If the Hair Serum is about shine, the Guerniss Raw Glycolic Acid 2% Serum is all about the "glow." This is a chemical exfoliant designed to gently resurface your skin, making it a great entry point for people new to Alpha Hydroxy Acids (AHAs).
Here is the essential breakdown of this 30ml powerhouse:
What It Does
Exfoliation: It dissolves the "glue" holding dead skin cells together, revealing fresher, brighter skin underneath.
Texture Refinement: Helps smooth out small bumps, fine lines, and rough patches.
Acne & Pore Care: By removing dead skin buildup, it helps keep pores clear and can reduce the appearance of blackheads.
Hyperpigmentation: Regular use helps fade dark spots and acne scars over time.
The "Golden Rules" for Application
Because Glycolic Acid is an active acid, you want to be strategic about how you use it:
PM Routine Only: Acids can make your skin more sensitive to the sun. It’s best used at night.
Clean & Dry: Apply a few drops to a clean, completely dry face. Applying acid to damp skin can cause it to absorb too deeply and cause irritation.
The Sandwich Method: Follow up with a good moisturizer to seal in hydration and prevent dryness.
SPF is Mandatory: Since you’re revealing new skin cells, you must wear sunscreen the following morning to prevent sun damage.