Free delivery on orders over £100
Official stockist
Next day delivery | Order weekdays before 3pm
Flexible payment options
Free ongoing skincare support

Medik8

Crystal Retinal Expert 24

£109.00 30ml

Flexible payment options including

Key Benefits

  • Visibly diminishes fine lines and wrinkles, promoting firmer, smoother, and more youthful-looking skin over time.
  • Powered by retinaldehyde, a potent vitamin A derivative that works up to 11 times faster than conventional retinol for faster results.
  • Refines skin texture, boosts radiance, and evens out the complexion for a healthier, luminous appearance.
  • Medik8’s patented stability system preserves serum potency, ensuring consistent effectiveness until the last drop.
  • The highest-strength serum in the Medik8 Crystal Retinal range, designed for experienced vitamin A users seeking maximum anti-ageing results safely.
Targets
  • Ageing skin Ageing skin
  • Pigmentation Pigmentation
  • Dull skin Dull skin
  • Oily skin Oily skin
When to use
  • Evening Evening
Product details

Medik8 Crystal Retinal 24 is the strongest serum in the Medik8 Crystal Retinal collection, formulated for highly experienced vitamin A users. With 0.24% retinal, it works up to 11 times faster than standard retinol* to target fine lines, uneven texture, pigmentation, and loss of firmness. Medik8’s patented stability system ensures the serum remains effective and safe throughout its use.

 

Recommended only for those who have successfully built tolerance with lower strengths and are ready to maximise their anti-ageing routine.

 

Explore our Medik8 collection to find the full range of retinal strengths and start your tailored vitamin A journey.

 

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

Directions for use

After cleansing in the evening, apply 2 pumps of Medik8 Crystal Retinal 24 evenly to the face and neck. Follow with Medik8 Advanced Night Restore, which is designed to be applied after vitamin A for deep hydration and nourishment.

Introduce the product gradually into your routine as tolerated:

  • Use twice a week for the first 2 weeks.
  • Every other night for the next 2 weeks.
  • Then nightly as tolerated.

Always use a broad-spectrum sunscreen the following morning. For personalised guidance, book a Face Dr skincare consultation with one of our Skin Experts.

Key ingredients
  • Retinaldehyde – A fast-acting form of vitamin A that helps smooth wrinkles, improve skin texture, even skin tone, and enhance firmness, working significantly quicker than traditional retinol.
  • Hyaluronic Acid – Deeply hydrates by attracting water to the skin, leaving it plump, soft, and refreshed overnight.
  • Vitamin E – Provides antioxidant protection, helping defend against environmental stressors while supporting the effectiveness of other active ingredients.
  • Glycerin – Maintains skin hydration by locking in moisture, ensuring the complexion feels smooth and nourished.
All 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. Please note: This ingredient list is sourced directly from the brand's website. While we make every effort to ensure the information is accurate and up to date, formulations may change over time. For the most current and reliable details, please contact us at hello@myfacedr.com.

Pairs well with

Medik8 Advanced Night Restore™
Rejuvenating Multi-Ceramide Night Cream

Advanced Night Restore

£60.00 50ml

You may also like

Bestseller Consult Product
ZO Daily Power DefenseZO Daily Power Defense
ZO Daily Power Defense
£125
Bestseller Consult Product
ZO Complexion Renewal PadsZO Complexion Renewal Pads
ZO Complexion Renewal Pads
£50
Bestseller Consult Product
ZO Exfoliating CleanserZO Exfoliating Cleanser
ZO Exfoliating Cleanser
£43
Bestseller
Professional-C® Serum 20%Professional-C® Serum 20%
Professional-C® Serum 20%
£170
Watch the video

Experts explain 

Learn more from Medik8 about Crystal Retinal 24 on YouTube.

Experts explain

Reviews

Crystal Retinal Expert 24 FAQs

What is Medik8 Crystal Retinal 24 and what does it do?

Medik8 Crystal Retinal 24 is the highest-strength vitamin A night serum in the Medik8 Crystal Retinal range, formulated for advanced users who have already built tolerance with lower strengths. This serum contains 0.24% retinal, which works up to 11 times faster than standard retinol to visibly smooth fine lines, improve skin texture, even out skin tone, enhance firmness, and boost radiance. Medik8’s patented stability system ensures the serum remains effective and safe throughout its use.

Can I use Medik8 Crystal Retinal 24 with other Medik8 products?

Absolutely. Medik8’s philosophy is all about timing and synergy: vitamin C is best used in the morning to protect and brighten your skin, while vitamin A, like Crystal Retinal 24, is designed for evening use to support your skin’s natural overnight repair processes. Following this approach allows each product to work at its full potential, minimises irritation, and helps maintain a balanced, healthy-looking complexion. This method is simple, effective, and forms the foundation of a safe, results-driven skincare routine.

Who should use Medik8 Crystal Retinal 24?

This serum is recommended only for experienced vitamin A users who have successfully tolerated lower strengths. Beginners should start with Crystal Retinal 1, 3, or 6 to gradually build tolerance.

Is Medik8 Crystal Retinal 24 suitable for sensitive skin?

Due to its high concentration, it may be too strong for sensitive skin or for those new to vitamin A. For a gentler option, consider Crystal Retinal 1 or 3, and consult a Face Dr skin expert to tailor the right routine.

Can I use Medik8 Crystal Retinal 24 during pregnancy or breastfeeding?

Vitamin A derivatives are generally not recommended during pregnancy or breastfeeding. Consult your doctor before use, and book a Face Dr skincare consultation for personalised advice and alternative options.

Is Medik8 Crystal Retinal 24 suitable for sensitive skin?

This serum is intended for advanced users who have already built tolerance with lower strengths. You can explore our Medik8 collection and begin with a gentler strength if needed. For personalised advice and to ensure this routine suits your skin, book a Face Dr skincare consultation.

How long before I see results with Medik8 Crystal Retinal 24?

With consistent use, Medik8 Crystal Retinal 24 can help improve fine lines, skin texture, and overall radiance within 4–12 weeks. Results will vary depending on your skin type, routine, and how regularly you apply the serum. To get the most out of your retinal serum, consider integrating complementary Medik8 products into your regimen. For personalised guidance, booking a Face Dr skincare consultation is recommended to ensure your routine is perfectly suited to your skin.

Does Medik8 Crystal Retinal 24 improve skin firmness?

Yes. With regular use, the high-strength retinal actively supports collagen production, helping to smooth fine lines and enhance skin elasticity. Over time, this contributes to a firmer, more youthful-looking complexion.

Can Medik8 Crystal Retinal 24 be used around the eye area?

Medik8 Crystal Retinal serums are designed specifically for use on the face. For targeted overnight care around the eyes, we recommend Medik8 Crystal Retinal Ceramide Eye, available in three strengths. This eye cream visibly brightens dark circles while smoothing and firming the delicate under-eye skin for a more refreshed, youthful appearance. Explore our Medik8 collection to learn more.
Care that's more than skin deep

Hit your skin goals, speak to our experts

Face Dr Hero Media
Decal

Review from our community