Ester-C 24-Hour Immune Support (1,000 mg, 120 Tablets) remains a cornerstone supplement for long-term cellular defense. This specific 120-count format is highly sought after for its cost-efficiency and convenience as a four-month supply. 

Product Profile


Company: American Health (the primary patent holder) and Nature’s Bounty (both are under the parent company Nestlé Health Science).
Form: Vegetarian coated tablets (also referred to as "VegTabs").
Quantity: 120 tablets per bottle (a 120-day supply).
Key Benefits: Provides "The Better Vitamin C®" that stays in your white blood cells for up to 24 hours, offering twice the retention of standard ascorbic acid. 


Core Ingredients (per tablet)


Vitamin C (as Ester-C® Calcium Ascorbate): 1,000 mg.
Calcium (as Ester-C® Calcium Ascorbate): 110 mg.
C-Sorb™ Citrus Bioflavonoid Complex: 102 mg to 200 mg (varies by specific regional formulation). This complex includes naturally occurring metabolites like Threonate, which facilitate rapid absorption and extended cellular retention.
Clean Label: Formulated without sugar, gluten, wheat, milk, lactose, or artificial colors and flavors. 


Usage Information


Adult Dosage: Take one (1) tablet daily, preferably with a meal.
Consistency: Because it is non-acidic and has a neutral pH, it is designed for comfortable every-day use without causing the gastric distress associated with acidic Vitamin C supplements. 


Safety and Quality


Stomach-Friendly: The unique water-based manufacturing process neutralizes the pH, making it gentle for individuals with sensitive stomachs.
Precautions: While generally safe, doses exceeding 2,000 mg daily may increase the risk of kidney stones or diarrhea. Consult a physician if you have a history of kidney issues or are taking medications that interact with calcium or vitamin C.