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.
