Citric Acid

History of Citric Acid

Citric acid, a natural and potent organic acid, was first isolated from lemon juice by Carl Wilhelm Scheele in 1784. Its discovery was pivotal in the study of food chemistry and metabolism. Originally sourced from citrus fruits, the demand for citric acid led to the development of fermentation-based production using Aspergillus niger, a mold, in the early 20th century. 

This marked a significant advancement in industrial-scale production, making citric acid widely available and affordable. Its role in food preservation and flavor enhancement has been invaluable, extending to various applications in the supplement industry.

Scientific Makeup of Citric Acid

Citric acid is a weak organic acid with the chemical formula C6H8O7. It naturally occurs in citrus fruits and is a key intermediate in the citric acid (Krebs) cycle, essential for cell energy production.

Its unique properties, including its sour taste and preservative qualities, make it a versatile ingredient. Citric acid adjusts pH levels, enhances flavor, and preserves stability in supplements and food products.

Benefits of Citric Acid

In the context of supplements and food products, citric acid offers several benefits:

Flavor Enhancer

Citric acid enhances the taste of supplements by adding a refreshing and tangy flavor. This makes the accessories more enjoyable and palatable to many consumers.


By inhibiting microbial growth, citric acid acts as a natural preservative, extending the shelf life and freshness of various health products and supplements.

pH Adjuster

Citric acid effectively maintains and adjusts the acidity level in supplement formulations. This is crucial for ensuring the stability and effectiveness of the product.

Antioxidant Properties

The antioxidant properties of citric acid help protect the active ingredients in supplements from oxidation. This preservation of components ensures the supplement’s efficacy over time.

Combined with other supplement ingredients, citric acid contributes to products’ overall effectiveness and consumer appeal.

Forms of Consumption

Citric acid is incorporated into various supplement forms:

Safety and Dosages

Citric acid is generally recognized as safe (GRAS) when used in appropriate quantities. The acceptable intake varies based on the product and its application. It is advisable to follow regulatory guidelines and formulation standards.

Consulting with experts at Supplement Factory, a supplement manufacturing leader, is recommended for specific formulations.

Use and Legality in Various Regions

Citric acid is globally accepted and widely used in the food and supplement industry. Its use is regulated to ensure safety and quality in regions like the UK, EU, and US. The widespread acceptance of citric acid reflects its importance as a versatile and essential ingredient in the supplement industry.

At Supplement Factory, our expertise in incorporating ingredients like citric acid into supplement formulations ensures products of the highest quality. We understand the nuances of ingredient synergy and are equipped to help your brand develop superior supplements. 

For more information on our manufacturing services, contact us.