Clean For Athletes Science - Innovation - Quality - Results AM/PM - Anytime - Pre/Post 90 Percent Protein Truly Superior Protein Technology Contains No Gluten, No Added Sugar ♢ Lab Tested & Certified, Guaranteed 27 g Protein¹ 0 g Sugars¹ ♢ 120 Calories¹ Natural & Artificial Flavors Informed Choice - We Test You Trust Regularly Tested for Banned Substances Lab Tested Every Lot cGMP Registered Facility Gluten Free Tested Kosher Dairy 100% Whole Protein Isolate Source - Native & Intact Non Denatured Soy Free Sweetened with Acesulfame Potassium & Sucralose Isoflex® has taken WPI technology to a whole new level of measurable superiority. If you're looking for the highest quality, most premium and fastest absorbing protein, then look no further than Isoflex®; a Truly Superior Whey Protein Isolate. In just about every way a protein can be, Isoflex® Is Truly Superior. What Does This Mean To You? A 100% Whey Protein Isolate Source Native & Intact, Non-Denatured Whey Protein Fractions Laboratory-Tested, Certified & Approved 27 g Pure Protein in Every Serving Hybrid Ratio Isolate (HRI) lon-Filtration Technology Isoflex® employs a unique protein extraction technology called HRI. A hybrid of two isolate purification technologies incorporated at a specific ratio to produce a truly superior ultra-pure Whey Protein Isolate. Cutting-Edge Hybrid-Ratio lon-Filtration (HRI) Technology allows Isoflex to retain an exceptionally high protein yield while maintaining enhanced bioactive whey fractions (chart on right). Isoflex contains absolutely NO Whey Concentrate. Concentrates have higher levels of fat and sugars with a lower percentage of protein and lower bioavailability than Isolates. While other brands use Concentrates, Isoflex users know that Isolates have a superior protein percentage and won't settle for non-Isolate blends. Bioactive Full-Spectrum Whey Protein Isolate Fractions Truly Superior Protein 53.8% Beta-Lactoglobulin 20.3% Alpha-Lactalbumin 18.8% Glycomacropeptide 4.3% Bi-Peptides & Tri-Peptides 2.5% Immunoglobulin 1.6% Bovine Serum Albumin 0.1% Lactoferrin Values as typical Unsurpassed The AllMax® Quality Guaranteed Every ingredient added and every lot produced is laboratory-tested for purity and potency to ensure consistent product quality and integrity every time, guaranteed. Clean for Athletes - Banned Substance Tested This product has been skip-lot tested for banned substances for the assurance of athletes and supplement users under the Informed Choice program. Protein Comparison
Source: USDA Food Database Protein By Percentage Protein Per 30 g Fat Per 30 g Biological Value (BV) 1. Isoflex® 90% 27 0.5 120 2. Trimmed Steak 29% 9 1 80 3. Tuna (canned in water) 23% 7 1 83 4. Chicken Breast 17% 5 1 79 5. Whole Egg 13% 4 3 100 ♢ Not a low calorie food. See nutritional panel for more information. †Per serving.
International delivery
Shipping calculated at checkout
Returns & exchanges
Within 30 days of delivery
Clean For Athletes Science - Innovation - Quality - Results AM/PM - Anytime - Pre/Post 90 Percent Protein Truly Superior Protein Technology Contains No Gluten, No Added Sugar ♢ Lab Tested & Certified, Guaranteed 27 g Protein¹ 0 g Sugars¹ ♢ 120 Calories¹ Natural & Artificial Flavors Informed Choice - We Test You Trust Regularly Tested for Banned Substances Lab Tested Every Lot cGMP Registered Facility Gluten Free Tested Kosher Dairy 100% Whole Protein Isolate Source - Native & Intact Non Denatured Soy Free Sweetened with Acesulfame Potassium & Sucralose Isoflex® has taken WPI technology to a whole new level of measurable superiority. If you're looking for the highest quality, most premium and fastest absorbing protein, then look no further than Isoflex®; a Truly Superior Whey Protein Isolate. In just about every way a protein can be, Isoflex® Is Truly Superior. What Does This Mean To You? A 100% Whey Protein Isolate Source Native & Intact, Non-Denatured Whey Protein Fractions Laboratory-Tested, Certified & Approved 27 g Pure Protein in Every Serving Hybrid Ratio Isolate (HRI) lon-Filtration Technology Isoflex® employs a unique protein extraction technology called HRI. A hybrid of two isolate purification technologies incorporated at a specific ratio to produce a truly superior ultra-pure Whey Protein Isolate. Cutting-Edge Hybrid-Ratio lon-Filtration (HRI) Technology allows Isoflex to retain an exceptionally high protein yield while maintaining enhanced bioactive whey fractions (chart on right). Isoflex contains absolutely NO Whey Concentrate. Concentrates have higher levels of fat and sugars with a lower percentage of protein and lower bioavailability than Isolates. While other brands use Concentrates, Isoflex users know that Isolates have a superior