Using kojic acid on your face: 5 things you need to know now!


How many of you are aware of the Filipino skin lightening beauty brand kojie San? maybe you’ve heard about their skin lightening lotion or cream or at least you might be aware of their most popular product the kojie san skin lightening soap which has gained widespread popularity worldwide over the years.

Kojie san face soap

Anyway, what makes their products effective and safe for skin lightening is the little ingredient contained in it, and that is kojic acid.

Where is kojic acid gotten from?

Kojic acid is an agent that is extracted from different types of fungi, especially the different strains of Aspergillus (a kind of fungus). It was first discovered in 1907 and was extracted from a strain of Aspergillus called Aspergillus oryzae grown on steamed rice.

The name kojic acid is taken from the Japanese term “koji,” meaning “steamed rice.” It is widely used in cosmetic and skincare products as a whitening and brightening agent.

The effect of kojic acid on the skin

Kojic acid is made from several different types of fungi, it is also a byproduct when certain foods ferment, including Japanese sake, soy sauce, and rice wine.

Kojic acid inhibits and prevents the formation of tyrosine, which is an amino acid that’s needed to produce melanin. Melanin is the pigment that affects our hair, skin, and eye color, the more melanin you have in certain parts of your body, the darker it will be.

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For instance, if you have more melanin in your hair it will be black if you have little to none you’d be a blondie.

The same goes for the eyes and skin. So when we talk about melanin, basically everyone has it, however, to varying extent.

So because kojic acid inhibits the production of melanin, it can have a lightening effect on the skin. It has the ability to really penetrate the layers of your skin and stop the production of melanin.

Kojic acid is usually sought out as a spot-fading treatment and is often considered a less-aggressive answer to hydroquinone. Caro white is practically the most infamous cosmetic product containing hydroquinone, I wrote a blog post about my experience with it a while back you should go check it out!

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Are you considering giving it a go? Here are

5 things you need to know about using kojic acid for skin lightening

For those who struggle with brown spots, hyperpigmentation, and stubborn post-breakout marks, in particular, kojic acid may be the answer to your pressing concerns. With questions buzzing over whether or not the ingredient works and is safe to use, I put together a comprehensive list of everything you need to know this acid before picking up a kojic acid-infused serum, cream, soap, or lotion to include in your skincare regimen.

Kojic acid for permanent skin whitening

1: Just like every other skin lightening agent out there, the result is NOT permanent.

Funny enough, we’ve heard people ask as these type of questions over and over again “how can I permanently lighten my skin”, “will kojie san or kojic acid permanently lighten up my skin?” as I said in a related blog post, there is no such thing as permanent skin lightening, so long as your body produces a certain amount of melanin in its healthy natural state, your skin will eventually revert back to that skin tone once you discontinue using what had caused you to get lighter in the first place.

This is relative, however. If you had gotten darker by the sun, as most people tend to do even when they use sunscreen at times. When you lighten up, you will stay that shade, unless you go back and take in another hit from the sun.

Using an exfoliate or a product that contains a good balance of AHAs and BHAs would also help you achieve similar results. We have a previous post about everything you need to know about AHAs and BHAs and how to use it. Go check it out.
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So after you stop the use of a kojic acid-infused product, your skin will eventually shift back to its natural tone. Using a product, however, with excess amounts of the ingredient can cause some serious irritation. So instead, you should only use kojic acid-infused products to fade discoloration that wasn’t originally on your skin, like age spots, sun spots, or those obnoxious post-breakout marks.

2: Kojic acid is not suitable for every skin and therefore should be used differently.

Those who have a tendency to get hyperpigmentation, whether caused by the sun, signs of aging, or post-breakout effects, can benefit from the ingredient. However, if your skin is on the more sensitive side, incorporate it in small doses starting with your nighttime treatments. A slight inflammation and sensitivity to it are to be expected in the beginning. So just as you would with your retinol or hydroquinone, you may want to seek out a product with a lower to milder concentration altogether if you continue to experience irritation.

Side effects of kojic acid

3: you can use different forms of kojic acid-infused product for different beauty routine.

Depending on your choice of treatment, kojic acid can be used on your skin in a variety of forms—from potent serums to one-and-done face masks, soaps or facial wash, to creams and toners. Using a mask will even out your skin tone rather than lighten it. Using kojic acid in a facial wash would act as a gentle alternative everyday treatment. If you prefer more of an overnight beauty treatment you could use creams that have been infused with kojic acid.

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When using powders, it should be mixed with either water or lotion, depending on the product instructions. Some products, like soaps and cleansers, are meant to be washed off immediately. Others, like creams and serums, are designed to be left on and absorbed into the skin. (However, kojic acid overall has relatively poor absorption rates below the surface of the skin.)

How to use kojic acids

Some products like face masks are designed to be used only on occasion. Creams and cleansers may be used daily if you wish.

4: there may be side effects of using kojic acid on your face.

Contact dermatitis is the most common side effect of kojic acid. It can manifest itself as redness, irritation, itchiness, rashes, swollen skin, or pain and discomfort. Contact dermatitis is most common in those with sensitive skin, or in individuals using a product with a higher concentration than 1 percent of kojic acid in a cosmetic product. Discontinue use if you’re reacting to a product with kojic acid in it.

Over time, long-term use of kojic acid may make your skin more susceptible to sunburn. Keep this in mind, and be particularly mindful of using sunscreen or wearing protective clothing

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5: kojic acid can help treat acne caused by bacteria!

In addition to skin-lightening effects, kojic acid also contains some antimicrobial properties. It may help fight off several common types of bacterial strains even in small dilutions. This can help treat acne caused by bacteria in the skin. It may also lighten scars from acne that haven’t faded yet.

Kojic acid also has antifungal properties. It’s even added to some antifungal products to increase their effectiveness. It may be useful in treating fungal infections of the skin like yeast infections, candidiasis, and ringworm or athlete’s foot. If soap containing kojic acid is used regularly, it may help prevent both bacterial and fungal infections on the body.

I bought a powdered kojic acid not to look ago this year, the product contained is 99% kojic acid.

To be honest, I have only used it a couple of times, and so far, so good. Since its powdered, I have to mix it up with a little water to make a paste which I apply to my face as a mask, I leave it on for about three minutes and then I wash it off completely. I usually follow it after with a serum and a moisturizer.

I have tried many other products containing kojic acid over the years, so I might make a review of them in the feature.

What are your thoughts on kojic acid, is it something that you’ve been considering trying out in the future? let us know


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Here are some of our Amazon.com selections!

Every single product recommended here have been personally curated by me and is found to be reputable. These are also affiliated links, meaning if you use them to make purchases I would earn a little stipend but at no extra cost to you.

Kojic Acid Powder (50 gram), Skin Lightening, Pure. $11.95

Rating: 4 out of 5.

Pure Kojic Acid Soap (Maximum Strength) for Dark Spots & Hyperpigmentation, Helps Even Skin Tone (Not for Sensitive Skin). $15.88

Rating: 5 out of 5.

Lactic Acid 50% Gel Peel with Kojic Acid and Bearberry & Licorice Root Extracts – Professional Grade Chemical Face Peel – Alpha Hydroxy Acid – 1 Bottle of 1 fl oz. $19.95

Rating: 4.5 out of 5.

Exfoliating Glycolic Face Mask & Scrub – Anti Aging, Acne & Blackhead Treatment for Brightening and Exfoliation with Turmeric & Vitamin C – Natural AHA Enzyme Exfoliant for Scars & Glowing Skin. $13.99

Rating: 5 out of 5.

5 Replies to “Using kojic acid on your face: 5 things you need to know now!”

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