Good Molecules Discoloration Correcting Serum Versus Kojie San Skin Lightening Kojic Acid Soap
Updated on March 17, 2025
Overview
What they are
These products are both reef safe . They have a total of 4 ingredients in common
Suited For
They're both likely to be good for fighting acne, dry skin, brightening skin, oily skin, scar healing and dark spots
Free From
They both do not contain any harsh alcohols, common allergens, parabens, silicones or sulfates
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
Good Molecules Discoloration Correcting Serum 10 ingredients
Kojie San Skin Lightening Kojic Acid Soap 18 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
Good Molecules Discoloration Correcting Serum 10 ingredients
Kojie San Skin Lightening Kojic Acid Soap 18 ingredients
Key Ingredients
Benefits
Concerns
Benefits
Concerns
Ingredients Side-by-side
Cocos Nucifera Oil
Masking
Water
Skin ConditioningSodium Hydroxide
BufferingParfum
Masking
Kojic Acid
Antioxidant
Glycerin
Humectant
Xanthan Gum
EmulsifyingCaprylyl Glycol
EmollientGlucose
Humectant
Chondrus Crispus
Masking
Phenoxyethanol
Preservative
Ethylhexylglycerin
Skin ConditioningButyl Diethanolamine
BufferingParaffinum Liquidum
Emollient
Melaleuca Alternifolia Leaf Oil
Antioxidant
CI 15985
Cosmetic ColorantCI 19140
Cosmetic ColorantBHT
Antioxidant
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterGlycerin is already naturally found in your skin. It helps moisturize and protect your skin.
A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.
As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.
Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.
Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.
In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.
This ingredient is organic, colorless, odorless, and non-toxic.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinCaprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
It is a common ingredient in many products, especially those designed to hydrate skin. The primary benefits are retaining moisture, skin softening, and promoting a healthy skin barrier.
Though Caprylyl Glycol is an alcohol derived from fatty acids, it is not the kind that can dry out skin.
This ingredient is also used as a preservative to extend the life of products. It has slight antimicrobial properties.
Learn more about Caprylyl GlycolEthylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
You might see Ethylhexylglycerin often paired with other preservatives such as phenoxyethanol. Ethylhexylglycerin has been found to increase the effectiveness of these other preservatives.
Ingredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Good Molecules Discoloration Correcting Serum 10 ingredients
Kojie San Skin Lightening Kojic Acid Soap 18 ingredients
Reviews
Here's what our community thinks
Good Molecules Discoloration Correcting Serum 10 ingredients
irritating
didn't notice much a difference with my dark spots/PIH. had to stop using it because it broke me out :(
(Tried Jun 2022) Can't say I was particularly fond of this product mainly because of the fact that I didn't really see a difference in any of my dark spots/hyperpigmentation improving. Not sure if this is more so formulated to be stronger for those with fairer skin.
Kojie San Skin Lightening Kojic Acid Soap 18 ingredients
I used this to correct the skin color of my sunburnt shoulders and back. It felt drying when using it but this product combined with physical exfoliation using a brush loofah removed my tan lines and reverted my skin color to how it was from childhood. Some of my scar marks from a long time ago also disappeared after using this.
A very hydrating moisturizer and sunscreen are required after Show more
Effective dark spots corrector soap but remember it can be drying and causes sun sensitivity, so always use moisturizer(night) and sunscreen(morning) after using this soap because if not you will get the opposite result that you want from this product .
