🎉 Up to 70% Off Selected ItemsShop Sale
HomeStore

Esterol Ester-C®

Product image 1
Product image 2
Product image 3
Product image 4

Esterol Ester-C®

Allergy Research Group Esterol Ester-C®

Calcium Ascorbate with Bioflavonoids

A customized formulation of Ester-C® with bioflavonoids. Ester-C® is a patented nutritional product that contains ascorbic acid and calcium. This formulation is non-acidic and minimally irritating to the intestines. Esterol also provides 3 types of bioflavonoids - quercetin, rutin, and proanthocyanidins from grape seed extract. Ester-C® vitamin C is corn-source.

Ingredients

Serving Size: 2 Vegetarian Capsules Amount/Serving
Vitamin C (as Calcium ascorbate)
 1.35 g
Calcium (as Calcium Ascorbate)
 150 mg
Rutin 100 mg
Quercetin Dihydrate 50 mg
Grape Seed Extract (92% Proanthocyanidins)
 5 mg

Other Ingredients: Hydroxypropyl methylcellulose, magnesium stearate, silicon dioxide.

Suggested Use

As a dietary supplement, take 2 capsules daily with meals, or as directed by a healthcare practitioner.

Warning: If you are pregnant or lactating, have any health condition or are taking any medication, consult your healthcare practitioner before use.

Storage: Store in a cool, dry place, tightly capped, away from light. Keep out of the reach of children. Use only if safety seal is intact. Variations in product color may occur.

More Info

  • Ester-C® (calcium ascorbate, 1.35 g per 2 capsules): A unique, pH-neutral form of vitamin C with added metabolites that enhances uptake into white blood cells and prolongs retention for sustained biological activity.
  • Bioflavonoids (quercetin, rutin, grape seed extract): Provide additional antioxidant activity, helping stabilize vitamin C while contributing vascular, immune, and connective tissue benefits.
  • Buffered Formulation: Calcium ascorbate is gentler on the stomach and may reduce the risk of oxalate formation compared to ascorbic acid.
  • Enhanced Immune Cell Activity: Clinical studies show Ester-C® supports improved neutrophil and NK cell function, histamine metabolism, and white blood cell activity compared to regular vitamin C.
  • Adrenal and Connective Tissue Support: Vitamin C is concentrated in adrenal glands and plays a vital role in collagen synthesis and stress hormone production.

Ideal for individuals seeking a well-tolerated, highly bioavailable form of vitamin C to support immune, antioxidant, and tissue health, especially those sensitive to acidic forms or with increased vitamin C needs.

This formula combines 1.35 grams of buffered vitamin C with complementary bioflavonoids to mirror nature’s delivery system, enhancing cellular uptake and tolerability. It is free from common allergens and formulated for clinical efficacy.

Select Size
From $12.15

Original: $40.49

-70%
Esterol Ester-C®—

$40.49

$12.15

Product Information

Shipping & Returns

Description

Allergy Research Group Esterol Ester-C®

Calcium Ascorbate with Bioflavonoids

A customized formulation of Ester-C® with bioflavonoids. Ester-C® is a patented nutritional product that contains ascorbic acid and calcium. This formulation is non-acidic and minimally irritating to the intestines. Esterol also provides 3 types of bioflavonoids - quercetin, rutin, and proanthocyanidins from grape seed extract. Ester-C® vitamin C is corn-source.

Ingredients

Serving Size: 2 Vegetarian Capsules Amount/Serving
Vitamin C (as Calcium ascorbate)
 1.35 g
Calcium (as Calcium Ascorbate)
 150 mg
Rutin 100 mg
Quercetin Dihydrate 50 mg
Grape Seed Extract (92% Proanthocyanidins)
 5 mg

Other Ingredients: Hydroxypropyl methylcellulose, magnesium stearate, silicon dioxide.

Suggested Use

As a dietary supplement, take 2 capsules daily with meals, or as directed by a healthcare practitioner.

Warning: If you are pregnant or lactating, have any health condition or are taking any medication, consult your healthcare practitioner before use.

Storage: Store in a cool, dry place, tightly capped, away from light. Keep out of the reach of children. Use only if safety seal is intact. Variations in product color may occur.

More Info

  • Ester-C® (calcium ascorbate, 1.35 g per 2 capsules): A unique, pH-neutral form of vitamin C with added metabolites that enhances uptake into white blood cells and prolongs retention for sustained biological activity.
  • Bioflavonoids (quercetin, rutin, grape seed extract): Provide additional antioxidant activity, helping stabilize vitamin C while contributing vascular, immune, and connective tissue benefits.
  • Buffered Formulation: Calcium ascorbate is gentler on the stomach and may reduce the risk of oxalate formation compared to ascorbic acid.
  • Enhanced Immune Cell Activity: Clinical studies show Ester-C® supports improved neutrophil and NK cell function, histamine metabolism, and white blood cell activity compared to regular vitamin C.
  • Adrenal and Connective Tissue Support: Vitamin C is concentrated in adrenal glands and plays a vital role in collagen synthesis and stress hormone production.

Ideal for individuals seeking a well-tolerated, highly bioavailable form of vitamin C to support immune, antioxidant, and tissue health, especially those sensitive to acidic forms or with increased vitamin C needs.

This formula combines 1.35 grams of buffered vitamin C with complementary bioflavonoids to mirror nature’s delivery system, enhancing cellular uptake and tolerability. It is free from common allergens and formulated for clinical efficacy.