Kojic acid is a naturally occurring compound that is produced by a type of fungus called Aspergillus oryzae. It is also found in some foods, such as sake, soy sauce, and tempeh. Kojic acid has been used for centuries in traditional Asian medicine for a variety of purposes, including skin lightening, anti-aging, and antibacterial.
Kojic acid has tyrosinase inhibiting properties that help to block the production of melanin, the pigment that gives color to the skin, hair, and eyes, it is commonly used in skincare products to treat hyperpigmentation and even out skin tone.
In recent years, kojic acid has become increasingly popular as a skin care ingredient. It is a safe and effective way to lighten the skin and reduce the appearance of hyperpigmentation, such as age spots, melasma, and freckles. Kojic acid also has anti-inflammatory and antioxidant properties, which can help to improve the overall health and appearance of the skin.
One of the benefits of kojic acid is that it is generally considered to be safe and well-tolerated, even for people with sensitive skin. It is also stable in a wide range of pH levels, meaning that it can be used in a variety of formulations without losing its efficacy.
In addition to its tyrosinase inhibiting properties, kojic acid has also been shown to have antioxidant and anti-inflammatory effects, which can help to protect the skin from environmental stressors and reduce inflammation.
Kojic acid is available in a variety of forms, including creams, lotions, serums, and soaps. It can also be taken orally as a supplement. When using kojic acid, it is important to start with a low concentration and gradually increase the concentration as needed. It is also important to use a sunscreen with an SPF of 30 or higher every day, even on cloudy days.
Here are some additional tips for beauty professionals and estheticians who are using kojic acid with their clients:
- Start with a low concentration of kojic acid and gradually increase the concentration as needed.
- Use kojic acid only as directed.
- Avoid using kojic acid on open wounds or irritated skin.
- Use a sunscreen with an SPF of 30 or higher every day, even on cloudy days.
- Wear protective clothing when you are outdoors.
- Monitor your skin for any changes, such as redness, irritation, or blistering.
- If you experience any side effects, stop using kojic acid and talk to your doctor or dermatologist.
To ensure that the client does not have an allergic reaction or sensitivity to kojic acid, it is important to conduct a patch test before using any skincare products containing this ingredient, just as with any other skincare product or ingredient.