Kojic Acid Soap: Everything You Need To Know

Will kojic acid soap work for you? An easy-to-ready guide on what the soap does and doesn’t do, who should and shouldn’t use the soap, side effects, safety and information on how to use it to see faster results.

What is kojic acid soap?

Kojic acid soap or sometimes called “kojic soap” is made of active ingredient called kojic acid, a by-product of Sake (Japanese rice wine.) In 1989, Japanese women discovered that kojic acid have the ability to make their skin look lighter.

How kojic soap works:

The soap works by aggressively exfoliating the top layer of the skin to reveal a much lighter and even skin underneath. By removing dead skin cells, kojic acid will then penetrate the skin deeper, which will make the skin look lighter and even-toned.

Will kojic acid soap work for me?

Kojic acid soap is a very powerful soap that can lighten skin tone and remove dark spots in the body. I’ve used it myself many times and it has always worked for my skin problems.

However, before you buy one, you may want to what I wrote below so that you can give yourself an idea on whether it will work for you or not.

What kojic acid soap does:

  • Evens skin tone.
  • Lightens skin.
  • Helps lighten medium, dark to black skin.
  • Helps remove acne/pimples and acne scars.
  • Removes hyper pigmentation.
  • Lightens the appearance of melasma.
  • Lightens the appearance of dark spots in the inner thighs, underarms, knees, knuckles.
  • Gets rid of acne scars.
  • Exfoliates and deeply cleanses the skin to get rid of blackheads.
  • Gives a natural-looking fair skin.
  • Works on black skin.
  • Removes eczema scars
  • Gets rid of strawberry legs

What kojic soap doesn’t do:

  • Doesn’t give a “bleached-looking skin.”
  • Doesn’t remove stretch marks.
  • Does not contain hydroquinone
  • Lighten lips
  • Doesn’t permanently lighten skin. Contrary to what you’ve read or heard before, the soap (and no skin lightening products) can permanently lighten the skin. Your skin will return back to its natural tone when you stopped using the product.

Where you can and cannot use kojic acid soap:

The soap can be used on face (except eyes, lips and mouth) and body (except nipples, genitals, anal and other sensitive areas).

Please DO NOT use the soap on the areas above as it’s harmful when ingested. In addition, it will cause severe burning and irritation if it’s used on sensitive areas.

Who should use kojic acid soap:

If you’re searching for products that can get rid of dark spots, uneven skin tone or if you just want to lighten your skin, then kojic soap is right for you. This is a very powerful soap that delivers results.

Who should NOT use this soap:

  • Individuals who stay under too much sunlight should not use this soap at all. The reason for this is because this soap contains kojic acid, a very powerful skin lightening ingredient that can produce adverse effect when used under direct sunlight. Note that if you plan on using any kind of lightening products (soaps, creams, toner, etc.) you should not stay under the sun anyway.
  • Also, if you’re the kind of person who wants to see results in about 1-4 weeks, then this soap (and any other products that promises an even skin tone) is not for you. Why? Because it might take sometime before you see any results on your skin especially if you have medium to dark skin. However, keep in mind that there are some people who would see results earlier than most of us.
  • Pregnant or breastfeeding women
  • Do not use this soap if you have super sensitive skin.

Side effects of using kojic acid soap:

Please note that all of the side effects listed below will not be experienced by everyone since we all have different skin types. Also, these side effects might last between 1-3 weeks depending on your skin sensitivity.

  • Redness
  • Itchiness (use a heavy cream or lotion to prevent this from happening)
  •  “Tight Feeling”
  • Breakout (happens most of the time if you’re acne-prone)
  • Dry skin (use a heavy lotion or cream)
  •  Peeling
  • Burning/Tingling Sensation

Note: Don’t panic if you experience these side effects because it will eventually go away. It’s temporary.


Is kojic acid soap safe?

According to this safety assessment report, kojic acid soap is safe to use in cosmetics.

Is kojic soap safe for pregnant or breastfeeding women?

Pregnant or breastfeeding women should not use kojic acid soap. It’s too strong.

Does kojic acid cause cancer?

There’s no indication that kojic acid causes cancer as of this writing. According to this report, kojic acid is safe to use within certain levels.

