3D ball-and-stick molecular model of an ester compound on a white background, representing buffered Vitamin C.

Ester-C

Also known as: Calcium Ascorbate, Esterified Vitamin C, Ascorbate Calcium, Ester-C Calcium, Buffered Vitamin C

Ester-C is a uniquely formulated version of vitamin C that boasts improved absorption and retention in the body compared to standard vitamin C. Originating from a proprietary process, Ester-C is buffered to be less acidic, making it gentler on the stomach and thus a preferred option for individuals with sensitive digestive systems. Its primary appeal lies in its ability to bolster the immune system, as vitamin C is a crucial nutrient in enhancing the body's natural defense mechanisms and helping ward off infections. Beyond immunity, Ester-C plays a role in the synthesis of collagen, assisting ...

Potential Side Effects

Side effects score: 2; Ester-C, a branded form of vitamin C, is generally well tolerated. However, potential side effects can include gastrointestinal discomfort, such as diarrhea, nausea, or stomach upset, especially at high doses. Although rare, allergic reactions may occur, leading to symptoms like rash, itching, or swelling. It is advisable to consult a healthcare professional before starting

Health Categories

View efficacy ratings for Ester-C across multiple health categories.

Research & Evidence

Our efficacy ratings are based on scientific research and clinical studies.

Related Supplements

Supplements commonly explored alongside Ester-C

Acerola Cherry
Acerola Cherry
Camu Camu
Camu Camu
Calcium Ascorbate
Calcium Ascorbate
Ascorbic Acid
Ascorbic Acid
Vitamin C
Vitamin C