Dr. Bronner's Pure-Castile Liquid Soap - Peppermint 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 2 ingredients in common
Suited For
They're both likely to be good for dry skin and scar healing
Free From
They both do not contain any harsh alcohols, common allergens, parabens, silicones or sulfates
What's Inside
They both contain fragrances and oils
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
Dr. Bronner's Pure-Castile Liquid Soap 11 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
Dr. Bronner's Pure-Castile Liquid Soap 11 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.
Cocos Nucifera Oil is obtained from the kernels of the coconut fruit. In other words, this is coconut oil.
Coconut Oil is rich in fatty acids with lauric acid making up the majority of these. It also contains linoleic acid. Due to this high fatty acid content, coconut oil helps trap moisture and soften skin.
Despite being antibacterial, coconut oil may not be great for acne-prone skin. It is comedogenic and may clog pores. This ingredient may not be safe for malassezia or fungal acne.
Note: Coconut Oil should not replace your sunscreen for UV protection. Studies show it only blocks about 20% of UV.
This oil is non-volatile and has a light scent.
The term 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term. For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance.
Learn more about Cocos Nucifera OilWater. 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 WaterIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Dr. Bronner's Pure-Castile Liquid Soap 11 ingredients
Kojie San Skin Lightening Kojic Acid Soap 18 ingredients
Reviews
Here's what our community thinks
