Kojic acid is by far the most effective skin lightening soap in the market. Take a look at our 3 Best Kojic Acid Soap brand that’s best for skin lightening.
What is Kojic Acid?
First of all, what really is Kojic acid. Kojic acid soap is produced by specific species of fungi, Aspergillus oryzae, which in Japanese is locally termed koji. It was discovered through the process of fermenting rice to make sake (a popular alcoholic drink in Japan), miso (fermented soybeans), and even shoyu (Japanese soy sauce).
Kojic acid works by inhibiting formation of pigment by suppressing specific amino acids. The components of Kojic acid will compete or block natural enzymes that allow creation of these pigments so that the colors do not form.
How Does it Work on Skin
Kojic acid competes directly with the amino acids that cause our skin to produce melanin. Melanin is the enzyme in the skin that gives its color. When applied to skin, the Kojic acid penetrates the top layer to the epidermis wherein melanin is made. But because it passes to other healthy skin cells, if used in the wrong way, kojic acid can lead to irritation. However, it is important to remember that Kojic acid’s effects are reversible. So the moment you stop taking using Kojic acid, your skin will again produce the melanin and bring you back to your original color.
While normal peeling and dryness symptoms are expected and can be managed by applying moisturizers and corticosteroids, the products make your skin super sensitive and some people have persistent side effects. People who already have sensitive skin prior to trying the product should first seek consult with a dermatologist.
What to Look for When Buying Kojic Acid Soap
There are literally hundreds of Kojic soaps in the market and online, and all buyers should be careful in choosing their brands. Here are some things you should be looking for:
- FORMULATION. Safety standards generally recommend 1-2% Kojic acid in the soap formulations. Smaller percentages tend to be ineffective, while larger percentages will harm your skin. Speaking of formulation, Marie France Kojic Soap is the clear winner here.
- CERTIFICATION. Before going into market, products usually undergo a process for certification. Generally these include a series of steps from product manufacturing, lab testing, animal testing, and then clinical testing. Those with higher testing have more proof of effectiveness and safety. There are also certifications of HALAL for use of only halal products and GMP for non-use of generically modified organisms in its manufacture. Speaking of certification, the Royal Kojic Papaya Soap is the only kojic acid soap that is certified by Halal.
- INGREDIENT. Some Kojic acid soaps are made with actual fermentation from the bacteria while others are just mixed with pre-made synthetic acid in powder form. While they are generally similar in terms of effect natural ingredients are often safer and milder on the skin.
- CUSTOMER FEEDBACK. It doesn’t hurt to do a little research before buying your Kojic acid soap. Find out what your friends are using or what people are saying about it online. Of course not all comments are accurate, but you can find out the general perception of the product to help you make your buying decision. Very good websites to check customer feedback is Amazon, MakeUpAlley, and of course, this blog.
Kojic Acid Soap Brands Comparison
Guaranteed Result: Marie France Original Kojic Soap
Hands down to Marie France! It’s an internationally trusted brand with a professional strength to give you that maximum lightening effect. It’s paired with papain but remains gentle on the skin. It’s also filled with glycerin, Vitamin E and aloe vera keeping your skin smooth and soft without all the other additives of other brands. The price is a little higher than other brands, but I really believe that the price is worth it for taking extra care of your skin while it’s trying to rebuild you a healthier one.
Effectiveness and Value: Diana Stalder
Marie France could be costly at USD 9.99 per bar. However, if you still want a kojic acid soap that promises an effective skin lightening result without sacrificing your budget, then the medium strength formula of Diana Stalder Kojic Soap is your next choice.
Best Value: Royale Kojic Papaya Soap
The only soap with certifications — Halal and Superbrands. If you’re a member of Royale, you can buy this soap at a discounted price.
Best Budget: Kojie San Soap
Kojie san is one of the more affordable quality brands of Kojic acid soap in the market today however, the result isn’t as fast as the mentioned kojic acid soaps above. It has a very mild formulation mixed with orange and vitamin C to help make your skin lighter, and glycerine and coconut oil to provide you moisture.
Related Read: How to Use Kojic Acid Soap for Optimum Result