Medicube NMN Retinol 1.9% Boosting Serum 30ml

Skin that’s starting to lose its bounce and show fine lines needs a powerhouse ingredient like retinol, but plenty of people hesitate because of the irritation it’s known for. Medicube NMN Retinol 1.9% Boosting Serum (30ml) solves that with a low-irritation formula built to deliver strong retinol results with more comfort for the skin.

This serum comes from Medicube, the Korean brand known for its research-backed products and a familiar name among fans of Korean skincare products. It’s built around a patented retinol at 1.9% concentration with 99.8% purity, combined with 99%-purity NMN, and an encapsulation technology that ensures gradual, controlled absorption for visible results without overwhelming the skin.

Benefits

• Helps improve the appearance of fine lines and wrinkles
• Supports skin elasticity for a plumper, more resilient look
• Helps refine the appearance of pores and overall skin texture
• Low-irritation formula suitable even for sensitive and acne-prone skin
• Supports a more radiant, youthful-looking complexion with regular use

Active Ingredients

• Encapsulated Retinol at 1.9% (99.8% Purity): helps renew skin cells and improve the appearance of wrinkles and pores
• NMN at 99% Purity: an anti-aging ingredient that supports skin vitality
• Niacinamide: supports a more even skin tone and helps maintain the skin barrier
• Centella Asiatica Extract & Asiatic Acid: soothe the skin and help reduce the chance of irritation
• Ceramide NP & Panthenol: support the skin barrier and help maintain hydration while using retinol

How to Use

Apply in the evening on cleansed skin, before moisturizer. Take a small amount and gently apply to the face. Start with 2-3 times a week and gradually increase frequency as your skin builds tolerance.

Best Suited For

Suitable for a wide range of skin types, including sensitive and acne-prone skin — a good option for anyone new to retinol or looking for a gentler alternative to traditional retinol formulas.

Warnings

For external use only, evening use exclusively. Contains retinol, so strict daytime sunscreen use is recommended while using this product. A patch test is recommended before first use, and it’s best to start gradually to minimize the chance of irritation. Avoid direct contact with eyes — if contact occurs, rinse thoroughly with clean water. Keep out of reach of children.

FAQ

Can I use this as my first-ever retinol product?
Yes, the formula is designed to be low-irritation and suitable for retinol beginners, but it’s best to start gradually with 2-3 times a week.

Do I really need strict sunscreen use while using it?
Yes, daily sunscreen is essential while using any retinol product to protect the skin and prevent increased sun sensitivity.

Is it suitable for sensitive skin?
Yes, the formula is specifically designed to minimize irritation and suits sensitive and acne-prone skin, though a patch test is recommended first.

When will I see results on fine lines?
Results vary by skin, but consistent use over several weeks typically shows a gradual improvement in skin elasticity and fine lines.

Can I use it in the morning?
No, retinol products should be used in the evening only, leaving daytime for sunscreen and lighter care.