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

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

ISO-FX® is a whey protein isolate built for people who want a clean, high-protein source with nothing they do not need. Made with 90 percent pure whey protein isolate (WPI90), it delivers high protein per scoop with minimal fat, sugar, and carbs to support lean nutrition and recovery. Low in lactose, fast-mixing, and available in three flavors. Feed the work. Forge your legacy.

What sets ISO-FX whey isolate apart

Whey protein isolate is filtered to a higher purity than standard whey concentrate, so more of every scoop is protein. That makes ISO-FX a strong fit if you are tracking macros, cutting while preserving muscle, or simply want dependable daily protein without excess calories.

Low lactose and easy to digest

ISO-FX uses advanced filtration that removes most of the lactose found in standard whey, so it feels light and comfortable even during intense training phases. A protein that digests predictably is a protein you will actually take every day.

Fast absorption for recovery

Whey isolate is quickly absorbed, giving your muscles fast access to essential amino acids when they need them most. Used after training or across the day, ISO-FX helps support recovery and lean muscle maintenance as part of a consistent routine and resistance training.

How to use ISO-FX

Mix one scoop with 8 to 10 oz of water or milk. Use it post-workout, between meals, or any time you need to reach your daily protein target. It blends smoothly into shakes, smoothies, oatmeal, and recipes.

Frequently Asked Questions

What is the difference between whey isolate and whey concentrate?
Isolate is filtered to a higher protein purity with less fat, carbs, and lactose. Concentrate is less processed and typically lower in protein per scoop.

Is ISO-FX good for lactose sensitivity?
It is a low-lactose formula, so most people who are mildly sensitive to standard whey find it more comfortable. It is not lactose free.

When should I take whey isolate?
Post-workout is popular for fast amino acid delivery, but total daily protein matters most, so any time you need to reach your target works.

Can it help with fat loss?
A high-protein, low-calorie isolate can support a calorie-controlled plan by helping preserve lean muscle and support fullness. Results depend on your overall diet and training.

How many servings per tub?
Each 2lb tub provides a full run of daily servings. Check the label for the exact scoop count for your flavor.

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.

The new warning regulation also:

• Clarifies the roles and responsibilities of manufacturers and retailers in providing warnings
• Adds new “tailored” warnings that provide more specific information for certain kinds of exposures, products, and places
• Requires website warnings for products sold over the Internet for businesses that wish to comply with the “safe harbor" warning requirements
• Requires warnings in languages other than English in some cases for businesses that wish to comply with the “safe harbor” warning requirements
  
  For more information please visit Proposition 65

Domestic (US) orders

Orders are shipped from our fulfillment center in Woodinville, Washington.

Please allow 3 to 7 business days for us to process and ship your order. (due to a high volume of orders, there may be further delays) Orders placed after 1 pm PST will be processed the next business day. All orders are shipped via FedEx, UPS or USPS and international orders are shipped via DHL or USPS international. Please note we do not ship or process orders on the weekend unless for special holidays like Christmas, Valentine's Day, or Mother's Day.

FedEx, UPS and USPS Overnight shipping
Please note orders that are placed on Friday before 1 pm PST (4 pm EST) will be delivered on the next business day. The next business day from Friday would be Monday. Packages are delivered from Monday to Saturday (if Saturday delivery is selected).

Shipping to Canada

For orders going to Canada, tracking information will be valid for both USPS and Canada Post. Feel free to use the tracking number provided on both sites for an update on your order status once it ships.

We cannot be responsible for any customs restrictions, tariffs, or other regulations that may apply in countries outside of the United States. The responsibility is yours to check to see if your country allows the shipment of products you ordered (or wish to order). Any duties or taxes that may apply to your order are also your responsibility. 

If for whatever reason your order is seized by customs, we will not issue you a refund (minus shipping) unless all products are returned to us in the original condition per the return policy above. 

International shipments

We cannot be responsible for any customs restrictions, tariffs, or other regulations that may apply in countries outside of the United States. The responsibility is yours to check to see if your country allows the shipment of products you ordered (or wish to order). Any duties or taxes that may apply to your order are also your responsibility. 

If for whatever reason your order is seized by customs, we will not issue you a refund (minus shipping) unless all products are returned to us in the original condition per the return policy above. 

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

Customer is responsible to cover the return shipping costs and items must be returned (ship date) within 30 days of the original purchase in order to receive the full refund.

To start a return, you can contact us at sales@fxsupps.com. Items sent back to us without first requesting a return will not be accepted. You can always contact us for any return question at sales@fxsupps.com.

Change of address
The shipping address can only be changed if the order has not been fulfilled. If the order has been fulfilled, we advise reaching out to the shipping carrier for an alternate delivery address.

Order cancellation
Due to the fast nature of our supply chain and logistics, our warehouse and floral specialists begin working on your order right away. For this reason, we're unable to accept any order cancellations.

There's no obligation to buy a Subscription, nor is there any minimum number of months or commitment for Subscriptions.

Subscriptions Can't be Paused or Canceled within the week of subscription fulfillment which is your reoccurring order date.