油皮敏肌淡斑指南｜谷雨淡斑瓶：源头抑黑，温和不刺激

Core Viewpoint - The skincare market is expected to undergo technological innovation by 2025, focusing on precise spot treatment for pigmentation issues, with various products emerging to address these concerns [1][8]. Group 1: Product Highlights - Gu Yu Spot Lightening Serum is a leading domestic product with national whitening certification, designed to tackle sun spots, pigmentation, and acne marks, emphasizing its "high efficiency without irritation" [3]. - The serum utilizes patented technologies such as melting crystallization purification, 28-nanometer encapsulation, and targeted delivery, showing clinical data of an 86.62% reduction in melanin content within 72 hours [3][4]. - Key ingredients include Aurora Licorice, stable Vitamin C, and various botanical extracts, which work together to inhibit melanin transfer and promote skin renewal [4]. Group 2: User Experience and Recommendations - Users report that the serum is suitable for oily and sensitive skin, providing a refreshing feel without causing breakouts, and effectively lightening sun spots over time [4][6]. - For optimal results, it is recommended to apply the serum generously at night on pigmented areas to accelerate the lightening process and achieve an even skin tone [4]. Group 3: Competitive Products - Shiseido's Cherry Blossom Toning Essence is noted for its lightweight, nourishing texture that suits all skin types, effectively brightening and evening out skin tone while strengthening the skin barrier [6][7]. - Lancôme's Triple-Action Essence features three core ingredients stored separately to prevent oxidation, enhancing absorption and providing a protective shield against pigmentation [10][11]. - These products, alongside Gu Yu, represent a competitive landscape in the whitening and spot treatment segment, catering to diverse consumer needs and preferences [8].