Real vs Fake Kojic Acid Soap:

Over the years, kojic acid soap became really popular due to to its effectiveness. Unfortunately, due to its popularity, a lot of fake soaps have been circulating the market.

Here are some things that you can do to make sure that you’re buying a real kojic soap:

  • ALWAYS buy directly from the source. For example, if you’re thinking about buying Marie France Kojic Acid Soap, then I would go directly to their site rather than buying it off on Amazon or other marketplace.
  • Buy from a reputable seller. If you still want to buy from Amazon or eBay, then make sure that you’re buying from a reputable seller. Check their feedback first.
  • Avoid buying unlabeled kojic soaps. Most of these are just plain soaps with orange color in it.
  • Go to the brand’s official social media page or website and ask if the seller where you bought the soap from is an authorized distributor.
  • Examine the overall appearance of the soap. Go to the brand’s official site or social media page and compare the soap that you bought to the pictures of the soap posted on their site. If you notice any difference, then contact the brand first. Brands do change their packaging every few years for marketing purposes.

Common Problems:

  • Kojic soap doesn’t work – you have to give the soap about 8 weeks before you see results. You have to allow kojic acid to penetrate your skin before seeing results.
  • Burning/itching feeling – use the soap less often and use a heavy moisturizer afterwards.

How to use your kojic acid soap to see faster results:

Step #1:

Always wet your face with warm (NOT hot) water. It’s always better to use your kojic soap when your pores are open (warm water opens pores) so that it will unclog it. Wash your face like how you would normally wash it with a regular soap but be aware of the timeframe I listed below.

First Week:

If this is your first time using a kojic soap, then you should only use it once a day for no more than 20 seconds. You have to let your skin get used to the kojic acid. Leaving the soap on your skin for more than the time stated above might cause redness and irritation.

Second Week:

You can now use it twice a day for no more than 20 seconds each time.

Third Week and so on:

It’s now ok to leave it on for 1-2 minutes and use it twice daily.

Sensitive combination skin:

For those who have sensitive/combination type of skin, you may feel some kind of “tingling sensation.” In addition, micro peeling will occur. This is a good sign. Whenever the skin peels, it means that it’s removing the dead skin cells and replacing it with a brand new one so that it’s going to look younger, whiter and smoother.

Step #2 (this is an important step):

Wash your face with very cold water for about 2 minutes. Why is this important? Simply because since you opened your pores with warm water, you now have to close it with cold water. I noticed that when I finish washing my face with cold water, my pores are less visible and my skin feels a lot smoother. In addition, there’s less peeling. Maybe it’s just my skin but you should try it to and see what happens.

Step #3:

Dry your face and apply a heavy moisturizer – preferably a heavy skin whitening cream for your face and a whitening lotion for your body. Please note that kojic soap causes skin peeling. Yes, that’s that “dry skin” that you’re seeing. Don’t worry as it’s not really “drying” your skin, it’s actually peeling it to remove the dead skin so that kojic acid can penetrate your skin deeper. It also helps give you that smooth and radiant-looking skin.

IMPORTANT TO KNOW: If you plan on using another skin lightening product (creams, serums, lotion) while using kojic acid soap, it’s better to avoid a product that contains kojic acid. For example, do not use kojic acid lotion with kojic acid soap because this will create too much exfoliation. It’s better to stick with another active ingredient like alpha arbutin or niacinamide while using the soap.

When you’ll see results:

Results vary depending on your skin type and how fast your skin adapts to the active ingredients. However, it normally takes an average of 8 weeks before you see results.

Do’s and Don’ts:

  • Don’t stay under the sun.
  • Avoid rubbing the skin if it’s itchy (add more moisturizer is the solution to itchy skin).
  • See recommended usage time and don’t leave the soap longer than the time frame listed below.
  • Do buy a heavy moisturizer before using the soap.
  • Don’t use on broken skin.

Best kojic acid soaps for your skin tone:

Medium to dark skin tones: If you have a medium to dark skin tone like myself, I can assure you that very few brands of kojic acid soaps will work for you. Why? It’s because we have more melanin on our skin compared to our light skin counterparts. What you need to do is to use a kojic soap that’s specifically made for darker skin color.

