Ester-C Supreme

Vitamin C is a water-soluble antioxidant and one of the best-documented nutrients. Most mammals can produce vitamin C according to their needs, but the human body has lost this ability over the course of evolution, so an adequate daily intake of this vitamin is necessary to maintain good health.

Vitamin C is found in fruits and vegetables, but is easily destroyed by heat, cooking, processing and storage, and is rapidly eliminated from the body through urine.

Vitamin C levels can be inadequate in the presence of physical and mental stress, in the elderly, and in subjects with chronic conditions such as cardiovascular disease, asthma, arthritis, age-related eye disease and certain cancers.

Vitamin C is renowned for strengthen the immune system by supporting and improving white blood cell function. It is also essential for the formation of collagen, which is a building block of many tissues and a crucial component of skin rejuvenation.

Vitamin C also helps reduce the body's release of histamine, thus relieving allergic symptoms. There are many forms of vitamin C, of which ascorbic acid is the most basic.

Ester-C® brand calcium ascorbate is an appropriate choice for users looking for a clinically proven form of vitamin C that is gentler on the body than ascorbic acid.

Product information

Ester-C® is a unique, patented form of calcium ascorbate obtained through a water-based process in which ascorbic acid (ordinary vitamin C) is buffered with calcium.

The calcium in Ester-C® meets part of daily calcium requirements

Ester-C® contains active vitamin C metabolites, including L-threonate, which enhance cellular uptake and retention

Ester-C® is the only form of vitamin C proven to remain in immune system white blood cells for up to 24 hours

Less acidic and gentler on the stomach than ascorbic acid

Formula with added quercetin, a bioflavonoid and powerful antioxidant with anti-inflammatory and antihistaminic properties

Formula with added berry-derived bioflavonoids for improved vitamin C assimilation

Arabinogalactan is a type of polysaccharide that provides extra immune support in times of stress and during cold and flu season

Ester-C® is clinically proven to have a higher bioavailability and retention rate than other forms of vitamin C

This formula does not contain citrus ingredients for users who wish to avoid citrus fruits

The benefits of SISU

• Easy-to-swallow, fast-dissolving vegetarian capsule
• Suitable for vegans
• No ingredients that may be a source of gluten
• Manufacturing standards in line with Good Manufacturing Practice
• Proven potency and purity
• NPN approved