Medik8 Crystal Retinal 20 30ml

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£111.41 VAT included MEDIK8
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Anti-wrinkle and Anti-aging
Lifting and Firmness
Retinol
Eco-friendly Packaging


Discover youthful skin with Medik8 Crystal Retinal, the ground-breaking serum that reinvented vitamin A skincare. Featuring retinaldehyde, the next-generation retinoid that is 11x faster acting than retinol[1], now available in a series of 5 progressive strengths to accompany you on your journey to Beautiful Skin For Life.
WHO IS THIS FOR
Crystal Retinal is our ‘everyone’ vitamin A. It is renowned for its universal hydrating texture and low-irritation potential, while delivering profound, proven age-defying results.
Extremely sensitive skins should start low on Crystal Retinal 1 (0.01% retinal), with Crystal Retinal 3 (0.03%) best for sensitive skins or for those nervous about using retinal. Most people can start on Crystal Retinal 6 (0.06%) and gradually move up to Crystal Retinal 10 (0.1%) & 20 (0.2%) for clinical-strength results.
RETINAL VS RETINOL
RetinOl is two conversion steps away from active retinoid ‘retinoic acid’, whereas retinAl is just one step away. So you get faster, elevated results.
Retinal improves all of the visible signs of ageing 11 times faster than retinol[1].
Unlike other forms of vitamin A, our Crystal Retinal formula is suitable for even the most sensitive skins.
Retinal is the only form of vitamin A with antibacterial properties, making it perfect for oily or blemish-prone complexions.
WHY IT’S UNIQUE
Crystal Retinal is a one-of-a-kind innovation within the retinoid category. Not only featuring a patented stability system to offer unparalleled sustained levels of retinal power, Medik8 have taken it one step further and developed a progressive 5-strength ladder from 0.01% to 0.2% retinal. Harness the power of this molecule in a skin-friendly solution to build visible results comfortably over time.
Key Benefits
11 times faster than retinol[1]
Clinically proven to reduce fine lines by up to 20%[2]
11% increase in skin firmness with just one tube[2]
20% reduction in visible hyperpigmentation with just one tube[2]
100% agree Crystal Retinal is gentle on the skin[2]
100% agreed that their skin looked brighter after use[2]
Available in 5 different strengths from 0.01% to 0.2% retinal, to help minimise irritation and build visible progress.
Patented stabilised formula for ultimate potency
[1] G. Siegenthaler et al., Retinol and retinal metabolism, Biochemical Journal, 1990, 268, pp 371-378
[2] Proven via independent clinical study on Crystal Retinal 6. Tested on 33 participants over 12 weeks.
How It Works
After years of careful development, Medik8 took the incredible yet widely undiscovered powers of retinaldehyde and crafted the finished product that reinvented vitamin A skincare forever: Crystal Retinal.
The more stable the molecule, the more effective it can be on the skin. Crystal Retinal offers a level of retinal stability that is only found at Medik8: our innovative stability system features our renowned crystal encapsulation and a patented formula complex. The dual-layered stability system comes together to protect the retinal molecule for unmatched potency and long-lasting effectiveness.
After years of careful development, Medik8 took the incredible yet widely undiscovered powers of retinaldehyde and crafted the finished product that reinvented vitamin A skincare forever: Crystal Retinal.
Stabilised, encapsulated retinal is carefully delivered to the skin within a blend of multi-weight hyaluronic acid, glycerin and vitamin E, to continually infuse the skin with hydration whilst supporting the skin barrier. Our lightweight yet moisturising formula can be used every night of the week (once it has been gradually phased into your routine), as it has been formulated to keep skin comfortable and hydrated whilst reaping the benefits of the powerful retinal molecule.
Unlike many other forms of vitamin A, including retinol, retinal boasts direct, powerful antibacterial properties, making it the perfect vitamin A molecule for blemish-prone skin.
How To Use
Use in the evening. First cleanse, then apply 2 pumps of Crystal Retinal over face and neck. Allow to absorb then follow with a moisturiser. We recommend Advanced Night Restore, designed to be used after vitamin A.
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 in the morning while using vitamin A.
Patch testing prior to use is advised. Refer to medik8.co/patch for an in-depth guide to patch testing
Crystal Retinal 20 should only be used by those who have comfortably finished at least 2 tubes of Crystal Retinal 10, due to it containing a very high strength of retinaldehyde (0.2%).
Crystal Retinal features in many of our carefully curated regime guides, including our Wrinkle Repair guide. Click the link for additional product recommendations and easy-to-follow layering advice.
Up to 3 months supply from 1 tube when used daily (after phasing in).

Shop Online Medik8 Crystal Retinal 20 30ml at best price.
Product features:
- By Need: Anti-wrinkle and Anti-aging, Lifting and Firmness
- Product Type: Serums, Boosters and Oils
- Best Sellers: Retinol
- Active Principles: Retinol
- Application Time: Night

Product Reference: #323566

Directions for Use: 1. In the evening, cleanse your face thoroughly. 2. Apply 2 pumps of Medik8 Crystal Retinal 20 to your face and neck. 3. Allow the serum to absorb fully. 4. Follow with your preferred moisturizer. Medik8 recommends Advanced Night Restore, specifically designed for use after vitamin A serums.


