Encapsulated Retinol-Some 1.9% (99.8% Purity): An advanced micro-encapsulated retinol delivery system that releases gradually into the epidermis, stimulating natural collagen synthesis, accelerating cell turnover, softening wrinkles, and decongesting pores with significantly lower irritation than conventional retinol.

High-Purity NMN (99% Nicotinamide Mononucleotide): A cellular vitality co-enzyme precursor that supports epidermal energy, promotes natural skin renewal, and restores youthful bounce and luminosity.

5-Synergy Complex: A multi-dimensional blend of Peptides, Ceramides, Beta-Glucan, Fermented Extracts, and Antioxidants that works synergistically to reinforce the skin barrier and prevent dehydration during cellular turnover.

Niacinamide, Hyaluronic Acid & Panthenol: A balancing trio that refines pore appearance and evens skin tone (Niacinamide), draws deep moisture to plump fine lines (Hyaluronic Acid), and soothes potential sensitivity (Panthenol).

Clean, Non-Comedogenic Base: Formulated without artificial fragrances, drying alcohols, or parabens, and clinically tested non-comedogenic.

Visibly Smooths Wrinkles & Fine Lines: Boosts endogenous collagen and elastin support to soften smile lines and forehead creases for firmer, bouncier contours.

Refines Pores & Uneven Texture: Clears trapped sebum and accelerates surface exfoliation, leaving enlarged pores visibly tighter and skin texture silky smooth.

Brightens Dullness & Dark Marks: Combines Retinol, Niacinamide, and NMN to fade post-acne discoloration and restore a unified, radiant complexion.

Lightweight, Fast-Absorbing Fluid: Glides effortlessly onto the skin without greasiness or stickiness, making it comfortable even for combination and oily skin types.

When targeting early fine lines, deeper wrinkles, or loss of skin elasticity and firmness (from mid-20s onward).

To improve enlarged pores, blackheads, and rough, uneven skin texture.

To fade stubborn post-acne marks and revive dull, sun-stressed skin.

If previous retinol products caused irritation and you want a gentler, encapsulated nighttime formula.

For external topical use in your evening skincare routine only.

Avoid direct contact with the eyes and lips; if contact occurs, rinse immediately with plenty of lukewarm water.

Perform a patch test on a small area behind the ear or on the neck prior to initial full-face application.

Contraindicated in Pregnancy & Breastfeeding: Contains Retinol (a Vitamin A derivative) and must not be used if you are pregnant, planning pregnancy, or nursing.

Do not layer in the same routine with strong exfoliating acids (AHA/BHA) or high-concentration pure Vitamin C to prevent barrier damage.

If excessive flaking or persistent redness occurs, reduce application frequency or pause temporarily and focus on barrier hydration.

Storage: Store in a cool, dry place (5°C–25°C / 41°F–77°F) away from direct sunlight and heat, out of reach of children. Recommended to use within 6 months of opening.

Step 1 (Cleanse & Dry Completely — PM Only): Wash your face with a gentle cleanser and pat completely dry (never apply retinol onto damp skin, as moisture increases penetration and irritation).

Step 2 (Dispense & Apply): Apply 2 to 3 drops evenly across your face and neck, strictly avoiding the eyelids, eye contour, and corners of the mouth and nose.

Step 3 (Seal with Moisturizer): Wait one minute for full absorption, then apply a rich barrier-repair moisturizer (for extra-sensitive skin, use the "sandwich method": moisturizer, serum, then moisturizer).

Step 4 (2-Week Adjustment Protocol): Start every other night (2 to 3 times weekly) during the first two weeks to let your skin acclimate, then gradually increase frequency as tolerated.

Step 5 (Mandatory Morning Sunscreen): Always apply broad-spectrum SPF 50+ sunscreen every morning, as retinol increases skin photosensitivity.

Q: Is Medicube Retinol 1.9% suitable for retinol beginners or sensitive skin?
A: Yes. Its encapsulated Retinol-Some technology ensures slow, controlled release paired with soothing Panthenol and Ceramides to minimize irritation. Still, beginners must start slowly (2–3 nights a week for the first two weeks) alongside a good moisturizer.

Q: Will this serum cause initial purging or peeling?
A: During the first 2 weeks (the adjustment phase), mild flaking or temporary small breakouts (purging) can occur as cell turnover accelerates and clears deep congestion. Consistent moisturizing and daily SPF will help your skin adjust smoothly.

Q: Can I use it alongside Vitamin C serum or Glycolic Acid toner?
A: Avoid combining them in the same evening routine to prevent irritation. Use Vitamin C in the morning under sunscreen, apply Retinol at night, and keep chemical exfoliating acids on separate nights.

Q: Can I use this serum while pregnant or breastfeeding?
A: No. All retinoids and Vitamin A derivatives are medically contraindicated during pregnancy and breastfeeding.