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Kojic acid is a popular skincare ingredient in traditional Japanese beauty treatments for centuries. It effectively reduces the appearance of dark spots and hyperpigmentation, resulting in a brighter and more even complexion.


Kojic acid is a popular ingredient in skincare products in Asia, particularly in Japan and other East Asian countries. Kojic acid is a traditional skin-lightening agent in Japan, where it has been used for centuries to improve the appearance of age spots, and other forms of hyperpigmentation.


The concentration of Kojic Acid in skincare products can vary, but it is usually present in concentrations of 1% or less.

Who Should Use It

Kojic acid may be suitable for individuals who are looking to improve the appearance of hyperpigmentation, dark spots and patches, and post-inflammatory hyperpigmentation. It can be used by individuals of all skin types and phototypes, but it may be particularly beneficial for those with darker skin tones. Kojic acid can also be used as a preventative measure for individuals who are at risk of developing hyperpigmentation, such as those who spend a lot of time in the sun or who have a family history of hyperpigmentation.

Can Be Used In Combination With

Kojic Acid works well in combination with other ingredients, including SOD, Ferulic Acid, Niacinamide, and Arbutin.

How Often Can You Use It

The frequency of use depends on the individual's skin type and conditions. It can be used daily in the morning and/or in the evening.

Don't Use It If

As with any skincare ingredient, some individuals may be more sensitive or allergic to kojic acid than others. In general, individuals who have a known allergy or sensitivity to kojic acid or any of its derivatives should avoid using products containing it. It is also important to note that some individuals may be more prone to skin irritation or adverse reactions than others, particularly those with sensitive skin. In the absence of recommendations, arbutin should not be used by pregnant or lactating women.

It is always recommended to test products on a small skin area before using on the face.

Origins of the Ingredient

Kojic acid is a naturally occurring substance that is derived from certain species of fungi and mushrooms. It was first discovered in Japan in 1989 and has since been widely used in cosmetics, particularly in skin lightening products. The process of extracting kojic acid from the fungi involves the use of fermentation and filtration techniques. It is an organic molecule that is a derivative of a type of amino acid called tyrosine. Kojic acid has gained popularity in the cosmetic industry due to its ability to regulate melanin production in the skin and even out the complexion. Universkin offers a synthetic and pure kojic acid.

Chemical Composition

Kojic acid is a natural compound that belongs to the class of organic compounds known as pyranones. Kojic acid is derived from a type of fungus called Aspergillus oryzae, which is commonly used in the production of fermented foods like soy sauce and miso. It is a white or cream-colored crystalline powder that is soluble in water and alcohol. It can also be obtained by chemical synthesis. It is a white or cream-colored crystalline powder.

Mechanism of Action

Kojic acid works by inhibiting the activity of tyrosinase, the enzyme responsible for the production of melanin in the skin. By reducing the production of melanin, kojic acid helps to lighten and even out the complexion.

It is important to note that while kojic acid can be effective in reducing hyperpigmentation and even out the skin tone, it can also be irritating to some people, especially those with sensitive skin. Therefore, it is important to use kojic acid products with caution.


Kojic acid is known for its ability to regulate melanin production in the skin, which can help to even out the complexion and reduce the appearance of pigment spots, like age brown spots, UV-related dark spots, and more. It is often used in skincare products aimed at addressing hyperpigmentation and uneven skin tone.


Kojic acid is a stable ingredient.

In conclusion, Kojic Acid is a highly effective ingredient for regulating melanin production and even skin complexion but it is best to avoid it on sensitive and reactive skin.