AHA Acid (Lactic Acid): Perfect for revitalizing dull, dry skin, AHA acid gently exfoliates and moisturizes, revealing a smoother, fresher complexion. Its larger molecule size means it works more superficially, making it ideal for sensitive skin as it does not penetrate deeply. AHA acid effectively cleanses dead skin cells, allowing new, radiant skin to emerge while keeping the skin hydrated. When combined with PHA acid, the result is a more intense and comprehensive exfoliating effect. PHA Acid (Gluconolactone): A new generation acid that promotes skin renewal without causing dryness or irritation. Suitable for all skin types, from dry to acne-prone, it helps make the skin more radiant, clean, and clear. When applied to moist, freshly cleansed skin, PHA acid is more active, so a tickling sensation and slight redness are normal and will disappear in a few minutes. With continued use, the skin’s tolerance improves while maintaining its effectiveness. Unlike other acids that can dry out the skin, PHA acid has a moisturizing effect, providing firm and elastic skin. It’s ideal for anti-aging products and is a must-have for flawless skin.