Transform your skin’s texture, radiance, and clarity with the Principia AG-10 9.8% Glycolic Acid + 4% Amino Acids Facial Serum — a professional-grade formula created for those who want visible, fast, and long-lasting results. If you struggle with acne, rough texture, enlarged pores, uneven tone, or early signs of aging, this serum delivers the powerful resurfacing your skin has been missing.

Glycolic Acid, one of the most effective AHA exfoliants, penetrates deeply to dissolve dead skin cells, remove impurities, unclog pores, and stimulate cellular renewal. This means smoother texture, fewer breakouts, and a brighter, more even complexion. While many acid serums can be harsh, the 4% Amino Acids Complex in this formula repairs and strengthens the skin barrier, restores hydration, and boosts firmness — making the treatment effective without irritation.

From the first uses, skin feels softer, clearer, and more refined. Over time, fine lines, acne marks, and irregular pigmentation fade, leaving you with renewed luminosity and youthful smoothness. This is the kind of improvement you notice in the mirror every day — the glow that cannot be faked.

Designed for European customers who demand quality, safety, and real transformation. Your skin will thank you.

✨ Key Qualities & Benefits (expanded, high-impact)

• Deep resurfacing action that smooths rough, uneven texture

• Brightens dull, tired-looking skin for a healthy, luminous glow

• Reduces acne, clogged pores & congestion for a clearer complexion

• Softens fine lines & expression lines, enhancing youthful appearance

• Strengthens skin barrier with amino acids, preventing irritation & dryness

• Boosts cell renewal, improving tone, firmness & elasticity

🧴 How to Use (clear & professional)

1. Apply 4–6 drops at night onto clean, completely dry skin.

2. Spread gently over the face, avoiding the eye area.

3. Wait 1–2 minutes before applying moisturizer.

4. Use 3–5 times per week, depending on tolerance.

5. Always apply broad-spectrum sunscreen during the day when using acids.

Suitable for beginners — start slowly and increase frequency as skin adapts.

Perfect for those who want a professional-grade treatment at home, this serum helps refine pores, reduce breakouts, soften fine lines, and restore luminosity with every use. Ideal for all skin types looking for real transformation—without irritation or heaviness. Elevate your skincare routine with a formula that works as hard as you do.