SKU: 26335243743

ISO-FX® Whey Protein Isolate | Premium Protein for Lean Nutrition & Recovery Support

Sale price$36.90 Regular price$41.00
Save 10%

Pay in installments of $10.25 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 3 - Aug 8

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

ISO-FX® Whey Protein Isolate | Premium Protein for Lean Nutrition & Recovery SupportFX Supps ISO FX Whey Protein Isolate 2 lb 90% WPI90, Low Lactose, Fast Mixing ISO FX Whey Protein Isolate is created for individuals who want more than just another protein powder. It is built for people who value efficiency, purity, reliability, and performance in every scoop. With 90 percent pure whey protein isolate, ISO FX provides a clean, high quality protein source that supports active lifestyles and demanding routines. Instead of focusing on

FX Supps® ISO-FX® Whey Protein Isolate 2 lb | 90% WPI90, Low Lactose, Fast-Mixing

ISO-FX® Whey Protein Isolate is created for individuals who want more than just another protein powder. It is built for people who value efficiency, purity, reliability, and performance in every scoop. With 90 percent pure whey protein isolate, ISO-FX® provides a clean, high-quality protein source that supports active lifestyles and demanding routines. Instead of focusing on what the product contains, ISO-FX® is designed to elevate what you can achieve: stronger recovery cycles, leaner muscle development, better dietary control, and a more consistent path toward your personal fitness goals.

Exceptional Protein Quality

ISO-FX® offers a level of protein purity that delivers dependable nutritional support day after day. Users who rely on structure in their diet appreciate how easy it becomes to meet their daily protein targets without dealing with unnecessary fats, sugars, or carbs. This level of purity gives you more control over your nutrition, helping you maintain the dietary precision required for transformation, performance, or long-term health management.

Smooth Digestion and Comfort

Many people love the results of whey protein but struggle with digestion. ISO-FX® is intentionally developed as a low-lactose formula, using advanced filtration that removes most of the lactose found in standard whey. This gives you a protein source that feels light, smooth, and comfortable to consume even on busy days or during intense training phases. The real value here is consistency. When digestion is predictable and comfortable, your protein routine becomes sustainable rather than something you need to work around.

Fast Nutrient Delivery When It Matters Most

ISO-FX® is engineered for quick absorption, giving your body access to essential amino acids when they are most needed. This fast delivery supports efficient recovery rhythms that keep you progressing rather than plateauing. Athletes and active individuals benefit from a product that works in harmony with their training cycles, helping them stay on schedule, stay motivated, and stay strong.

Transparent, Clean, and Reliable

ISO-FX® is created with full ingredient transparency and without unnecessary additives. For users who prefer knowing exactly what they are putting into their body, ISO-FX® provides clarity and reassurance. This level of reliability helps you maintain confidence in your daily nutrition, which is essential for long-term success. When you know your protein source is clean, consistent, and dependable, you create a nutritional foundation that supports every part of your lifestyle.

Supports Goals That Truly Matter

ISO-FX® is not positioned as a quick fix. It is designed to support real personal goals that require commitment and strategic nutrition. Whether you are working toward fat reduction while preserving muscle, building strength through progressive training, or supporting general wellness, ISO-FX® helps you stay aligned with your priorities. Its macronutrient profile fits easily into calorie-controlled or performance-focused meal plans, giving you a tool that adapts to your needs rather than forcing you to adapt around it.

A Versatile Protein for Busy Lives

ISO-FX® fits seamlessly into daily routines. It mixes easily with water or milk and can be added to smoothies, oatmeal, or recipes. This flexibility makes it simple to keep your protein intake consistent regardless of schedule, location, or lifestyle. Many people value ISO-FX® because it helps them maintain momentum even on hectic days, keeping nutrition simple instead of complicated.

A Protein That Aligns With Your Standards

ISO-FX® uses WPI90, one of the highest grades of whey protein isolate available. This level of refinement gives you more usable protein in every scoop and fewer elements that work against your dietary goals. For individuals who expect their supplements to match the level of effort they put into their own performance, ISO-FX® is engineered to deliver the quality and standard they deserve.

ISO-FX® Whey Protein Isolate brings clarity, consistency, quality, and ease to your nutrition plan. It supports disciplined routines, ambitious goals, and active lifestyles by delivering a level of purity and performance that helps you stay aligned with what you are striving to achieve. It is protein built not only for results, but for the long-term value it brings to your fitness, wellness, and daily life.