Light to Fair skin tones: For those with light or fair skin, you can use the soaps below but be warned that they may be too strong for you. You have to be very careful using these brands. The good thing is, you’ll probably see results faster compared to people with darker skin. Lucky duck!

#1. Marie France Kojic Soap: 

Best for skin tones: medium, dark, black

kojic acid soap

This is what I’m currently using. So far, it has exceeded my expectation. Like what I said, I’ve tried so many different brands of kojic soap but this brand is the strongest by far. I’m currently using it on my butt, bikini and underarm area every day.

In addition, this kojic soap is made specifically for medium to dark skin tones. I have many African-american (black), Indian and Hispanic friends who swear by this soap. Most of them use it to get rid of dark spots and hyper pigmentation and it works for them. If you are under this skin tone category, then you’re lucky.

Warning: This is also a very strong lightening soap. The soap box says “maximum strength” and they’re right – it’s maximum strength. I’ve used it on my face before and one of my co-workers asked me, “why is your face so much whiter that the rest of your body?” That was funny but that’s when I realized that it really works when it comes to lightening the skin.


#2. Diana Stalder

kojic acid soap

Best for skin tones: Fair to Medium

I used this soap for maybe six months. This has kojic acid and papaya extract in it. It did help lighten my skin but I felt that it’s kinda slow so I decided to try a different brand.







#3. Likas Papaya

kojic acid soap

Best for skin tones: Fair

I remember using this soap when I was in 6th grade. Back then, I had severe acne and one of my friends who had used this brand told me to try it myself. Unfortunately, it broke my skin out ever more! I know that my skin type (sensitive) has something to do with it as well. We didn’t have air conditioner when I was growing up so it was hot. I stopped using this soap after a few days.



Common kojic soap ingredients:

Kojic acid, Papaya extract, Glycerine, Virgin Coconut Oil, Aloe Vera, Orange scent and Color

Questions and Answers:

  • Who can use kojic acid soap?

Anyone can use it, however, people who stay under the sun should refrain from using this soap.

  • Can I use it on my areolas?

No. I would not suggest to use a kojic soap in this very sensitive area. It’s way too strong.

  • How long before I see results?

It depends on your skin. Results vary individually, therefore, no one can tell how long before you’ll see its lightening effect. However, this particular soap has to be used every single day (preferably twice a day) to see maximum results.

  • Can I use kojic soap on my underarms or inner thighs?

Absolutely. However, please be careful when using it in your inner thighs as you do not want the soap so be in your intimate part.

  • Once I achieve my desired results, can I stop using it?

I wouldn’t suggest to completely stop using it. What I would do is to use it as a maintenance. For example, if you’re using it 2x a day, everyday, then you should just use it 2-3 times a week for maintenance. Remember that this is a topical skin whitening product and the result isn’t permanent.

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Can we stop using this soap after we get a desire colour?


Hello. I’m Indian. Due to a lot of exposure to sun during my school days. My skin became literally dark. It was black in color. My hands n legs are wheatish only my face was very dark. I started using Marie France kojic soap from November 2016. It removed all my dark dead skin n I saw my new skin with 5-6shades lighter but it was not matching my hands n legs skin tone. Later I realised u suggested to use it with whitening cream post facewash. So I started to use with whitening cream. But my concern is my… Read more »


Hi I just wanted to ask what should I do regarding avoiding the sun after using the soap ? Cuz I go to school and Im going to start using the soap on the drk spots on my face soon ! So should I use it only at night ?……






Yes, theres some in mercury drug


I live in Delhi, India. The sun’s cruel here. But my acne scars brought me to your page. I really want to get rid of them. Do you recommend I use this soap? (The temperatures are as hight as 49 degrees during summers.)

Hi! Im using Iwhite Korea products and I recently bought Kojie San, been using it for 3 days now. So below is my routine in order and I would like to know if theyre just okay on my face.

– Kojie San
– Iwhite Facial Wash
– Ponds Toner
– Iwhite water based moisturizer
– Iwhite Facial Cream SPF15
– Iwhite BB Cream

Im doing the same routine before sleeping except the Facial and BB cream. 2-3 times a week I use the 2-Minute Miracle Wash Off Mask to exfoliate. Im using IwhiteKorea because most of the ingredients are organic. Hope you answers. Thanks!


