The Vitabase Advantage
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Availability: In stock as of 06/26/2025
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Technical information
Ingredient list
| Ingredient | Amount |
| Vitamin C (from Ester-C® calcium ascorbate blend) | 619 mg |
| Calcium (from Ester-C® calcium ascorbate blend) | 68 mg |
| Threonic acid (from Ester-C® calcium ascorbate blend) | 7 mg |
| Quercetin | 50 mg |
| Rutin | 100 mg |
Other ingredients: vegetarian capsule (cellulose, water), ascorbyl palmitate
Recommended use
As a dietary supplement, take 1 capsule, 1-2 times daily, with or between meals.
Serving size: 1-2
Days Supply: 45 - 90
Cost Per Day: $0.29
Product Categories: Pure Encapsulations, Antioxidants, Blood pressure, Cellular, Circulatory, General / Foundational Health, Heart, Herbs, Immune, Vitamins & Minerals
UPC: 766298016689
Product Information
Why take this product?
- Supports optimal immune system health.
- Promotes healthy vascular function and integrity.
- Features a highly absorbable, enhanced-retention form of vitamin C.
- Includes quercetin and rutin to work in synergy with vitamin C.
- Crafted with premium vegan ingredients and supported by credible scientific research.
How it works
Ester-C® & Flavonoids is a unique supplement designed to support overall immune health, cellular function, and blood vessel integrity. This advanced formula combines the non-acidic, water-soluble form of vitamin C, known as Ester-C®, with powerful flavonoids like quercetin and rutin. Ester-C® is a premium, calcium ascorbate-based vitamin C that offers superior bioavailability compared to traditional ascorbic acid, making it an ideal choice for those looking to maintain healthy immune function and promote long-term wellness.
Vitamin C plays a crucial role in the body’s defense system, and studies have shown that Ester-C® helps to increase the concentration of vitamin C in white blood cells, ensuring optimal immune support. Unlike standard vitamin C, which may only offer short-term benefits, Ester-C® provides sustained levels of vitamin C that remain elevated for up to 24 hours, enhancing immune protection throughout the day. This makes it an excellent option for those seeking continuous, reliable immune support.
In addition to the vitamin C benefits, the inclusion of flavonoids like quercetin and rutin boosts the product’s effectiveness by promoting overall health in complementary ways. Quercetin is a powerful antioxidant that helps maintain healthy mast cell function, regulate leukotriene and prostaglandin metabolism, and support the body’s natural inflammatory response. Meanwhile, rutin, a potent flavonoid, supports blood vessel integrity and cellular health, contributing to the body’s ability to repair and maintain healthy tissues and organs.
Whether you’re looking to bolster your immune system, support healthy cell function, or maintain cardiovascular wellness, Ester-C® & Flavonoids provides a comprehensive approach to optimizing your health. This supplement is a great choice for individuals looking for a natural, well-rounded solution to support their overall well-being, with the added benefit of promoting long-lasting vitamin C absorption and bioavailability.