FDA Disclaimer

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 26335243743

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.6 ★★★★★
Based on 30 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
L
Verified Purchase
Lmed201
Belleville, US
★★★★★ 5
RECOMMENDED!!
I purchased this for my 68lb Staffy (but really, all our dogs share/ rotate) because the one he had been using wasn’t very challenging and this one looked like it might force him to work a little harder to get the treats out. I was right! He LOVES it - I love it - they ALL love it! There are 3 fairly deep crevices the you can push small treats down into so the dog has to lick them out (you could also use organic peanut butter - *I don’t recommend ever giving dogs any other type of PB as it contains too much salt, sugar, GMOs & preservatives). I take about 10 or so small “squishy” treats and stuff them as far down as I can and he works for almost an hour to lick them until they’re gooey (LOL) enough to be licked out! My other dogs do the same! All our dogs are rescued and “pitbull types” (except one small breed), so they’re strong chewers, but NOT destructive. ****I frequently see people in reviews complaining that their dog destroyed a toy made for “strong chewers.” There’s a HUGE difference between strong and destructive!! Mine are strong chewers, and we like to keep Benebones around here for the times they have the need/instinct to chew (which often!), but they are not destructive dogs. If you have a destructive dog, there is likely no toy on earth they won’t leave in pieces. Destructive dogs are often that way because their breed/age/required needs aren’t being met, so naturally they attempt to release that pent up energy onto toys (or even furniture/shoes/etc. It’s not the dog’s fault. It’s definitely not a manufacturer’s or seller’s fault. #1 Rule: Know your dog!! If they destroy most toys within minutes, they’re likely lacking exercise. If you’re exercising them to their breed & age requirements and they’re still destructive, you can work on either behavior modification or finding toys that they CAN’T destroy. Benebones, Nylabones, etc are great because they are very well made and even as the dogs chew little pieces off, it creates edges that clean their teeth. Win-Win!! These are things we’ve learned from running a canine rescue & rehab for over 20 years, which means fostering dogs of all backgrounds, personalities, ages and needs (90% of which are pibbles).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2019
N
Verified Purchase
Nadira
Port Orchard, US
★★★★★ 4
Almost the best, and great price point...
I love this toy - I give it to my toughest chewer stuffed up with kibble and p-butter that I've frozen an hour or two - and it's cool to play with unfilled too, as it's pliable and soft/bouncy while being also very durable. Starmark is my 3rd of 3 name brands I will buy for my dogs, due to my need for durability for tough chewers thus limiting what toys/brands I can even pick from (West Paw is one I'm now just trying, and Outward Hound is my usual go to over the years), and to be honest, between price and availability, I really want to move Starmark to my number 1 go to but....from what I can tell, the other two companies have great policies about releasing what/where their products are made (of), and I cannot seem to find out whether or not Starmark is also i.e. food-grade and/or whether they have a guarrented return policy or not so....a star off for that until/unless I can assure myself and you, reader, that the quality is just as good as the other two companies. To be fair though, and due to not being able to find any info on material qualities, this IS the one and only toy I have used, but they are also often sold at many local stores and so many of the other treat-toys in this brand have caught my eye, as far as types of toys available and ease to find if/when a replacement (or double to ship to my sister's dog!) is needed. I am thinking that, from what I've seen/felt at local stores for this brand, the durability is likely on par so...again, all going back to the material choice and manufacturing info, for me, that prevents this being a full 5 stars.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 29, 2017
T
Verified Purchase
theliontamer
Belleville, US
★★★★★ 5
Keeps even the most destructive dogs entertained
I was hesitant to make this purchase but after I bought the starmark everlasting chew ball (which I also highly recommend), I gave this one a try. I was surprised how heavy it was, definitely only to be thrown outside as it is made out of solid rubber and could easily go through the tv screen if not careful. My dog is extremely destructive and this not only is very durable, it also keeps him entertained for up to 30 minutes at a time. I have not used the star mark treats specifically designed for it, but regular kibble fits into the grooves just fine. Also, if you put small pieces of chick-fil-a waffle fries, dogs go nuts for it. UPDATE: This toy keeps my rambunctious beagle mix entertained better and longer than any other interactive dog toys I have bought. Of all the toys my dog currently owns, (Starmark Bob-A-lot, Trixie Chess board, Starmark Treat-Dispensing chew ball, and several Kongs) this toy is by far his favorite and keeps him occupied while I get work done around the house, distraction-free. Because of it's made of such dense material, I do have one potential concern: since it's approximately the same size/weight as a full beer bottle) this toy might not be the best fetching choice if your dog is quick and tries to catch balls/frisbees in mid-air since it could bust up his/her head and teeth with it's momentum if he caught it wrong. - But if you don't plan on using this toy for fetching, it is a fantastic purchase for your furry pal.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 14, 2013
M
Verified Purchase
MotomoGirl
Draper, US
★★★★★ 3
The toy is fine. My dog outsmarted it.
The toy itself is durable and my dog enjoys it. The problem is that I guess my dog is too smart. The first time I gave it to her, it took her about 25 minutes to empty it. I thought I found a winner. The 2nd time-8 minutes. 3rd time-2 minutes. Oh well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 31, 2025
M
Verified Purchase
MH-MPLS
Dallas, US
★★★★★ 5
Amazing, durable toy!
This dog toy is tougher than a Kong, and seems like it's a lot more fun! My miniature dachshunds absolutely love this toy, so much so that I had to get more so that they didn't fight over it. They can lick and play with it for hours and never get discouraged no matter how deep the treat is stuck inside. There are three channels in the toy, at varying widths, so the toy is great for all skill levels. One of our dogs didn't know how to play with toys at all when we adopted him, so we started him out on the larger of the 3, filling it with peanut butter and treats that he would be able to access more easily. Now he picks the toy up and carries it around with him and can get treats out of all channels. He's learning so quickly! Another pup of ours is a fairly aggressive chewer, and since he can't get his teeth into the channels, he isn't able to pry at it like with the black Kong - which he was able to tear after a while. I also think that this rubber gets a lot more slippery than a Kong, so it is harder for teeth to really penetrate, without slipping. Love this toy! Thank you Starmark!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 15, 2014

recommand products