Kojic Acid vs. Glutathione: Which is better?

Nature offers a long list of natural skin whiteners such as papain derived from papaya, arbutin from bearberry, vitamin C from citrus fruits, and so on. Most of these ingredients help slough off dead skin cells and accumulated dirt to reveal the healthier skin underneath.

But when it comes to the best skin whitening ingredient, the top two favorites have always been Kojic Acid and Glutathione. Glutathione and Kojic Acid work by inhibiting the melanin production of skin; hence, making it appear lighter and clearer. Both ingredients have the prowess to lighten stubborn dark areas such as the nape, underarms, and bikini lines. Likewise, it can help fade blemishes, minimize pores, and even out skin tone.

Factors to Consider in Choosing Whitening Soaps:

1. Skin Type

Do you have normal, dry, oily, sensitive, or combination skin? Glutathione and Kojic Acid soaps are suitable for all skin types; however, people with sensitive skin may experience slight stinging or minor irritation during the first week of using kojic acid soap.

2. Other Skin Concerns

Glutathione and Kojic Acid soaps are both effective in whitening skin but if you also wish to achieve something other than whitening, it would be best to choose the latter. Kojic Acid fights pimple-causing bacteria and fungal infections.

3. Authenticity

Make sure you get your product from a reputable company and make sure the product is authentic.

Kojic Acid

Malting rice to create sake or Japanese rice wine, which involves the Koji fungi produces a byproduct called Kojic Acid. At present, Kojic Acid products are in demand and so far, many have testified to its efficacy and safety. In fact, kojic acid is the world’s top leading whitening agent.

Kojic Acid promotes natural exfoliation and helps eliminate dead skin cells, excess sebum, deep-seated dirt, and microorganisms that may thrive on the skin. It assists in the cellular turnover to reveal a new layer of healthy cells for a softer, smoother, and clearer complexion.

Kojic Acid vs Glutathione

Moreover, Kojic Acid can treat various types of pigmentation problems including acne scars, freckles, and melasma. Apart from fading blemishes, Kojic Acid addresses the root of the pigmentation by inhibiting tyrosinase activity that is responsible for melanin production. Consequently, Kojic Acid reverses the darkening of the skin and lightens even highly pigmented areas such as the nape, underarms, and bikini lines.

In addition to its whitening effects, Kojic Acid features anti-microbial qualities that combat bacterial strains that cause acne. Likewise, Kojic Acid has anti-fungal properties that complement its anti-bacterial properties. It is also effective in preventing certain fungal infections such as athlete’s foot and ringworm if used regularly.


  • Lightens complexion
  • Improves the appearance of blemishes
  • Controls excess sebum
  • Promotes natural exfoliation
  • Prevents pimple-causing bacteria
  • Prevents fungal infections


  • Skin may experience micro peeling during first week of usage


Kojic Acid vs GlutathioneOn the other hand, Glutathione is a potent antioxidant essential for cell development and protection of the human body. Glutathione is naturally occurring, with the liver as its reservoir. It plays a vital role in eliminating heavy metals, toxins, and free radicals, all of which cause damage to the quality of cells including skin cells.

Glutathione’s primary purpose is to get rid of toxins, but enhanced levels of Glutathione can provide anti-aging effects as well as it fights oxidative stress. Henceforth, it is an ideal ingredient for cosmetic preparations such as injection or supplement form. Unfortunately, Glutathione can do more harm than good when taken in large doses between short intervals. That is why cautious individuals turn to Glutathione soaps, which is much safer for long-term use.

In soap, the antioxidant qualities of the synthesized glutathione can be just as beneficial to the skin. Similar to kojic acid, Glutathione helps inhibit hyper-pigmentation and fade age spots, skin discolorations, etc.


  • Lightens complexion
  • Fades acne marks, sunspots, scars, etc
  • Improves the appearance of fine lines
  • Suitable for all skin types


  • Does not promote natural exfoliation
  • Has no anti-bacterial property
  • Has no anti-fungal property


Both Glutathione and Kojic Acid soaps work by reducing the production of melanin in our skin for a flawless and radiant complexion. Then again, it remains a moot point as to which skin whitening soap is the best.

Moreover, the effects of skin whitening soaps can still wane through time when not used consistently. It entails a sense of commitment to sustain the effects. Therefore, if you have to choose only one for a long time, it would be best to opt for the product that is safe and has more to offer than just skin whitening.

The good news is that there is now a skin whitening soap which combines both Glutathione and Kojic Acid to form what some are calling the most effective skin whitening soap on the market. It’s Honeycomb Kojic Acid Soap.

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