BurgerClosechevronBagSearchUser
  • Logo
  • servicesStores & services
    Liverpool One
    Stores
    Sephora Liverpool One
    5 South John Street, Liverpool One Mall, Liverpool, L1 8BU
    View All Hours +
    Cycle
    Change your store

    Your favourite store allows you to see services available and book appointments

    In-Store Services
    Make-up and skincare services, Benefit BrowBar, gifting and personalisation workshop, Sephora offers you a whole range of services to come and discover in store Make an appointment
    (Liverpool One)
    See all store services
  • Wishlist
  • Cart0
Medik8 Crystal Retinal 3 30ml

Medik8 Crystal Retinal 3 30ml

%0 4.71 | 2577 reviews
Box

£49.00 (£1.63 per ML)

In stock

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

Proven 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.

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.

Good to Know:
CLINICALLY-PROVEN FORMULA
DERMATOLOGIST RECOMMENDED
NO ARTIFICIAL FRAGRANCE
NO SYNTHETIC COLOURS
PARABEN FREE
ALCOHOL FREE

MORE INFORMATION
CLINICALLY-PROVEN FORMULA
DERMATOLOGIST RECOMMENDED
NO ARTIFICIAL FRAGRANCE
NO SYNTHETIC COLOURS
PARABEN FREE
ALCOHOL FREE

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.

Ingredients

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.

See more...

Rated 5 out of 5 by from Love it! I started this gradually as suggested and couldn’t wait to get to the regular daily use days. It didn’t ever disagree with my skin and I am now using nightly and can already see a difference. When I sat in the hairdressers recently being forced to look at myself in the mirror (!) I realised I didn’t look at tired as I had been! And this is after just a few weeks of using intermittently. So I look forward to more improvements as time goes on!!
Date published: 2025-06-10
Rated 5 out of 5 by from Love this This I like I have been using as per instructions and last week was my first week using every night. I already can see a difference in the texture of my skin and have had a few compliments regarding. Smells lovely
Date published: 2025-06-10
Rated 5 out of 5 by from This is my first purchase This is my first purchase of Crystal Retinol and I’m impressed. My skin has never looked better.
Date published: 2025-06-10
Rated 5 out of 5 by from Brilliant! My skin is better Brilliant! My skin is better than it’s been for years. This is the best skincare I have used. Highly recommend if you want to look your best as you age.
Date published: 2025-06-10
Rated 5 out of 5 by from Perfect retinal! I started using Medik8 Crystal Retinal 2 years ago from the lowest strength and gradually worked my way up to level 10 — and the results have been incredible. My skin is so much smoother, breakouts are now rare, and fine lines have noticeably softened. Most days, my skin looks practically flawless. I genuinely can’t imagine a day without Medik8. It’s become a must-have in my routine, and I’ll definitely be continuing to increase the level!
Date published: 2025-06-10
Rated 5 out of 5 by from Really see the difference I have now moved from Crystal Retinal 3 to Crystal Retinal 6 as I see how well my skin reacts to it: pores are less visible.
Date published: 2025-06-09
Rated 4 out of 5 by from Skin feels smoother but no Skin feels smoother but no visual results yet- only been 4 weeks
Date published: 2025-06-09
Rated 5 out of 5 by from Nice product but could be Nice product but could be stronger, also does it have to be orange coloured ? Im
Date published: 2025-06-08
  • y_2025, m_6, d_12, h_6
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasreviews, tv_34, tr_2534
  • loc_en_GB, sid_143618, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_sephora-uk
  • bvseo_sdk, p_sdk, 3.2.0
  • CLOUD, getReviews, 30.97ms
  • REVIEWS, PRODUCT
  • bvseo_sdk, p_sdk, 3.2.0
  • CLOUD, getContent, 32.94ms
  • QUESTIONS, PRODUCT
  • bvseo-msg: HTTP status code of 404 was returned;