ARG Esterol Ester C - Delivers 1.35 g Vitamin C - Buffered Vitamin C with Bioflavonoids & Quercetin - Immune & Antioxidant Support - 200 Servings - 200 Capsules

★★★★★ 4.4 126 reviews

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Management number 237932780 Release Date 2026/07/11 List Price US$23.72 Model Number 237932780
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Allergy Research Group Esterol Ester C provides a buffered and well-tolerated form of vitamin C to support immune activity, antioxidant defenses and connective tissue health.* This formula offers calcium ascorbate alongside vitamin C metabolites to support absorption, cellular uptake and sustained activity in immune cells.* Two capsules provide 1.35 grams of vitamin C to help maintain daily nutritional balance and support seasonal wellness needs.* This formula also includes quercetin, rutin and grape seed extract to support antioxidant pathways and help stabilize vitamin C for optimal biological activity.* These bioflavonoids contribute additional support for vascular tissue, immune function and collagen-related processes.* Esterol Ester C is suitable for individuals seeking a non-acidic form of vitamin C appropriate for sensitive digestion and daily wellness routines.* For more than 45 years, Allergy Research Group has supported healthcare practitioners and their patients with the tools necessary to achieve the confidence that comes from great health. Our tireless dedication to creating clinically sound, evidence-based, condition-specific formulas using clean, hypoallergenic ingredients is unsurpassed—and it is why our supplements are so widely trusted and well tolerated by both practitioners and patients worldwide.

  • Buffered Vitamin C Support: Allergy Research Group Esterol Ester C provides a non acidic form of vitamin C to support immune resilience and antioxidant activity*
  • Bioflavonoid and Vascular Support: Includes quercetin, rutin and grape seed extract to support antioxidant pathways, tissue integrity and seasonal wellness*
  • Enhanced Uptake Formula: Delivers Ester C calcium ascorbate, a form studied for improved tolerance and cellular utilization compared to standard ascorbic acid*
  • Vegetarian Formulation: This supplement is vegetarian to meet unique dietary needs
  • Solutions Backed by Science: Allergy Research Group and its family of brands—Metabolic Maintenance, MethylPro, Nutricology and Optimox—have delivered trusted supplements for more than 45 years
Brand Allergy Research Group
Size 200 Count (Pack of 1)
Primary ingredient Vitamin C
Flavor Unflavored
Count per pack 200
Health concern Prenatal Health, Beauty Support
Label image Supplement Facts
Dosage Use as directed by your health care professional.
Product usage frequency Daily
Ingredients 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
Dietary method Vegetarian

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