Product Description
Don't let a cold keep you down. PILLAR nailed recovery with the Triple Magnesium, and now they've brought that same rigor to immune support. Ultra Immune C delivers high-strength vitamin C, D3, and zinc in a tropical powder that's actually enjoyable — so staying consistent isn't a chore.
Hard training temporarily suppresses your immune system. Add travel, cold weather, and reduced sunlight and you've got a recipe for missed training days. Ultra Immune C targets that window with three nutrients athletes deplete faster than anyone else.
Three Nutrients, One Job: Keep You Training
High-Dose Vitamin C for Front-Line Defense Your body can't make vitamin C, and training burns through it fast. Each scoop delivers 1,000 mg to keep your immune system's first line of defense stocked.
Vitamin D3 to Close the Winter Gap Less sunlight means lower vitamin D — one of the most direct drivers of increased infection risk. Each serving delivers 1,000 IU of D3 to keep your immune response functioning when you need it most.
Zinc to Keep Immune Cells Firing Zinc mobilizes the immune cells that fight off illness. Training depletes it quickly, and a shortfall slows your response at exactly the wrong time. Ultra Immune C delivers 15 mg per serving.
How to Use PILLAR Ultra Immune C
Daily Dose: Mix one scoop (5g) with water or juice. Vitamin C and zinc are both water-soluble — fine on an empty stomach.
Timing: Avoid dairy at the same time; it interferes with zinc absorption.
Pro Tip: Take at the first sign of illness for the best shot at reducing duration and severity. Many pro athletes also cycle onto it during peak training blocks as a preventive measure.
Stop losing training days to something preventable. Ultra Immune C is Informed Sport Certified and keeps your immune system ready when your training load pushes it hardest.
- Gluten free
- Vegan
- Nut free
- Sport Tested: Informed Sport
Supplement Facts
Single Serving
Serving Size: 1 Packet
Serving Per Container: 1
| Amount Per Serving | ||
|---|---|---|
| % Daily Value* | ||
| Calories 10 | ** | |
| Total Carbohydrates 3g | ** | |
| Vitamin C (as Ascorbic Acid) 1000mg | ** | |
| Vitamin D (as Cholecalciferol) 25mcg | ** | |
| Riboflavin (as Riboflavin 5-phosphate) 15mg | ** | |
| Zinc (as Zinc Gluconate) 15mg | ** | |
| Beet (Beta vulgaris) Root Powder 10mg | ** | |
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
** Daily Value (DV) not established
Always Happy Promise: Don't like a product? Tell us within 30 days of receipt and we'll make it right and make you happy. Here at The Feed, we want you to love your experience and the sports nutrition products you purchase. If, for any reason, you are not satisfied with your nutrition specific purchase, tell us.
We do not accept returns on food items that have been opened, but we will issue a store credit if you are unsatisfied. In the event of a return, you must first contact us before sending back a return shipment.
Consumable products over $40 receive a 50% store credit. This includes specialty nutrition products such as ketones or supplements/vitamins.
PILLAR Performance Ultra Immune C FAQ's
Everything you need to know before getting started.
Take it at the very first sign of illness — that's when it can have the greatest impact on reducing both the length and severity of symptoms. Many athletes also take it daily during peak training blocks or travel-heavy periods as a preventive measure when immune function is most at risk.
Heavy training temporarily suppresses immune function — a well-documented response to physical stress sometimes called the "open window" effect. Vitamin C, D3, and zinc each deplete faster in athletes than in sedentary individuals, making supplementation especially relevant during high training load periods.
Yes. Ultra Immune C is Informed Sport Certified, meaning every batch is third-party tested for substances banned in sport. It carries the same certification standard used by most professional sports organizations.
It's a light tropical-flavored powder sweetened with stevia. Athletes consistently cite the taste as one of the reasons they stay consistent with it — it mixes easily with water or juice and doesn't taste like a supplement.