Hi… I have been using 4% hydroquinone lotion to lighten up my acne marks and so far result has been great but quite slow. I just started using Vitamin C serum (with ferulic acid) but so far no significant improvement. Im planning to use glycolic acid (AHA) cleanser & toner for intensive exfoliation & gonna use 2-3 times a week. Im expecting slight peeling as part of d process. Right now i wanna up my game to speed up d whole process by using Kojic Acid + Gluthatione Papaya soup. Is this gonna be too much?? I do not desire… Read more »


umagat gabi lang po ba ang paggamit ng kojie san soap?


Hello Taylor,

I have just ordered a packet of Marie france soap and I am expecting it to arrive in about a month.
If I use the Marie France soap for at least one year every single day, how many shades am i expected to lighten?
my natural skin tone is a medium to light olive. My body is actually a naturally light olive, although my abdomen and butt are darker than the rest of my body.


You cannot expect a miraculous change.i have used marie france kojic acid soap for 6 months but it just gave me maybe a shade lighter and its a way expensive too.


Hii I have suffered from acne for almost 4yrs.i still suffer from acne and it has left me with lots and lost of scaring. Like both my jaws,chin are covered in acne scars. I have tried everything nothing seems to be working.i have stopped using everything. Just water and sugar to exfoliate.my acne has dried up now I’m left with aloooot of scaring Can I use kojic soap to treat my acne and acne scars? Do u think it’s safe for me? Please help.


Hey Taylor. After reading your blog I purchased Marie france kojic soap. Results are amazing. Thanks to you. Now I purchased 3rd soap I see this is modified one. Yes, Marie France kojic acid soap is modified they have added alovera extract to it. Now I don’t see the dead skin cells/micropeeling skin after washing my face with new soap. Micropeeling is very low. Do you think, this new one will work like old one? Please reply.


Hey Taylor, I read your blog early this year and started using Marie France kojic acid soap. Results are amazing. I can’t even express the way I am looking. Recently I received 3rd box soap. I see its been modified. Alovera extract has been added. Micro peeling is not much by using this modified soap. Do you think will this new one works same as old one?


Hi! can you suggest what are the best face moisturizers to use after washing your face with kojie san/kojic acid?


My face and neck are dark but the rest of my body is light skinned. I don’t know what happened. When I was younger my face was light skinned but as I’ve gotten older my face has gotten darker… Not sure why… I don’t really spend time in the sun and I live in the UK where it’s hardly sunny lol. I’ve just ordered some kojic acid soap from a philipino store in London… let’s see what happens. You got any advice for someone like me? Your article was very informative thank you x


Hii am actually thinking about buying the soap. Could u please tell me the name of the Philippine shop. I leave in london. Thanks


1st time using this soap. Can I use nivea lotion after using the soap on my face or does it have to be a whitening lotion?


Is it okey to use kojic soap 3 times a day ?


Hi I am thinking of using this soap as a few years ago I had a chemical burn on my face leaving a scar this happened with hair removal cream which had left a darkened scar on my face
I have been trying to shrink this by using oils, papaya soap even micro needling
Would this work for this or is my skin damaged?


Does it really works?


Can I use it on my whole body?


Which form of kojic acid gives you the better and quicker results? I mean the “kojic acid soap” or a “kojic acid cream”..
And did u ever try the kojic acid cream?

Thank you

Hi i am very faired skinned but have very dark neck and under arms I have been using Kojic acid soap for almost 6 months now Still no results on my neck and armpits but my face VERY NICE because of the kojic acid soap gives me a glow. Can you help recommend something for my neck and armpits PLEASE. Thank you


using kojie san soap want to
know what cream should apply for faster result..skin oily and dull..want my skin two sahdes better..is it possble

I used this profuct for three days and i was directed to use it for 5-10 minutes. I am dark and i stay under the sun for a long time.. After two days my fave started peeling and its redden some part of my face.. I stoppped using it but how do i get rid of the peels


Am using veet gold carrot lighting lotion with crusader medicated shop. And my knuckles are very black. Now i want to know how i can get rid of those black knuckles with kojic acid. So what do i use? The shop or the cream


Hello dear
Did you try the kojie San soap with that Japanese woman face on the white box? Which is more effective?


