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Allmax IsoFlex, 2lbs

Regular price $79.95 Sale price$63.97 Save $15.98
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Allmax IsoFlex is the standard by which ultra-pure whey protein isolates are measured in Canada. Using a proprietary Hybrid-Ratio Ion-Filtration (HRI) technology — a precise combination of two isolate purification methods — IsoFlex removes fat, lactose, and non-protein components more thoroughly than standard ion-exchange or cross-flow filtration alone. Each serving delivers 27 grams of protein at just 110 calories, with zero fat, zero sugar, and 1 gram of carbohydrates. Informed Choice tested for banned substance purity. Available in the 2lb size for approximately 25 servings — ideal for trying a new flavour or keeping a rotation without committing to the 5lb size.

Protein per Serving 27g
Calories 110
Fat 0g
Carbohydrates 1g
Sugar 0g
Filtration Technology HRI — Hybrid-Ratio Ion-Filtration
Whey Concentrate None — 100% isolate
Third-Party Tested Informed Choice Certified
Servings ~25
Available Flavours Cookies & Cream, Chocolate, Chocolate Peanut Butter, Strawberry, Vanilla (+ seasonal options)
  • HRI Hybrid-Ratio Ion-Filtration — Allmax's proprietary dual-technology filtration system produces a purer isolate than either ion-exchange or cross-flow filtration alone, with enhanced bioactive whey fractions preserved
  • 27g protein at 110 cal with zero fat and zero sugar — one of the cleanest macro profiles in the protein category; no concentrate padding the numbers
  • 100% isolate — no concentrate added — Allmax explicitly states IsoFlex contains no whey concentrate; every gram of protein comes from the isolate fraction
  • Informed Choice certified — independently tested for banned substances; trusted by competitive athletes and professionals in tested sports
  • 2lb size — approximately 25 servings; the right size for flavour rotation or first-time buyers evaluating IsoFlex before committing to the 5lb container

Best for: Competitive athletes in tested sports; those on strict low-fat, low-carb diets; lactose-sensitive individuals; anyone who wants the purest possible whey isolate without compromise.

Not ideal for: Those looking for a higher-calorie protein for mass gaining (IsoFlex is optimized for lean macros); those seeking a budget option (ultra-pure isolate commands a premium price).

Ingredients & Allergens
Allmax IsoFlex contains whey protein isolate (processed via HRI dual-filtration technology), natural and artificial flavours, and sweeteners. Contains milk allergens. No wheat, soy, or egg. Manufactured by Allmax Nutrition in a cGMP-certified facility. Informed Choice tested. Always check the label of your specific flavour for the complete ingredient and allergen statement.

Who Is This For?

Allmax Nutrition protein is designed for athletes, gym-goers, and active adults who need convenient, high-quality protein to support muscle repair and growth. It works as a post-workout shake, a between-meals protein boost, or a quick breakfast option when whole-food protein is impractical.

Who Is This NOT For?

Not recommended for individuals with dairy allergies or lactose intolerance (unless specifically formulated as dairy-free). Those with very low protein requirements or sedentary lifestyles may not see significant benefit beyond whole-food protein sources. Always check the label for allergen declarations.

Why Buy From Bulldog Nutrition?

Bulldog Nutrition is an authorized Canadian and US retailer of Allmax Nutrition products. We source directly from the brand — never from grey market or unauthorized distributors — so every order is genuine and fresh.

  • ✓ Authorized Allmax Nutrition 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 2,400+ verified customer reviews
  • ✓ Ongoing support available — reach us anytime via email or live chat

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.

This site is protected by hCaptcha and the hCaptcha Privacy Policy and Terms of Service apply.

Need Help?

For the fastest assistance, please use Live Chat on our website. You can also text SUPPORT to 1-833-497-3885 or use our Contact Us page for order, shipping, returns, and general support questions.

Frequently Asked Questions

What is HRI Hybrid-Ratio Ion-Filtration and why does it produce a purer protein?
HRI is Allmax's proprietary dual-filtration system that combines two different isolate purification technologies — ion-exchange filtration and cross-flow microfiltration — at a specific ratio calibrated for optimal protein purity and bioactive fraction retention. Ion-exchange produces very high protein purity but can strip some bioactive compounds; cross-flow preserves those compounds but yields slightly lower purity. The hybrid approach captures the advantages of both while minimizing their individual weaknesses.
Does IsoFlex contain any whey concentrate?
No. Allmax explicitly states that IsoFlex contains zero whey concentrate. This is a meaningful distinction — many products labelled as 'isolate' blend in concentrate to reduce cost, which increases the fat, carbohydrate, and lactose content. IsoFlex's 0g fat and 0g sugar per serving reflects a genuinely concentrate-free isolate formula.
Is Allmax IsoFlex safe for competitive athletes in drug-tested sports?
Yes. Allmax IsoFlex is Informed Choice certified — meaning each batch is independently tested for substances banned under the World Anti-Doping Agency (WADA) code. Informed Choice is one of the gold standards for third-party testing in sport nutrition. Athletes competing under WADA, USADA, CCES, or similar anti-doping frameworks can use IsoFlex with confidence in its purity status.
What is the difference between IsoFlex 2lb and IsoFlex 5lb?
The formula is identical — the only difference is container size. The 2lb provides approximately 25 servings and is ideal for trying a new flavour or supplementing your existing supply. The 5lb provides approximately 62 servings and offers better value per serving for those who have found their preferred flavour and use IsoFlex as their primary protein supplement.
Is Bulldog Nutrition an authorized Allmax Nutrition retailer?
Yes. Bulldog Nutrition is an authorized Canadian and US retailer of Allmax Nutrition products. Allmax is a Canadian brand and all stock is sourced directly from the brand — you're always receiving genuine, fresh, Informed Choice-certified product, never grey market or counterfeit inventory.

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