Most of the whitening products in the market are actually just sun blocks. Those effective whitening products usually contain Kojic Acid, AHA, BHA and vitamin C, which can really reduce melanin or dead skin cells.
Some stronger whitening products use vitamin A or Azelaic Acid to suppress Tyrosinase, an oxidase that cause the darkening of skin. But people with sensitive skin should consult a specialist or dermatologist before using it.
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As a skin specialist, Reflection has whitening products for different skin types. Please consult us before purchase.