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Crystal Retinal 10

Medik8 Crystal Retinal 10 30ml

%0 4.71 | 3506 reviews
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£89.00 (£2.97 per ml)

Free UK delivery

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If you like we can let you know when we have some more.

Product Description

Reveal visibly firmer, brighter-looking skin with just 1 tube of Crystal Retinal.

Medik8's bestselling vitamin A night serum is formulated with next-generation retinaldehyde (retinal) which is clinically proven to act 11x faster than retinol* for a visibly brighter, smoother and firmer-looking complexion.

Unlike other retinal serums available, Crystal Retinal features Medik8's unique patented stability system to ensure maximum retinal potency, while their industry-leading encapsulation technology delivers powerful yet gentle results with minimal irritation, even on sensitive skin types.

Loved and recommended by dermatologists and professionals all over the world, Crystal Retinal features a unique ladder of 5 progressive strengths (0.01%-0.2% retinal) so that you can continue to experience increased visible youth-renewing results. If you're a vitamin A beginner, Medik8 recommends that most people start on Crystal Retinal 3 (0.03%), or Crystal Retinal 1 if you have very sensitive skin (0.01%). If you're an experienced vitamin A user, start with Crystal Retinal 6 (0.06%) and gradually work your way up to Crystal Retinal 20 (0.2%). To use Crystal Retinal 20, you must have comfortably finished at least 2 tubes of Crystal Retinal 10 due to it containing a high percentage of retinal.

Working to reduce the appearance of stubborn fine lines and wrinkles and dark spots, Crystal Retinal is the ultimate age-defying serum for a healthier, more youthful-looking complexion.

*G. Siegenthaler et al., Retinol and retinal metabolism, Biochemical Journal, 1990, 268, pp 371-378

KEY BENEFITS
Fast Wrinkle Reducing Power
Clinically proven to visibly reduce wrinkles & dark spots by 20% with just 1 tube*

*Proven via independent clinical study on Crystal Retinal 6. Tested on 33 participants over 12 weeks.

Professional-Grade Results
Retinaldehyde is proven to work up to 11 times faster than classic retinol* - so you can see results sooner

*G. Siegenthaler et al., Retinol and retinal metabolism, Biochemical Journal, 1990, 268, pp 371-378

Radiant, Youthful Skin
97% felt their skin had a more youthful appearance*

*Proven via independent clinical study on 1 tube of Crystal Retinal 6. Tested on 33 participants over 12 weeks.

Effective Results Until the Last Drop
Thanks to Medik8's patented stability complex

Customise Your Routine With 5 Progressive Strengths
A retinal strength for beginners to expert users - even on sensitive skin

KEY INGREDIENTS
Retinaldehyde
Retinaldehyde (retinal for short) is a revolutionary form of vitamin A that is clinically proven to work 11x faster than traditional retinol* to address the appearance of fine lines and wrinkles, uneven skin texture, loss of firmness and hyperpigmentation without any irritation.
*G. Siegenthaler et al., Retinol and retinal metabolism, Biochemical Journal, 1990, 268, pp 371-378

Hyaluronic Acid
An incredibly hydrating ingredient, hyaluronic acid attracts and retains more than 1,000 times its own weight in water and draws moisture in the upper layers of the skin; leaving it looking visibly supple and deeply hydrated.

Vitamin E
Rich in antioxidants, vitamin E helps to protect the skin against ageing free radicals, while helping to stabilise retinal for maximum results.

Glycerin
A natural humectant that locks moisture into the skin; leaving it feeling comfortable and hydrated.

HOW TO USE
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. We recommend Advanced Night Restore which is specifically designed to be used after vitamin A.

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.

How to Layer Crystal Retinal
PM: In your evening routine, first cleanse and apply your target serum. Follow with Crystal

Directions

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. We recommend Advanced Night Restore which is specifically designed to be used after vitamin A.

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.

How to Layer Crystal Retinal
PM: In your evening routine, first cleanse and apply your target serum. Follow with Crystal Retinal and finally, your moisturiser.

Test results

97% felt their skin had a more youthful appearance*
20% reduction in the appearance of wrinkles*
20% reduction in visible hyperpigmentation*
11% increase in skin firmness*
100% felt Crystal Retinal was gentle on their skin*

*Proven via independent clinical study on 1 tube of Crystal Retinal 6. Tested on 33 participants over 12 weeks.

More information

*Product packaging may vary by region\n

Ingredients

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

This list of ingredients may be subject to change, please consult the packaging of the product purchased.

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Rated 5 out of 5 by from I was using Crystal retinal [This review was collected as part of a promotion.] I was using Crystal retinal 3 and enjoying it. I have sensitive skin so I am always worried with actives, but Medik8 products have been amazing for me. I have tried many and never had a negative reaction. I am now using Crystal retinal 6 and “oh boy” I love it so much. My skin is so smooth and bright. This days I barely use any other skin care that is not from Medik8, I ham such a fan of your products. I keep recommending them to everyone.
Date published: 2026-06-07
Rated 5 out of 5 by from Reliable [This review was collected as part of a promotion.] I’ve used this on and off for a few years and always come back to it. Great stable non- irritating serum.
Date published: 2026-06-07
Rated 5 out of 5 by from Consistently excellent [This review was collected as part of a promotion.] I've been using this product for a couple of years now and would never ever stop using it. It's fantastic. I look younger than five years ago!
Date published: 2026-06-07
Rated 4 out of 5 by from Incredible product [This review was collected as part of a promotion.] Brilliant product even the the tops of my hands are looking smoother after a few weeks of applying to my face - I rub the residual into them 🥳
Date published: 2026-06-07
Rated 5 out of 5 by from Easy to build up strength [This review was collected as part of a promotion.] Went with higher strength after starting with the recommended starter strength
Date published: 2026-06-07
Rated 5 out of 5 by from My forever retinal [This review was collected as part of a promotion.] Used this serum for many many years increasing the strength gradually. I love it and it’s the best retinal I have used! I also weirdly love the smell it’s very comforting haha.
Date published: 2026-06-07
Rated 5 out of 5 by from Best retinol product [This review was collected as part of a promotion.] I have been using retinol products since they first became available and have used most brands. Medik 8 is the best for me.
Date published: 2026-06-06
Rated 5 out of 5 by from I love this brand! [This review was collected as part of a promotion.] I am a 50 year old lady and my skin has never looked so good since using the Medik8 range. The Retinol especially is powerful but superb on sensitive skin if used correctly. Fantastic for aging skin in my humble view. Overall I was struggling with a dull and oily (in places) complexion and now my skin is balanced and dewy. Medik8 is a very special brand and the support offered on the website just seals the deal for me. I love it!
Date published: 2026-06-06
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