Kojic Acid for Skin : Benefits & Everything to know
What is Kojic Acid?
Kojic acid is a by-product of fermented soya sauce and rice wine. The 58 fungal strains of the Aspergillus genus secrete it. Besides cosmetics, it is also used in PHArmaceuticals, agriculture, food, and chemical industries.
In skin care products, it acts as a bleaching agent. It lightens and brightens the skin by inhibiting melanin production. Let's understand the mechanism of Kojic acid in detail!
How does Kojic Acid work?
Unlike other skin-lightening agents, Kojic acid does not exfoliate the uppermost layer of skin. Instead, it inhibits the production of Tyrosinase, an enzyme responsible for the production of melanin production.
When skin is exposed to the sun & UV rays, the copper ion active site in Tyrosinase is highly reactive. It captures the copper ion to inhibit the activation of tyrosine and then further stops the production of melanin.
Advantages of Kojic Acid
Anti-aging outcomes / Antioxidant activity
Kojic acid is a whitening agent that diminishes dark spots, age spots, and sun damage. This overall reduction of dark spots and skin reversal impacts skin ageing.Moreover, its anti-melanogenic and antioxidant nature prevents skin ageing and tanning.
Antimicrobial & Antifungal possessions
Kojic acid and its derivatives are the main ingredients of antifungal products. It's known to treat yeast infection, ringworms, candidiasis, and athlete's foot.
In other words, it can be used to inhibit the growth of acne-causing microorganisms such as fungi, viruses, and bacteria. It is especially effective in treating fungal infections due to Fusarium oxysporum.
Reduces Scars
It is a whitening and lightening agent that reduces dark spots and scars. Regular application of it does not eliminate the scar, but it lightens the mark.
Reduces Hyperpigmentation
Kojic acid is a depigmenting agent; it reduces pigmentation by inhibiting the production of melanin. In the case of hyperpigmentation, it works wonders.Remember, only 1% and 4% concentration is safe to use.
Treat Melasma
Melasma is a common skin condition in which the skin develops brown and grey patches all over the skin. Its lightening properties evens out uneven skin tone.
Nowadays, skin care companies have started replacing hydroquinone with Kojic acid.
Disadvantages of Kojic Acid
Contact dermatitis (especially in sensitive skin)
Redness, swelling, irritation, swollen skin, and rashes are the common signs of contact dermatitis. Immediately stop the use of Kojic acid if you see any of these signs.
Long-term use of Kojic Acid may make skin more susceptible to sunburn
The action mechanism of Kojic acid inhibits melanin production, a pigment that protects skin from harmful UV rays and sun damage. The long-term use makes skin vulnerable to sun rays. For the same reason, people are advised not to avoid the sun after the application of Kojic acids and retinoids.
Using Kojic Acid on damaged or broken skin can result in cancer
Kojic acid increases the risk of skin cancer and tumour formation. Several researchers reported its carcinogenic nature. Asian and European markets have banned the use of Kojic acid due to its skin toxicity concerns.
Tips on using Kojic Acid for the Skin
Follow these tips to avoid mishaps:
- Right product - Choose the right products as the product should suit your skin.
- Visit a Dermatologist - See a Dermatologist right away if the acid doesn’t suit you.
- Be consistent - Remember consistency is the key. Follow a consistent routine.
- Sensitive areas - Avoid the sensitive areas as Kojic acid could be harsh sometimes.
- Discontinue - Discontinue if necessary.
Wrap Up
Kojic acid is a popular skin-lightening & brightening agent that shows significant results within a few weeks. At the same time, you have to take necessary precautions to avoid its adverse effects.