Pure Encapsulations Ester-C & Flavonoids – 180 Capsules

How Does Ester-C Differ from Standard Vitamin C?

Ester-C is a patented form of vitamin C containing calcium ascorbate and its metabolites, including threonate. Unlike standard ascorbic acid, Ester-C is pH-neutral and can be taken on an empty stomach without irritation. Studies indicate that Ester-C is absorbed more efficiently by white blood cells and retained in tissues longer than ascorbic acid, meaning a lower dose can provide sustained support. For individuals with sensitive digestion, Ester-C is a well tolerated option that still delivers the full benefits of vitamin C.

Key Benefits of Ester-C & Flavonoids

This supplement is formulated to support multiple aspects of wellness. The Ester-C form (calcium ascorbate) provides a non-acidic, gentle-on-the-stomach alternative to regular ascorbic acid. It is buffered with calcium, which may reduce digestive discomfort often associated with high-dose vitamin C. The addition of bioflavonoids—quercetin and rutin—helps bolster antioxidant defences and supports a healthy immune response. Research suggests that bioflavonoids can enhance the activity of vitamin C, creating a synergistic effect. Together, these ingredients promote vascular health by helping maintain the integrity of blood vessel walls and contribute to your body's natural antioxidant network.*

As part of a balanced wellness routine, taking Ester-C & Flavonoids may help reduce the impact of oxidative stress and support normal immune function. This product is ideal for those seeking a high-quality vitamin C supplement that combines enhanced bioavailability with complementary plant compounds.

What Is Vitamin C and Why Do You Need It?

Vitamin C is an essential water-soluble nutrient that must be obtained through diet or supplementation. It plays a vital role in supporting the immune system, neutralising free radicals as an antioxidant, and contributing to collagen synthesis for healthy skin and connective tissues. While citrus fruits and vegetables provide vitamin C, many people turn to supplements to ensure adequate daily intake. Pure Encapsulations Ester-C & Flavonoids offers a unique form of vitamin C—Ester-C—that is designed for enhanced absorption and retention in the body, making it a potent choice for daily immune and antioxidant support.

Types of Vitamin C Supplements

Vitamin C supplements come in several forms. Ascorbic acid is the most common and affordable, but it can be acidic and cause stomach upset in high doses. Sodium ascorbate is a buffered form that is easier on the stomach but contains sodium. Ester-C, as used in this product, is a buffered, metabolite-containing form that offers superior absorption and gentleness. Liposomal vitamin C is another advanced form that uses lipid encapsulation to enhance absorption, whilst it is often more expensive. Whole-food sources like acerola or camu camu provide naturally occurring vitamin C with additional phytonutrients. Pure Encapsulations Ester-C & Flavonoids stands out for its combination of Ester-C and targeted bioflavonoids, providing both enhanced absorption and additional antioxidant support.

Recommended Dosage and Safety

The suggested serving for Pure Encapsulations Ester-C & Flavonoids is 1 capsule daily, providing 500 mg of vitamin C (as Ester-C) and 750 mg of citrus bioflavonoid complex (including quercetin and rutin). Each bottle contains 180 servings. Vitamin C is water-soluble, so excess is excreted in urine, but doses above 2,000 mg per day may cause digestive upset. This product is safe for long-term uses. As with any supplement, consult your health care provider before starting a new regimen, especially if you are pregnant, nursing, or taking medication.

These statements have not been evaluated by the European Food Safety Authority. This product is not intended to diagnose, treat, , or prevent any disease.

Frequently Asked Questions

Is this supplement suitable for vegans?

Yes, Pure Encapsulations Ester-C & Flavonoids is vegan and made without any animal-derived ingredients. The capsules are vegetarian-friendly.

Does this product contain common allergens?

Pure Encapsulations is committed to purity. This supplement is free from gluten, soya, dairy, eggs, nuts, and artificial additives. It is also non-GMO.

Can I take this on an empty stomach?

Yes, because Ester-C is buffered and non-acidic, it is gentle on the stomach and can be taken without food if desired.

How does quercetin support immunity?

Quercetin is a flavonoid that supports the immune system by helping regulate histamine release and by acting as an antioxidant. It works synergistically with vitamin C to support overall immune health.