Alpha arbutin is a skin-brightening ingredient derived from the bearberry plant or produced synthetically for greater stability and effectiveness. It works by inhibiting tyrosinase, the enzyme responsible for melanin production, helping to reduce the appearance of dark spots, post-inflammatory hyperpigmentation and uneven skin tone. Unlike some stronger brightening ingredients, alpha arbutin is gentle enough for most skin types, including sensitive skin, making it a popular choice for achieving a clearer, more radiant complexion without causing significant irritation.
In K-Beauty, alpha arbutin is commonly found in serums, ampoules and moisturisers formulated to improve skin clarity and promote a more even complexion. Korean skincare values alpha arbutin for its ability to target pigmentation while maintaining the skin's natural barrier. It is often paired with ingredients such as niacinamide, vitamin C, hyaluronic acid and tranexamic acid to enhance brightening results while supporting hydration. With consistent use, alpha arbutin-infused products can help fade the appearance of discolouration & improve skin tone.