⭐ Trusted by Thousands | 🚚 Free UK Delivery | 🔁 30-Day Returns | ✔ For Experienced Retinol Users

Take your skin renewal routine to the next level with Ammuri’s high-strength 5% Retinol Serum — formulated for experienced retinol users ready for advanced visible results.

• ✔ High-strength 5% Retinol for advanced visible skin renewal
• ✔ Visibly reduces the appearance of deep fine lines and uneven texture
• ✔ Helps support the skin’s natural renewal process overnight
• ✔ Improves the appearance of skin tone, radiance, and firmness
• ✔ Recommended for those already comfortable with lower-strength retinol

What It Is

A high-strength 5% Retinol serum designed for experienced retinol users who want to progress beyond starter concentrations. At 5%, this formula delivers a more intensive renewal experience for those whose skin has already adapted to lower strengths.

What It Does

• Visibly reduces the appearance of fine lines, wrinkles, and skin texture irregularities
• Helps support the skin’s natural overnight renewal process
• Improves the visible appearance of skin tone, clarity, and radiance
• Visibly firms and plumps the appearance of skin with consistent use

Key Ingredients Explained

Retinol 5% (Vitamin A) — A high-concentration form of Vitamin A that helps support the skin’s natural renewal process. Delivers advanced visible results for experienced users.

Hyaluronic Acid — Helps maintain skin hydration during the renewal process.

Who It’s For

Designed for experienced retinol users who have already built tolerance to lower concentrations (2.5%–3.5%). Not recommended for retinol beginners. Perfect for anyone asking: “What is the strongest retinol serum available?” or “When should I move up to 5% retinol?” Unsure if you’re ready for 5%? Read our guide on what percentage retinol you should use to find the right strength for your skin.

How to Use

Evening only: Apply a pea-sized amount to clean, dry skin 2–3 nights per week initially. Increase frequency gradually. Always apply SPF 30+ the following morning.

Build Your Routine

Morning:

• Exosome Brightening Serum — apply to clean skin first
• Vitamin C SPF50 Day Cream — essential UV protection after retinol use

Evening:

• Niacinamide Serum — apply first to support the skin barrier
• Retinol 5% Serum — renew skin overnight

Tip: If skin feels dry or sensitive, apply a layer of Aloe Vera Gel first to help soothe and support skin comfort.

Complete Your Routine

• Always follow the next morning with our Vitamin C SPF50 day cream — essential UV protection when using high-strength retinol
• Apply our niacinamide serum for pores and oil control first in the evening to help support the skin barrier

Frequently Asked Questions

Is 5% retinol suitable for beginners?
No — this is a high-strength formula recommended for those who have already built tolerance to lower concentrations. If you’re new to retinol, read our retinol strength guide to find the right starting point.

How often should I use 5% retinol?
Start with 2–3 nights per week and increase gradually as your skin adjusts.

Do I need SPF when using this?
Yes — always. Apply our Vitamin C SPF50 day cream every morning without exception.

How long before I see results?
Visible improvements in skin texture and tone typically appear within 4–8 weeks of consistent use.