Allmax Nutrition IsoFlex 2lbs Blueberry Muffin – Bulldog Nutrition Canada
Allmax Nutrition IsoFlex 2lbs Banana – Bulldog Nutrition Canada
Allmax Nutrition IsoFlex 2lbs Birthday Cake – Bulldog Nutrition Canada
Allmax Nutrition IsoFlex 2lbs Chocolate Mint – Bulldog Nutrition Canada
Allmax Nutrition IsoFlex 2lbs Chocolate – Bulldog Nutrition Canada
Allmax Nutrition IsoFlex 2lbs Chocolate Peanut Butter – Bulldog Nutrition Canada
Allmax Nutrition IsoFlex 2lbs Cookies And Cream – Bulldog Nutrition Canada
Allmax Nutrition IsoFlex 2lbs Pineapple Coconut – Bulldog Nutrition Canada
Allmax Nutrition IsoFlex 2lbs Strawberry – Bulldog Nutrition Canada
Allmax Nutrition IsoFlex 2lbs Vanilla – Bulldog Nutrition Canada

Allmax IsoFlex, 2lbs

Regular price $84.95 Sale price$67.97 Save 20%
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  • Brand Allmax Nutrition

Allmax IsoFlex is a whey protein isolate powder with no whey concentrate, per the label. Each scoop gives 27 g of protein and 110–120 calories depending on flavour, with 1–3 g of carbohydrates and 0–1 g of fat and sugars. The protein is ISOFLEX® whey protein isolate made with ...

Allmax IsoFlex is a whey protein isolate powder with no whey concentrate, per the label. Each scoop gives 27 g of protein and 110–120 calories depending on flavour, with 1–3 g of carbohydrates and 0–1 g of fat and sugars. The protein is ISOFLEX® whey protein isolate made with Allmax’s Hybrid-Ratio Ion-Filtration (HRI) — a blend of cross-flow ultra-filtered, ion-charged particle-filtered and alpha-lactalbumin-rich whey protein isolates. The 2lb (907 g) tub holds about 30 servings for most flavours.

Spec Per Serving (1 scoop)
Serving Size 1 scoop — 30 g for most flavours; 31 g Cookies & Cream; 32 g Birthday Cake
Servings per Container ~30 (Cookies & Cream ~29, Birthday Cake ~28) — 907 g tub
Protein 27 g
Calories 120 (Chocolate Mint: 110)
Carbohydrates / Sugars 1–3 g / 0–1 g, by flavour
Fat 0–1 g, by flavour (Chocolate Peanut Butter 1 g)
ISOFLEX® Whey Protein Isolate 29.8 g
BCAAs (label amino profile) Leucine 2,750 mg · isoleucine 1,555 mg · valine 1,607 mg (about 5.9 g total)
Sweeteners Sucralose and acesulfame potassium
Flavours Blueberry Muffin · Cookies & Cream · Chocolate · Chocolate Mint · Banana · Birthday Cake · Chocolate Peanut Butter · Pineapple Coconut · Strawberry · Vanilla
Label Marks Gluten-free (“Contains No Gluten”) · kosher dairy · registered facility · every lot lab tested
  • 27 g protein per scoop — at 110–120 calories, with 1–3 g of carbohydrates depending on flavour
  • Isolate only — the label states IsoFlex contains no whey concentrate; its comparison chart puts protein at 90% of the scoop by weight (27 g in 30 g)
  • Hybrid-Ratio Ion-Filtration (HRI) — the label describes HRI as a hybrid of two isolate purification technologies combined at a specific ratio; the medicinal ingredient panel lists cross-flow ultra-filtered, ion-charged particle-filtered and alpha-lactalbumin-rich whey protein isolates
  • Full amino acid profile on the label — leucine 2,750 mg, isoleucine 1,555 mg and valine 1,607 mg per serving, naturally occurring from whole protein — the label states zero non-protein amino acids
  • Gluten-free — every Canadian IsoFlex label states “Contains No Gluten”
  • Ten flavours in the 2lb size — about 30 servings per tub — a practical size for trying a new flavour

Best for: Adults who want a whey isolate shake with 27 g of protein for 110–120 calories, mixed with water or low-fat milk; anyone who likes to rotate flavours.

Not ideal for: Anyone with a milk allergy; anyone looking for a high-calorie shake to support a calorie surplus — consider a mass gainer instead.

