Allmax IsoFlex, 5lbs
Canada's Ultra-Pure Whey Isolate — Allmax IsoFlex 5lbs
Allmax IsoFlex delivers 27g of pure whey protein isolate per serving at just 111 calories, with less than 0.5g of sugar and virtually no fat — making it one of the most protein-dense, calorie-efficient choices available to Canadian athletes. Developed by Allmax Nutrition, a brand founded in Canada, IsoFlex uses a multi-step filtration process to produce an ultra-pure isolate with 6.1g of naturally occurring BCAAs per serving, including 2.9g of leucine. Bulldog Nutrition is an authorized Canadian and US retailer of Allmax — every tub is 100% authentic and ships fast across Canada and the US.
| Servings per tub | ~75 |
| Protein per serving | 27g |
| Calories per serving | 111 |
| BCAAs per serving | 6.1g (including 2.9g leucine) |
| Protein source | Pure whey protein isolate (multi-step filtration) |
| Sugar per serving | <0.5g |
| Flavours available | 4 in stock (Chocolate, Strawberry, Vanilla, Cookies & Cream) |
| Best for | Lean muscle, strict macro tracking, lactose-sensitive athletes |
Why Allmax IsoFlex?
- 27g protein per serving — more protein per scoop than most standard whey proteins
- 111 calories and <0.5g sugar — one of the leanest macro profiles of any 5lb protein in Canada
- 6.1g naturally occurring BCAAs per serving — including 2.9g leucine to drive muscle protein synthesis
- Multi-step filtration process — removes excess lactose, fat, and carbohydrates for exceptional purity
- Gluten-free and low-lactose — suitable for athletes managing dietary restrictions
- Canadian brand — Allmax Nutrition was founded in Canada and formulates with the Canadian athlete in mind
- 4 flavours in stock — Chocolate, Strawberry, Vanilla, and Cookies & Cream
Who Is This For?
IsoFlex is the right choice for athletes who want maximum protein per calorie without compromise. At 27g of protein per 111-calorie serving with virtually no sugar or fat, it is purpose-built for cutting phases, body recomposition, and anyone tracking macros precisely. Athletes who find standard blended proteins heavy on the stomach often do better with IsoFlex — the multi-step filtration removes the lactose and fat fractions that typically cause digestive issues. It is also a natural choice for Canadian athletes who want to support a homegrown brand that has been in the game for years.
Who Is This NOT For?
- ✗ Hard-bulk athletes who need calorie-dense shakes — at 111 cal/serving, consider a mass gainer for a surplus phase
- ✗ Vegans or vegetarians — dairy-derived whey protein isolate
- ✗ Anyone who needs a very wide flavour selection — IsoFlex currently offers 4 flavours; for more variety, GHOST Whey may be a better fit
- ✗ Anyone with a severe dairy allergy — while low-lactose, IsoFlex is still derived from milk
- ✗ Under 18 — not intended for use by minors
What's In It?
IsoFlex is built on a single-source protein matrix of pure whey protein isolate, processed through a proprietary multi-step filtration system that removes excess fat, carbohydrates, and lactose while concentrating the protein fraction. The result is 27g of protein per 30g scoop — an exceptionally high protein-to-weight ratio. Each serving provides 6.1g of naturally occurring BCAAs, including 2.9g of leucine (the key amino acid for initiating muscle protein synthesis), 1.7g isoleucine, and 1.5g valine. The formula is gluten-free and low-lactose, with sugar-free flavouring.
⚠️ Contains milk and soy. Always read the full label before use. These statements have not been evaluated by Health Canada or the FDA for disease treatment or prevention.
Why Buy From Bulldog Nutrition?
With over 10 years serving supplement customers across Canada and the US, Bulldog Nutrition is an authorized Canadian and US retailer of Allmax Nutrition — a brand founded in Canada. Every IsoFlex tub is sourced directly from Allmax, 100% authentic, and never grey market or counterfeit. Supporting an authorized Canadian retailer of a Canadian brand means your dollars stay in the supply chain they were meant for.
- ✓ Authorized retailer — authentic products only, never grey market or counterfeit
- ✓ Ships across Canada and the US — fast, reliable delivery to your door
- ✓ 10+ years in business — a track record you can rely on
- ✓ 4.7/5 stars from 38+ verified customer reviews
- ✓ Ongoing support available — reach us anytime via email or live chat
Add to cart and get Canada's purest whey isolate — shipped fast across Canada and the US.
Shipping Information
Bulldog Nutrition ships across Canada and the United States. Most orders are processed within 1 to 2 business days.
Free shipping is available on eligible orders over $100. Please note that drink cases are excluded from free shipping due to size and weight.
During extreme hot or cold weather, heat-sensitive or cold-sensitive items may be affected in transit. For full details, please review our Shipping Policy.
Product & Site Disclaimer
Website information is provided for general informational purposes only. Product details, images, ingredients, and labels may change without notice, so customers should always review the actual product packaging received before use. For full details, please review our Product & Site Disclaimer.
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