Both kojic acid and glycolic acid are effective for lightening dark underarms, but they work in slightly different ways.
- Kojic acid is a natural ingredient derived from mushrooms, which inhibits the production of melanin, the pigment responsible for skin color. It helps to lighten existing dark spots and prevent further pigmentation.
- Glycolic acid is an alpha-hydroxy acid (AHA) that exfoliates the skin's surface, removing dead skin cells and revealing brighter skin underneath. It also promotes cell turnover, which helps to reduce hyperpigmentation.
Ultimately, the best choice for you depends on your individual skin type and concerns.
- For those with sensitive skin, kojic acid may be a gentler option as it is less likely to cause irritation.
- For those with thicker, more resilient skin, glycolic acid can be more effective at exfoliating and lightening dark spots.
It's always best to consult a dermatologist for personalized advice and to determine the appropriate concentration and frequency of use for either ingredient.
