ALPHA-ARBUTIN is a pure, water soluble, biosynthetic active ingredient. ALPHA-ARBUTIN promotes lightening and an even skin tone for all skin types. ALPHA-ARBUTIN blocks epidermal melanin biosynthesis by inhibiting enzymatic oxidation of tyrosine and Dopa. Structurally, ALPHA-ARBUTIN [IUPAC name 4-hydroxyphenyl-α-D-glucopyranoside] is a α-glucoside, the α-glucosidic bond offers higher stability and efficacy than the β-form in the related beta-arbutin. This leads to a skin lightening active that acts faster and more efficiently than existing single components, minimizes liver spots and reduces the degree of skin tanning after UV exposure.
When there is a high concentration of the production of melanin, freckle -like spots and patches could start appearing on the surface of the skin especially the face. You may ask yourself how does frequent sun exposure cause melanocytes to become active? The answer is because of inflammation. Frequent exposure to UV rays caused from the sun could cause an inflammatory response on the face and when the response is severe, it could result in a sunburn. That means when you spend more time in sunlight, you have a larger risk for developing hyperpigmentation on the face.