How is belo intensive whitening soap???please tell


Where can i buy the marie france soap?

I cant find an original dealer who sells Kojie san or Marie france to Asia .. Any help? Ebay link ?


Thanks Taylor
I have used it for over 3 years now though I stopped at some points to try other products but had to go back to it because nothing else seemed to be working for me

It contains clobetasol propionate(visible difference cream)

And yes I have a very sensitive skin

Thanks for your reply


Hi, Thanks for this, its educative and enlightening, but please I have questions for you. Presently I am using Fair and white(so white) brightening oil with vitamin E with the fair and white so white soap, its OK for me but I think it’s not really bringing out the white shade of fairness that I want though I am naturally fair, I want to change my creame to a cream that can give me a bit of that whitening look, what do you advise? Then secondly I suffered from pimples and acne for over 5 years or more, used lots… Read more »


Hi, Taylor I was wondering how often you use the soap on your butt, bikini, and underarms? Also is it safe to use armor hammer deodorant on my underarms after I wash with the Kojic soap?


Hi, I’ve been using the kojie san soap for about 4 days now. I’m using it on darker areas such as knees, elbows, neck, inner thighs etc. Sometimes the soap drips down my leg and I’m worried that it will lighten random parts of my leg. I thought about using it all over my body just in case but then the already lightened parts of body will become even lighter and still end up looking uneven. What do you suggest?


Im light coloured skin person. However i ve used hydroquine cream for some time and it has darken my foot skins.
Could you please advise me if this soap or cream may be able to restore my skin.
Appreciate for you advice.

Look forward to hear from your office.

Where can I buy the marie france brand of kojic acid. Is it available in supermarkets or only at online?


Hi. Love ur blogs. I’m currently using ORIGINAL Kojic Acid & Glutathione Dual Whitening/Bleaching Soap 120 g. My question is is it safe for me to use any bleaching cream for lighting facial hair while using this product?


Hi Taylor. Love ur blogs. I’m currently using ORIGINAL Kojic Acid & Glutathione Dual Whitening/Bleaching Soap 120 g. My question is can Is it safe for me to use jolen bleach cream while using this product for lighting my dark hair on my face?


Can i cut these in little pieces to use? Will it work the same?


Hi ! Does kojic soap is advisable for oily skin ?


Hy,i love your blog,pls I need a good whitening cream I can be using with the logic acid soap,i have very dry skin and a post bleaching syndrome on my skin, pls what can I use so that my skin wil rhyme?


im lila
i go to school everyday(17 years) and when you go out everyday, you get exposed to sun right? i am indoors for hours though and i try my best not to sit under direct sunlight…. should i wear sunscreen?

Amit kasaudhan

I m amit
I m suffering from acne and pimpals on my face ..;lz suggeste me what should i do..


does the soap has any effect on pregnancy


Hi… Is it okey if I use kojic acid soap with a face sponge to wash my face everyday? A little scrub to remove make up?


Hi! i love your posts they’re so informative I have been using kojic acid for whout 2.5 months now and ive seen results mainly on areas where i am already lighter, such as my arms, chest, face etc .. the areas of my body that remain dark are stomach, butt, inner thighs and back area.. ive probably noticed very slight lightening but i am not giving up on it, I have read a review of a girl who has has been using it for 2+ years and she is waaaaay darker than me and she has seen great results. I… Read more »

Which toner and moisturiser suits best with Marie France kojic acid soap


Hello. I am from a tropical country. I want to have a lighter skin but im not that dark. But everytime i use kojic soaps, my skin looks darker after thats why i dont continue using kojic soaps. Actually, all of whitening soaps, thats always the result, i get darker. Is it normal? Should i continue using it?


Hi i just wanted to ask some few question about kojic san soap, i use kojic once a day for the first timer.. Its that right?, because usually i wash my face twice a day, so isnt good if i use other soap to wash my face.. Because i only apply kojic san soap at evening. And in the morning other soap. Because im just following what was written directions above this comments.

princess sarah del mundo

i am only 13 can i use the kojic soap

princess sarah del mundo

i am 13 years old only can i use kojic soap?

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