Endurance C
Endurance C
Endurance C

Endurance C

15 reviews
Potent Vitamin C Blend
  • Provides Antioxidant Support
  • Helps support the immune system
  • Helps reduce aches and soreness


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made in usa vegan no added sugars

Vitamin C is involved with many bodily functions: the formation of collagen, absorption of iron, and assisting in the proper function of the immune system. It also aids in wound healing and the maintenance of cartilage, bones, and teeth.

Endurance C provides you with three different types of vitamin C in optimal amounts.

How to Use

Maintenance dosage
3 capsules with meals daily.

Acute needs (illness)
Take 3 capsules two or three times daily at the onset of symptoms. Dosage can be increased to bowel tolerance for maximum benefits.


For long-duration exercise (3 hours +), take 1 capsule prior and 2 capsules afterwards for recovery benefits.


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Calcium Ascorbate – Unlike “regular” Vitamin C (ascorbic acid) which is extremely acidic and may cause gastric distress, calcium ascorbate—with a pH of 7.0-7.4—is commonly referred to as “neutral C,” buffered C,” or “non-acidic C”. While the compound is overwhelming comprised of vitamin C (90%), it also contains 92 mg of calcium (10%), so you get the benefits of that mineral as well.

Ascorbyl Palmitate – This is a highly bioavailable, non-acidic, fat-soluble form of Vitamin C that is able to reach specific areas of tissue that standard vitamin C cannot. Thus, ascorbyl palmitate is able to neutralize specific free radicals that water-soluble vitamin C can’t, while also protecting against the oxidation of lipids, a broad group of macronutrients that are heavily involved in a number of important bodily functions (e.g., hormone regulation, nerve impulse transmission, fat-soluble nutrient transport, and more).

Citrus Bioflavonoids – While not strictly vitamins, bioflavonoids have impressive “vitamin-like” properties, which is why this group of compounds was referred to as Vitamin P. Citrus fruits contain a number of bioflavonoids, such as diosmin, naringin, tangeretin, diosmetin, marirutin, neohesperidin, nobiletin and others. All these bioflavonoids work synergistically with vitamin C in supporting the immune system via their antioxidant properties. Citrus bioflavonoids also enhance circulation, reduce aches and soreness, and help support joint health.

Hesperidin 95% HPLC – A major bioflavonoid found primarily in lemons, oranges and tangerines, hesperidin not only possesses potent antioxidant properties for supporting strong immune system function, it can help blood vessels function better, thus promoting optimal circulatory and cardiovascular health. Additionally, hesperidin helps reduce aches and soreness, supports insulin sensitivity, and is also believed to help protect cognitive health.

Quercetin – An extremely versatile bioflavonoid obtained from a wide range of sources, including citrus fruits, apples, onions, and more, quercetin has extraordinary antioxidant properties, making it a top nutrient for immune system health. Quercetin possesses properties that strongly reduce aches and soreness, as well as helping to alleviate allergy symptoms. Additionally, quercetin is believed to be highly beneficial for brain and cardiovascular health, while also assisting in normalizing blood pressure and blood sugar. Lastly, quercetin and vitamin C work in tandem in optimizing each other’s absorption.

Rose Hips (Rosa canina) – A natural source of Vitamin C, rose hips are a rich source of antioxidant carotenoids and polyphenols. One of these is tiliroside, which has antioxidant properties and is also believed to assist in non-stimulant fat loss.

Endurance C
Supplement Facts
Serving Size: 3 capsules
Servings Per Container: 30
  Amount Per Serving % Daily Value*
Vitamin C (from Calcium Ascorbate and Ascrobyl Palmitate (Vitamin C Ester)) 800mg 890%
Calcium (from Calcium Ascorbate) 90mg 6%
Citrus Bioflavonoids 600mg
Hesperidin 500mg
Quercetin 180mg
Rose Hip Fruit (Rosa canina) 75mg
* The 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 not established.
Other Ingredients: Dextrin, Vegetable Hypromellose Capsules.

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.
Customer Reviews
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Would buy over and over!

Honestly just trying this product after switching from products like Airborne. I find it to be so much better.


I would purchase again!

I've added this to my daily vitamin intake and love this product.


I trust Hammer to offer a quality Vitamin C product

Having trusted Hammer products for years and years, I was so glad they finally came out with. Vitamin C product!


I will by this product again.

High quality vitamin c product. I take daily as part of my vitamin regiment.


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