AHA (Alpha Hydroxy Acid) is a clinically proven exfoliating active that works by dissolving the bonds between dead skin cells on the surface — accelerating natural cell turnover to reveal fresher, brighter and more even-toned skin beneath. In the Amalys 7 Days Booster Serum, AHA works synergistically with Kojic Acid and Alpha Arbutin to deliver enhanced, faster brightening results. It also improves the skin's ability to absorb the other active ingredients — maximising the overall efficacy of the formula. Important: always apply SPF30+ during the day when using AHA-containing products, as AHA increases skin sensitivity to UV exposure.

Kojic Acid is one of the most effective and well-researched natural brightening actives available. Derived from the fermentation of rice and other fungi, it works by inhibiting tyrosinase — the enzyme responsible for melanin synthesis — to visibly reduce the appearance of dark spots, freckles, acne scars and areas of hyperpigmentation. In the Amalys 7 Days Booster Serum, Kojic Acid works in synergy with AHA and Alpha Arbutin to deliver a triple brightening effect — targeting melanin production at multiple pathways for faster, more visible and longer-lasting results.

Alpha Arbutin is widely regarded as one of the safest and most effective brightening actives available — delivering visible results without the irritation associated with stronger actives. It works by inhibiting tyrosinase activity — the enzyme responsible for melanin production — to gradually and consistently reduce the appearance of dark spots, hyperpigmentation and uneven skin tone. In the Amalys 7 Days Booster Serum, Alpha Arbutin completes the triple brightening complex alongside AHA and Kojic Acid — delivering a comprehensive, multi-pathway approach to brighter, more even and more radiant skin.

Glutathione is known as the body's master antioxidant — a naturally occurring tripeptide that plays a critical role in cellular protection and skin brightening. In the Amalys 7 Days Booster Serum, Glutathione works by inhibiting the enzyme tyrosinase and shifting melanin synthesis from darker eumelanin to lighter phaeomelanin — resulting in a visibly brighter, more even and more luminous skin tone with consistent use. It also provides powerful antioxidant protection against free radical damage caused by UV exposure and environmental stressors — helping to maintain the skin's health, radiance and youthful appearance over time.

Carrot Oil is a rich, nourishing botanical oil extracted from the Daucus carota plant. It is exceptionally rich in beta-carotene — a precursor to Vitamin A — as well as Vitamins E and D, which work together to deeply nourish, soften and protect the skin. In the Amalys 7 Days Booster Serum, Carrot Oil complements the brightening complex by providing deep skin conditioning and antioxidant protection — leaving the skin feeling soft, smooth and beautifully nourished after every application. Its natural carotenoid content also supports a healthy, warm and radiant-looking skin tone.