Medik8 Crystal Retinal 6
Get 345 LF Beauty Plus+ Points
£69.00
Or 3 interest free payments of £23.00 with paypal in 3
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%).
- 0.06% Retinaldehyde: A vitamin A-derivative that visibly firms the skin
- Hyaluronic Acid: A humectant that supports long-lasting hydration
- Glycerin: A humectant that seeks to maintain moisture levels
- Vitamin E: A humectant, emollient and antioxidant
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
£69.00
Other Customers Bought
Customer Reviews
5 stars rating 254 reviews
4 stars rating 31 reviews
3 stars rating 5 reviews
2 stars rating 1 reviews
1 stars rating 0 reviews
Top Customer Reviews
We really appreciate your thoughts! Our customer reviews on LOOKFANTASTIC are as real and authentic as our love for beauty, and we’re proud that they belong just to you and don’t reflect the opinions of us or The Hut Group.
Can’t live without it
I love Crystal Retinal, it was a recommendation from a well known skin freaks/rocks founder. I wanted something gentle on the skin, that does not sting, cause any redness, or tightness and this is it. It’s extremely effective at reducing fine lines, reducing dullness and congestion and makes your skin glowing. I started on 1 and slowly increased to 6, I notice when I do not use this product and it is one of my favourite night time products. Recommend to anyone.
by Amy Melissa Verified Purchase
Was this helpful?
Best product
I saved up for this after using the one below. I’ve noticed a massive difference in my skin. Plumper & less lined. Will definitely buy again
by Nicola Verified Purchase
Was this helpful?
Great
It’s early days using it but so far it’s a lovely product. Leaves eye area feeling softer & hopefully smoothing out lines but a bit early to tell. I have noticed a slight difference after a week
by Jenni Verified Purchase
Was this helpful?
Great so far
I've been using it for a few weeks now and it works very well. My skin is not as dry as it was after using retinol. It's quite pricey though, not sure if worth the price
by Wiktoria Verified Purchase
Was this helpful?
Best serum
Was using Crystal3 for 2 months, decided to go up with a strenght, cystal6 currently my favorite! ❤️
by Marta Verified Purchase
Was this helpful?
Wow wow wow
I am 33- would describe myself as a skincare enthusiast, I have been diligently into my routines for over a decade and have tried and used a lot of products. I’ve been using the Crystal Retinal 3 for a year, my skin was really dry at first and took a long time to build tolerance to retinols but I was seeing definite improvement with this product, I have just moved on now to Crystal Retinal 6 and am overjoyed with how well it’s working my skin looked amazing after the first use I can’t believe it, excited to see where continued use takes me. I use Sunday Riley Luna sleeping oil then Crystal Retinal then Sunday Riley ICE cream - this combo works amazing for me
by Sarah
Was this helpful?
Retinal 6
Use this once a week to build up my skins tolerance. Love medik8. Very fast results
by Kaye Verified Purchase
Was this helpful?
My beauty staple
I love this product more than I can tell,, if you want results fast this is your product. I have never had so much compliments on my skin since using it. Will never go back
by Lisa Verified Purchase
Was this helpful?
Early days - so far so good
I’ve only just started to use this product but have been getting unsolicited feedback about how good my skin looks!
by Jo Verified Purchase
Was this helpful?
Lovely
This doesn't dry out like others
by k Verified Purchase
Was this helpful?