Medik8 Crystal Retinal 6 - 30ml

Are fine lines becoming more defined, does your skin texture feel uneven, or is your skin prone to blemishes? Then Medik8 Crystal Retinal 6 – the night serum with 0.06% retinaldehyde – is the logical next step. This strength is made for anyone who tolerates Crystal Retinal 3 well or already uses vitamin A regularly and wants more from their results without unnecessary irritation. The formula suits all skin types and sits at step 6 of the Crystal Retinal ladder.

How it works

Retinal (retinaldehyde) is the form of vitamin A that is just one conversion step away from retinoic acid, which is why it works up to 11x faster than traditional retinol. It speeds up cellular renewal, visibly reducing fine lines, wrinkles and pigmentation marks while the skin feels firmer and plumper. Crystal Retinal is also the only vitamin A with a direct antibacterial benefit, making it a smart choice for blemish-prone skin. Sodium Hyaluronate holds moisture in the upper layers, while Squalane and vitamin E derivative (Tocopheryl Acetate) keep the skin comfortable as you build up.

Texture and how to use it in your routine

A light, creamy emulsion with a subtly warm vanilla scent that absorbs quickly without stickiness. Use it in the evening only, as your final active step after cleansing and before your night cream – Advanced Night Restore, for example. In the morning, the CSA philosophy calls for vitamin C (such as C-Tetra) and a high sunscreen like Advanced Day Ultimate Protect SPF 50+, as retinaldehyde makes skin more sensitive to UV. Avoid layering it with strong acids or peels in the same step.

Frequently asked questions

Which strength should I choose?

Crystal Retinal 6 is intended for regular users or as a step up from Crystal Retinal 3. If you are new to vitamin A, start at 1 or 3 and build gradually.

Can I combine it with vitamin C?

Yes, but keep them separate: vitamin C and SPF in the morning, Crystal Retinal 6 at night. That is exactly Medik8's CSA routine.

How long does 30 ml last?

Using a thin layer each evening, the 30 ml pump typically lasts around three months with daily use, and longer while you are building up.

Crystal Retinal 6 contains 0.06% retinaldehyde, a form of vitamin A only one conversion step from retinoic acid, which is why it works up to 11x faster than traditional retinol with a lower risk of irritation. It accelerates cellular renewal, so fine lines, wrinkles and pigmentation marks are visibly reduced and skin texture looks more even. Retinal also offers a direct antibacterial benefit, useful for blemish-prone skin. Sodium Hyaluronate and Squalane hold moisture and keep skin comfortable while you build up strength.

In the evening, apply a thin layer (about one pump) to cleansed, dry skin on the face and neck, before your night cream. Start with 2-3 times per week and build up to nightly use if your skin tolerates it well. Avoid the immediate eyelid area. Always use vitamin C and a high SPF during the day, as retinaldehyde makes skin more sensitive to UV.

After a few weeks skin feels smoother and looks visibly more even. With regular use, fine lines and wrinkles are visibly reduced, uneven pigmentation becomes less noticeable and the skin appears firmer and fresher. A short adjustment period with dryness or light flaking is possible in the first weeks.

• Hyaluronic acid – Can hold up to 1000 times its weight in moisture and provides intensive hydration
• Glycerin – Intensely hydrates and has a soothing effect
• Vitamin A/Retinol – Increases collagen levels in the skin and stimulates skin regeneration for a youthful and smooth complexion
• Vitamin E – A powerful antioxidant that protects against free radicals and premature skin aging.

Aqua (Water), Caprylic/Capric 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.

The manufacturer is responsible for the composition of the product. As the composition may change, we recommend always checking the ingredients on the packaging.