In stock | Usually dispatched within 24 hours

Delivering gentle fine line-reducing benefits, the Medik8 Crystal Retinal 6 Serum is an advanced retinaldehyde formula that protects from the noticeable signs of ageing. Powered by 0.06% stabilised retinal that's released via encapsulation technology, the treatment is best suited to experienced users of the active.
The fast-acting form of vitamin A is known for its skin-smoothing effect and potent renewing properties. Paired with hyaluronic acid, glycerin and vitamin E, the serum diminishes the look of uneven texture, dullness and discolouration to promote the illusion of enhanced elasticity and bounce. Dermatologist recommended, the innovative Crystal Retinal collection features a unique ladder of five progressive strengths (0.01 - 0.2%) to ensure optimal results at every level of your retinaldehyde journey.
- 97% felt their skin had a more youthful appearance*
- 20% reduction in the appearance of wrinkles*
- 20% reduction in visible pigmentation*
- 11% increase in skin firmness*
- 100% felt Crystal Retinal was gentle on their skin*
*Proven via independent clinical study on one tube of Crystal Retinal 6. Tested on 33 participants over 12 weeks.
Step 1: After cleansing in the evening, apply 2 pumps of Crystal Retinal to the face and neck. Allow to absorb then follow with a moisturiser.
Step 2: For new users of Crystal Retinal, phase application in gradually. Use twice a week for the first 2 weeks, every other night for the next 2 weeks, then every night. You should always use a sunscreen the next morning after using vitamin A.
NOTE: Ladder up your visible age-defying results over time with Crystal Retinal's 5 progressive strengths (0.01% - 0.1% retinaldehyde). For those with very sensitive skin, we recommend starting with Crystal Retinal 1 (0.01%). However, most Crystal Retinal and vitamin A beginners start on Crystal Retinal 3 (0.03%). If you're an experienced vitamin A user already, start at Crystal Retinal 6 (0.06%) before working your way up to Crystal Retinal 10 (0.1%).
Aqua (Water), Caprylic/Capric Triglyceride, Glycerin, Isododecane, Cetearyl Olivate, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Cyclodextrin, Eclipta Prostrata Extract, Cetearyl Alcohol, PPG-12/SMDI Copolymer, Sorbitan Olivate, Tocopheryl Acetate, Titanium Dioxide, Squalane, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Phenoxyethanol, Melia Azadirachta Leaf Extract, Hydroxypropyl Methylcellulose, Sodium Hyaluronate, Tetrahexyldecyl Ascorbate, Rubus Chamaemorus (Cloudberry) Seed Oil, Pentylene Glycol, Retinal, Alumina, Isostearic Acid, Lecithin, Polyglyceryl-3 Polyricinoleate, Polyhydroxystearic Acid, Sodium Polyaspartate, Climbazole, Disodium EDTA, Daucus Carota Sativa (Carrot) Seed Oil, Hydroxyacetophenone, Lonicera Japonica (Honeysuckle) Flower Extract, Ethylhexylglycerin, Lonicera Caprifolium (Honeysuckle) Flower Extract, 3-O-Ethyl Ascorbic Acid, Dipteryx Odorata (Tonka) Bean Extract, Stearic Acid, Moringa Oleifera Seed Oil, Polysorbate 60, Sorbitan Isostearate, Vanilla Planifolia (Vanilla) Fruit Extract, Decylene Glycol, BHT, 1,2-Hexanediol, Coumarin.
For the latest information, it is recommended to review the ingredient list printed on the packaging of the product prior to usage or consumption.
Frequently Bought Together

This item
Medik8 Crystal Retinal 6
RRP: €80.45 Current price: €64.45
Save 16,00 € ( 20% Off )
Other Customers Bought
Customer Reviews
5 stars rating 257 reviews
4 stars rating 31 reviews
3 stars rating 5 reviews
2 stars rating 1 reviews
1 stars rating 0 reviews
Top Customer Reviews
Where reviews refer to foods or cosmetic products, results may vary from person to person. Customer reviews are and do not represent the views of The Hut Group.
Best retinol
This is the best anti aging product you should incorporate into your routine. I started with the retinal 3 and now onto 6 and let me tell you… my skin is much smoother and brighter!
by Vivian Verified Purchase
Was this helpful?
Really good but expensive
This is an amazing retinal and does make skin look amazing, however it’s very expensive and this has only lasted 3 weeks, I do use it every day so for people who use it less would obviously get more days, I will be moving on to level 10 but will probably use more sparingly.
by Hollie Verified Purchase
Was this helpful?
Lovely product
I can honestly say after using this product I can really tell a difference in my skin. Texture is much smoother and brighter. My skin used to be quite oily and that has completely changed too. I don’t find that it is irritating to my skin as others I have used previously. I am just coming to the end of this tube which is the third one i have finished of this strength so I will be going up to the number 10 next. Would recommend!
by Rebecca Verified Purchase
Was this helpful?
Effective night serum
Noticeable results when using this product and no. 6 works well for my skin out of the whole retinal range. Skin appears smoother and brighter after use. Wouldn’t be without this!
by Sarah O Verified Purchase
Was this helpful?
Second tube
On my second tube of this and love it. Smell is great for a retinol as well!
by Yasmin Verified Purchase
Was this helpful?
The best retinol ever!
I love it. Feels so nice to apply. I didn’t have any reaction using this. Nice smell too. I’ve been buying it again for several years now
by Diana Verified Purchase
Was this helpful?
So good
Been using this for a few years now, such a good retinol makes skin so soft and smooth
by Karen Verified Purchase
Was this helpful?
Medik8 6
I’ve use retinal previously from another brand and really prefer this. Will be sticking with medik8 and moving up 10 when I finish this tube :)
by Tanya Verified Purchase
Was this helpful?
THE BEST RETINALDEHYDE!!!!
Don't bother with any other retinol product. This product contains retinaldehyde and it works much faster than retinol. Its better for your skin too. Apply niacinamide first to protect skin, then this retinaldehyde. Follow with moisturiser and honestly, you'll see a difference in no time at all!!! I started off with no. 3 for quite a while. If you're new to retinol/retinaldehyde I suggest you start low and slow. Build up your tolerance slowly. It's a process so don't rush it. The pay off will be worth it!!! I won't be bothering with any other retinol products. This is the one for me!! Ps I have combination skin and I am Indian, with a medium skin tone.
by Cee Verified Purchase
Was this helpful?
Wonderful
This is my first time to using a retinal and that why my choice was Medik 8- CR 6. My skin love it :))
by Zvezdelina Verified Purchase
Was this helpful?