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Crystal Retinal 20

Medik8 Crystal Retinal 20 30ml

%0 4.71 | 3411 reviews
Box

£99.00 (£3.30 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

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

Directions

- After cleansing in the evening, massage Crystal Retinal across the face, neck and décolletage.
- Allow to absorb before applying your moisturiser.
- Crystal Retinal application should be phased in gradually, and only use in the evening.
- 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. We recommend using at least 1 tube of your current Crystal Retinal strength before moving up the ladder to the next strength.

Composition

Fragrance - Spray

Ingredients

AQUA (WATER), CAPRYLIC/CAPRIC TRIGLYCERIDE, CYCLODEXTRIN, GLYCERIN, ISODODECANE, ECLIPTA PROSTRATA EXTRACT, CETEARYL OLIVATE, SODIUM ACRYLATE/SODIUM ACRYLOYLDIMETHYL TAURATE COPOLYMER, CETEARYL ALCOHOL, PPG-12/SMDI COPOLYMER, SORBITAN OLIVATE, TOCOPHERYL ACETATE, SQUALANE, RUBUS CHAMAEMORUS (CLOUDBERRY) SEED OIL, MELIA AZADIRACHTA LEAF EXTRACT, SODIUM HYALURONATE, HYDROXYETHYL ACRYLATE/SODIUM ACRYLOYLDIMETHYL TAURATE COPOLYMER, PHENOXYETHANOL, PENTYLENE GLYCOL, RETINAL, HYDROXYPROPYL METHYLCELLULOSE, DAUCUS CAROTA SATIVA (CARROT) SEED OIL, TITANIUM DIOXIDE, SODIUM POLYASPARTATE, CLIMBAZOLE, MORINGA OLEIFERA SEED OIL, ALUMINA, LONICERA JAPONICA (HONEYSUCKLE) FLOWER EXTRACT, ISOSTEARIC ACID, LECITHIN, POLYGLYCERYL-3 POLYRICINOLEATE, POLYHYDROXYSTEARIC ACID, STEARIC ACID, ETHYLHEXYLGLYCERIN, LONICERA CAPRIFOLIUM (HONEYSUCKLE) FLOWER EXTRACT, TETRAHEXYLDECYL ASCORBATE, DISODIUM EDTA, 3-O-ETHYL ASCORBIC ACID, HYDROXYACETOPHENONE, POLYSORBATE 60, SORBITAN ISOSTEARATE, DIPTERYX ODORATA (TONKA) BEAN EXTRACT, BHT, VANILLA PLANIFOLIA (VANILLA) FRUIT EXTRACT, DECYLENE GLYCOL, 1,2-HEXANEDIOL, COUMARIN.

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

Notes

Olfactory family: Floral woody musky
Top notes: Essence of mandarin, orange blossom
Heart notes: Madagascan vanilla, essence of ylang-ylang, gardenia
Base notes: Musk, benzoin from Sumatra, ambroxan
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Rated 5 out of 5 by from My go to… [This review was collected as part of a promotion.] Love my retinal cream, have worked my way up to the 24 and won't use anything else!
Date published: 2026-05-24
Rated 5 out of 5 by from The magi potion! [This review was collected as part of a promotion.] I love crystal retinal, an essential part of my routine. Moving over to Medik8 from other products, I played safe first using level 3 which was absolutely fine. I would definitely recommend this product.
Date published: 2026-05-24
Rated 5 out of 5 by from Love it [This review was collected as part of a promotion.] I have been using night serum and night moisturiser. The cream is thick and a little goes a long way. My skin feels so smooth. I love it and I would recommend giving it a try. Once I run out of a name brand I use I will be swapping over.
Date published: 2026-05-24
Rated 5 out of 5 by from Just started using it but [This review was collected as part of a promotion.] Just started using it but I prefer it to the Retinol oil because of the nice smell. So far so good.
Date published: 2026-05-22
Rated 5 out of 5 by from There is plenty of evidence [This review was collected as part of a promotion.] There is plenty of evidence of the benefits of retinol so a retinol serum is a no brainer. I started with number 1 due to sensitive skin and had to follow the recommended schedule strictly at the beginning to prevent my skin from feeling a slight burning sensation. Now I my skin is used to it I will be moving to a higher concentration. I use it at night before my moisturizer. After weeks, my skin looks better than before
Date published: 2026-05-22
Rated 2 out of 5 by from Retinol no. 6 [This review was collected as part of a promotion.] Hi, I've been using the crystal retinol number 6, only half way through at the moment. I put it on in the evening, it feels nice and moisturising at first, but soon feels dry . Not sure if this is what is supposed to happen, but my skin feels in need of more moisture. I am interested in finding out what works for me, so enjoying the experience.
Date published: 2026-05-22
Rated 5 out of 5 by from Love this product [This review was collected as part of a promotion.] Have dabbled with retinol in the past but am using this every other night and my skin looks fantastic
Date published: 2026-05-22
Rated 5 out of 5 by from Love it Love this product! My skin looks gorgeous, I get a lot of compliments… definitely recommend this product
Date published: 2026-05-22
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