Recommended Frequency: For new users of Crystal Retinal, gradually introduce the product into your routine. Use twice a week for the first 2 weeks. Then, apply every other night for the next 2 weeks. Finally, increase usage to every night. Crystal Retinal 20 should only be used by those who have comfortably finished at least 2 tubes of Crystal Retinal 10.


Additional Tips: Always use a broad-spectrum sunscreen every morning while using this product, as retinal can increase skin sensitivity to the sun.
Patch testing prior to use is advised to check for any adverse reactions. Refer to medik8.co/patch for a detailed guide on patch testing.
For optimal results, combine Crystal Retinal 20 with other products in the Medik8 range, particularly those recommended in the Medik8 Wrinkle Repair regime guide.
One tube typically lasts up to 3 months when used nightly (after the initial phasing-in period).

Ingredients:
Caprylic/Capric Triglyceride, Cyclopentasiloxane, Dimethicone Crosspolymer, PPG-12/SMDI Copolymer, Bisabolol, Retinal, Squalane, Tocopheryl Acetate, Hydroxymethoxyphenyl Decanone, Phenoxyethanol, Ethylhexylglycerin. WARNINGS: Retinal can cause skin irritation, redness, dryness, and peeling, especially when first starting use. It is crucial to introduce this product gradually and start with a lower concentration if you are new to retinoids. Always wear sunscreen with a high SPF during the day when using this product, as retinal increases sun sensitivity. Avoid using this product if you are pregnant, breastfeeding, or planning to become pregnant. Consult with a dermatologist if you have any concerns or experience excessive irritation. Avoid contact with eyes. If contact occurs, rinse thoroughly with water. Store in a cool, dark place.

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A company that was born from the passion for better skin health. Their motto is that everyone should feel safe and beautiful in their own skin, that’s why they work tirelessly to create powerful care products that offer quick and visible results.

From within the company's super laboratory in the UK innovation and research go hand in hand to obtain exciting formulas never seen before.

Its mission is to make sure that nobody has to choose between beautiful cosmetics and real results. What does this mean? Well, each Medik8 product combines great texture, beautiful fragrance, and powerful ingredients along with the best cutting-edge science, so that you are able to enjoy a beauty ritual as well as experiencing professional results.

Medik8 has a very particular philosophy, the CSA philosophy. That is to say, to use vitamin C and solar protection in the day and, at night, vitamin A. It's that simple!

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Average product rating: 9 - Excellent
  • My skin looks so much brighter after using this! Love it!

    Mia W. | 11/07/2025

  • Love the sleek tube. It has a very faint, pleasant scent. The serum is lightweight and absorbs beautifully, leaving my skin feeling hydrated, not greasy...

    Robert | 05/07/2025

  • This serum has a lovely, silky texture that absorbs quickly without feeling greasy. My skin feels instantly smoother

    Ava W. | 08/06/2025

  • Transaction was easygoing. I had no need to contact Customer Service

    KayLondon |  01/06/2026 09:57:50

  • It's a good

    Navid |  29/05/2026 19:45:28

  • Customer Service is really good

    Navid |  28/05/2026 19:50:45

  • Customer service is very good

    Navid |  26/05/2026 18:45:43

  • Anyone need to have got the customer service because quickly answer you

    Navid |  26/05/2026 18:41:45

  • Customer service as usual it's very good

    Navid |  26/05/2026 18:38:02

  • Everything was alright.

    Adam |  26/05/2026 13:54:11

  • Good.

    Sree Ganesh |  25/05/2026 07:17:11

  • Customer service I can always is very good nothing problem with them

    Navid |  23/05/2026 14:39:00

  • Customer service really good and helpful thank you for everyone

    Navid |  23/05/2026 14:36:18

  • Customer service is really bang on because always when I got the problem they sorted out as soon as possible I never had the problem with the beauty the shop

    Navid |  23/05/2026 14:33:49

  • Excellent price v high street

    Zoe |  21/05/2026 17:05:07

  • Royal Mail : Ok

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  • Royal Mail : The delivery of the first part of the order was good as Royal Mail is generally a very good carrier.

    Thomas Neil | 28/12/2025 23:01:18

  • Royal Mail : Excellent

    Darren | 28/12/2025 13:13:51

  • Royal Mail : Great

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  • Royal Mail : Excellent

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  • Royal Mail : Good

    Kyran | 15/12/2025 19:52:39

  • Royal Mail : Top delivery

    Craig | 14/12/2025 09:42:38

  • Royal Mail : It is not express but delivered safely by Royal Mail

    Fiona | 14/12/2025 09:04:49

  • Royal Mail : Arrived on time with good updates

    Jeff | 29/09/2025 09:30:07

  • Royal Mail : Delivered on time with regular updates..

    ElsA | 28/09/2025 09:32:12

  • Royal Mail : No issues

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  • Royal Mail : My perfume arrived on time and was well packaged.

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