Ingredients: Medicinal — ISOFLEX® whey protein isolate [hybrid-ratio ion-filtered whey protein isolate (cross-flow ultra-filtered whey protein isolate, ion-charged particle-filtered whey protein isolate, alpha-lactalbumin-rich whey protein isolate)] (Bos taurus — milk), 29.8 g per scoop. Non-medicinal ingredients vary by flavour. Most flavours use natural and artificial flavours, guar gum, sunflower lecithin, sucralose and acesulfame potassium. Chocolate adds cocoa powder; Chocolate Peanut Butter adds peanut flour, cocoa powder and salt; Chocolate Mint adds salt; Strawberry adds coconut powder, strawberry powder, citric acid and FD&C Red #40; Pineapple Coconut adds coconut powder; Blueberry Muffin adds citric acid; Birthday Cake adds cellulose and xanthan gums, sugar, soy lecithin, palm oil, corn starch, glucose and FD&C colours; Cookies & Cream includes cookie pieces. Check your flavour’s label for the full list. Allergen Info: Allergens by flavour (Canadian label): Chocolate, Chocolate Mint, Banana and Vanilla — contain milk. Strawberry and Pineapple Coconut — contain milk and coconut. Cookies & Cream, Birthday Cake and Blueberry Muffin — contain milk and soy. Chocolate Peanut Butter — contains peanut (peanut flour) and milk; some label versions also declare sesame. All flavours are produced in a facility that also handles wheat, egg, peanut, tree nut, sesame, fish, crustacean and shellfish products. Always check the label of your specific flavour for the complete ingredient and allergen statement. Suggested Use: Mix or shake 1 scoop of powder with approx. 150 mL (5 oz) of cold water or low-fat milk immediately before consumption. Drink enough fluid before, during and after exercise. Take a few hours before or after taking other medications. Do not use if the inner seal is broken. Always read the full label before use.

Who Is This For?

IsoFlex is for adults who want a straightforward whey isolate shake — 27 g of protein per scoop at 110–120 calories — after training, between meals or whenever whole-food protein isn’t practical. The 2lb tub gives about 30 servings and comes in ten flavours.

Who Is This NOT For?

  • ✗ Anyone under 18 — the label says for adult use only
  • ✗ Anyone pregnant or breastfeeding — the label asks you to consult a healthcare practitioner prior to use
  • ✗ Anyone with a milk allergy — every flavour contains milk (whey)
  • ✗ Anyone with a peanut or sesame allergy — Chocolate Peanut Butter contains peanut, and all flavours are made in a facility that also handles peanut and sesame
  • ✗ Anyone with a soy allergy choosing Cookies & Cream, Birthday Cake or Blueberry Muffin, or a coconut allergy choosing Strawberry or Pineapple Coconut
  • ✗ Vegans — whey protein isolate is a dairy ingredient
  • ✗ Anyone who needs a calorie-dense shake for a bulking phase — IsoFlex is 110–120 calories per scoop

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
  • ✓ Thousands of verified customer reviews store-wide
  • ✓ 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.

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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 (Hybrid-Ratio Ion-Filtration) is Allmax’s name for the process behind IsoFlex. The label describes it as a hybrid of two isolate purification technologies, combined at a specific ratio, to produce an ultra-pure whey protein isolate while keeping a high protein yield. The medicinal ingredient panel lists the result as a blend of cross-flow ultra-filtered whey protein isolate, ion-charged particle-filtered whey protein isolate and alpha-lactalbumin-rich whey protein isolate.
Does IsoFlex contain any whey concentrate?
No. The label states IsoFlex contains no whey concentrate — only whey protein isolate. Per scoop, the Canadian labels show 27 g of protein with 0–1 g of fat, 1–3 g of carbohydrates and 0–1 g of sugars depending on flavour.
Is Allmax IsoFlex suitable for competitive athletes in drug-tested sports?
IsoFlex is made in a registered facility and every lot is lab tested, per the label. We do not make any sport-certification claim for IsoFlex on this page. Athletes competing under WADA, USADA, CCES or similar anti-doping rules should choose products currently listed in a sport certification database and check the lot number before use.
What is the difference between IsoFlex 2lb and IsoFlex 5lb?
Both are IsoFlex whey protein isolate with 27 g of protein per scoop. The 2lb (907 g) tub has about 30 servings for most flavours (Cookies & Cream about 29, Birthday Cake about 28). The 5lb tub has about 75 servings (Cookies & Cream about 73). Flavour line-ups differ by size: at Bulldog the 2lb comes in ten flavours and the 5lb in Chocolate, Strawberry, Vanilla, Cookies & Cream and Chocolate Peanut Butter. Calories and carbs vary slightly by flavour, so check the label for yours.
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 product, never grey market or counterfeit inventory.

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