How to use:

At the essence stage of the skincare routine, use a cotton pad to wipe along the skin texture.
Finish with a moisturizer.

Key Ingredients:

Anti-acne: Niacinamide
Cell-communicating ingredient: Niacinamide
Exfoliant: Glycolic Acid
Skin brightening: Niacinamide
Skin-identical ingredient: Sodium Hyaluronate
Soothing: Panthenol

Ingredients list:

Pyrus Malus (Apple) Fruit Water, Butylene Glycol, Glycolic Acid, Niacinamide, Sodium Hydroxide, 1,2-Hexanediol, Panthenol, Sodium Hyaluronate, Xanthan Gum, Ethyl Hexanediol

About Glycolic Acid:

It's the most researched AHA with the most proven skin benefits
It gently lifts off dead skin cells to reveal newer, fresher, smoother skin
It can help the skin's own collagen production that resulting in firmer, younger skin
It can fade brown spots caused by sun damage or PIH
Choose a product where you know the concentration and pH value because these two greatly influence the effectiveness
Don't forget to use your sunscreen (in any case but especially so next to an AHA product)
Slight stinging or burning with a stronger AHA product is normal
If your skin is very sensitive, rosacea-prone choose rather a BHA or PHA product