In today's world, people often discuss the comparison between glycolic acid and lactic acid, and this topic is hotly debated on platforms such as Reddit.

Glycolic acid has smaller molecules and strong penetration. It can quickly reach the deep layers of the skin, effectively exfoliate, make the old waste exfoliation on the surface of the skin fall off, rejuvenate the face, make the skin look smooth and delicate, and the color is more uniform. However, because of its high activity, it is sensitive to skin, or causes discomfort, such as redness, tingling, etc.

Lactic acid is relatively mild, with slightly larger molecules and slow penetration. Although the exfoliation power is slightly inferior to glycolic acid, its moisturizing performance is excellent. It can form a moisturizing film on the surface of the skin, lock in water and keep moisturizing, making the skin long-lasting hydration, and less irritation, suitable for people with sensitive skin.

Both have their own strengths, and the choice should be based on individual skin characteristics. Those with strong skin tolerance want the effect of quick skin rejuvenation, and glycolic acid is the best choice; while those with delicate and sensitive skin, focusing on moisturizing and soothing, lactic acid is more suitable. Good inspection of skin needs and careful selection of skin care products can achieve ideal skin care results.