild supports lean muscle retention during a calorie deficit while the collagen helps maintain skin elasticity and joint health as body composition changes. The added fullness from the thicker texture also helps with appetite control between meals.