protein percentage and won't settle for non-Isolate blends. Bioactive Full-Spectrum Whey Protein Isolate Fractions Truly Superior Protein 53.8% Beta-Lactoglobulin 20.3% Alpha-Lactalbumin 18.8% Glycomacropeptide 4.3% Bi-Peptides & Tri-Peptides 2.5% Immunoglobulin 1.6% Bovine Serum Albumin 0.1% Lactoferrin Values as typical Unsurpassed The AllMax® Quality Guaranteed Every ingredient added and every lot produced is laboratory-tested for purity and potency to ensure consistent product quality and integrity every time, guaranteed. Clean for Athletes - Banned Substance Tested This product has been skip-lot tested for banned substances for the assurance of athletes and supplement users under the Informed Choice program. Protein Comparison
Source: USDA Food Database Protein By Percentage Protein Per 30 g Fat Per 30 g Biological Value (BV) 1. Isoflex® 90% 27 0.5 120 2. Trimmed Steak 29% 9 1 80 3. Tuna (canned in water) 23% 7 1 83 4. Chicken Breast 17% 5 1 79 5. Whole Egg 13% 4 3 100 ♢ Not a low calorie food. See nutritional panel for more information. †Per serving.
SKU
3-67596
Brand
ALLMAX
Category
health / sports-nutrition / protein / whey-protein
Variants
1
Customer reviews
3.0
verified purchase
Mixes clean, but too sweet
The 425 g tub is the right size to test a flavour before committing to a big one. It mixes with a few shakes in water — no clumps stuck to the bottom, no chalky grit — and it's noticeably thinner than a blend, which I prefer. Chocolate flavour is nice but its too sweet. Being an isolate, it sits much better on my stomach than concentrate does. Scoop was buried in the powder but easy to find.
8/20/2026
5.0
verified purchase
Great
This protein product is hands down the best I've tried in a long while. It blends up perfectly smooth with zero chalky grit, and the flavor is genuinely enjoyable without that artificial aftertaste. My recovery has felt quicker and it keeps me full and satisfied for hours.
4/12/2026
5.0
verified purchase
Great
This protein product is hands down the best I've tried in a long while. It blends up perfectly smooth with zero chalky grit, and the flavor is genuinely enjoyable without that artificial aftertaste. My recovery has felt quicker and it keeps me full and satisfied for hours.
4/12/2026
5.0
verified purchase
Best Whey Protein I ever tried
I love this brand and its protein powders. Nevertheless I stopped taking whey protein powders in general, because they all taste too artificial. I rather get my protein from natural foods.
But by all means, if you cannot deal with the hassle of cooking or simply want something quick, this is definitely a great choice. I usually opted for vanilla or chocolate.
4/7/2026
5.0
verified purchase
최고!
Quality is super! The ingredients are great! Size arranged! What you need! Performance is felt!
the product arranged, perfectly packed, the effect is definitely there! I will order more! Just as quickly delivered
11/7/2025
5.0
verified purchase
Best protein powder ever
this protein powder quality is so nice. I mix it with a pancake mix or my drink or anything. The ingredients are nice. It taste so good and the whey in it it makes me feel full for a long time. I use it after training and workout a good energy boost and to get my recommended needed dosage of a protein in my diet. it’s good if your getting into Fitness and it will benefit you that you will get to your protein and take a very easily.
10/30/2025
5.0
verified purchase
I've tried a lot of protein powders, but ALLMAX ISOFLEX is by far the best-tasting and easiest to mix I've ever used. The chocolate flavor is rich and not overly sweet, blending perfectly into just water without any chalky texture. It's incredibly gentle on my stomach, which is a huge win since other whey proteins have caused issues for me. This big tub is a staple in my pantry for a reliable and delicious post-workout shake.
9/23/2025
5.0
verified purchase
Great
Very good protein. 27g is a lot and the overall quality is high. Mix well, experienced no problem in digestion or with the package at all. I was also able to make good pancakes with them, very satisfied.
9/15/2025
5.0
verified purchase
Прекрасно!
Thank you very much for this product, it suited me, I like the packaging, comfortable and stylish, I will order more of these products, and recommend them to all my friends and relatives! good!!
8/31/2025
5.0
verified purchase
“Rich, smooth, and effective!”
“The chocolate flavor is absolutely delicious—rich and smooth without being overly sweet… I mix it with water, and it dissolves quickly with no clumps or gritty texture. Since incorporating it into my routine, I’ve noticed faster recovery after workouts, less muscle soreness, and a boost in my energy levels.”
