Medik8 Crystal Retinal 24

Experience Medik8’s most powerful retinal serum yet. Crystal Retinal 24 contains 0.24% encapsulated retinaldehyde—the highest strength in the Crystal Retinal range—specifically formulated for advanced users seeking maximum age-defying results without a prescription.

Clinically proven to work up to 11× faster than traditional retinol, this high-performance night serum visibly reduces fine lines, smooths skin texture, improves tone, and enhances firmness. Powered by Medik8’s patented crystal encapsulation technology, it delivers a slow-release dose of retinal overnight to minimize irritation while maintaining maximum potency.

Dermatologist-developed and tested, 90% of users rated it as the most powerful anti-ageing product they’ve ever used, with 97% reporting zero irritation when stepping up from lower strengths.

 Key Benefits

• 0.24% retinaldehyde for clinically proven, rapid results

• Smooths wrinkles, boosts firmness & brightens skin tone

• Crystal-encapsulated for stability and reduced sensitivity

• Ideal for those who’ve finished at least one tube of Crystal Retinal 20.

Key Ingredients

Retinaldehyde
A next-generation form of vitamin A, retinaldehyde (or retinal) works up to 11 times faster than traditional retinol to visibly reduce fine lines, wrinkles, hyperpigmentation, and uneven texture. This powerhouse ingredient promotes smoother, firmer-looking skin—delivering clinical results with minimal irritation.

 Hyaluronic Acid
This ultra-hydrating molecule can hold over 1,000 times its weight in water, drawing moisture deep into the skin. It helps plump and smooth the complexion for a fresh, dewy glow.

Vitamin E
A potent antioxidant that defends against free radical damage, Vitamin E also enhances the effectiveness of other antioxidants like Vitamin C, helping to support youthful, resilient skin.

Glycerin
A naturally derived humectant that locks in moisture, ensuring skin stays soft, hydrated, and comfortable throughout the night.

How to use

Apply in the evening after cleansing. Use a pea-sized amount to clean, dry skin. Start with 2–3 nights a week, gradually building up to nightly use. Always follow with a moisturizer and broad-spectrum SPF in the morning.

Who It’s For

Recommended for expert vitamin A users only—those who’ve comfortably used Crystal Retinal 20 or similar high-strength retinal products. Not for beginners.

Full ingredients

Aqua (Water), Caprylic/Capris Triglyceride, Glycerin, Isododecane, Cetearyl Olivate, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Cetearyl Alcohol, PPG-12/SMDI Copolymer, Sorbitan Olivate, Tocopheryl Acetate, Titanium Dioxide, Eclipta Prostrata Extract, Cyclodextrin, Squalane, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Phenoxyethanol, Melia Azadirachta Leaf Extract, Hydroxypropyl Methylcellulose, Sodium Hyaluronate, Tetrahexyldecyl Ascorbate, Rubus Chamaemorus (Cloudberry) Seed Oil, Alumina, Isostearic Acid, Lecithin, Polyglyceryl-3 Polyricinoleate, Polyhydroxystearic Acid, Stearic Acid, Pentylene Glycol, Retinal, Moringa Oleifera Seed Oil, Sodium Polyaspartate, Climbazole, Disodium EDTA, Lonicera Japonica (Honeysuckle) Flower Extract, Lonicera Caprifolium (Honeysuckle) Flower Extract, Daucus Carota Sativa (Carrot) Seed Oil, Ethylhexylglycerin, 3-O-Ethyl Ascorbic Acid, Dipteryx Odorata (Tonka) Bean Extract, Hydroxyacetophenone, Polysorbate 60, Sorbitan Isostearate, Vanilla Planifolia (Vanilla) Fruit Extract, Decylene Glycol, 1,2-Hexanediol, BHT, Coumarin.