Festive Kit
A Medik8 "Age-Defying Essentials" gift box wrapped with a blue ribbon on a reflective surface against a dark blue background. The white box features a dark blue center panel displaying the printed products inside: an Advanced Pro-Collagen+ Peptide Cream jar, a Crystal Retinal 6 tube, and a Liquid Peptides Advanced MP deluxe sample. Text highlights "Ultimate Skin Renewing Heroes."
A Medik8 "Age-Defying Essentials" gift box displayed on a white background with a dark blue center and hexagonal graphics, showing the printed products inside. An Advanced Pro-Collagen+ Peptide Cream jar, a Crystal Retinal 6 tube, and a Liquid Peptides Advanced MP deluxe sample stand loose beside the box.
Three Medik8 products wrapped in a blue ribbon against a dark blue background, with text highlighting key benefits for each. The Crystal Retinal 6 tube "Visibly firms, brightens & smooths the skin," the Liquid Peptides Advanced MP deluxe sample "Delivers advanced deep-set wrinkle reduction," and the Advanced Pro-Collagen+ Peptide Cream jar "Supports visible skin firmness & elasticity."
An infographic titled "How to Layer" against a dark blue background with a blue ribbon. The AM routine shows a Surface Radiance Cleanse tube, Liquid Peptides Advanced MP pump bottle, C-Tetra Advanced serum bottle, and Advanced Day Ultimate Protect tube. The PM routine features a Lipid-Balance Cleansing Oil pump bottle, Liquid Peptides Advanced MP pump bottle, Crystal Retinal tube, and Advanced Pro-Collagen+ Peptide Cream jar.
A before-and-after close-up of a participant's eye and mouth area, showing improvement in visible wrinkles after 10 minutes, highlighted by dotted circles. Text states "100% showed clinical improvement in visible wrinkles in 10 minutes." A Liquid Peptides Advanced MP deluxe sample is in the bottom right corner against a dark blue background with a blue ribbon.
A before-and-after close-up of a participant's forehead after using 1 tube, showing smoother skin and improved texture, highlighted by a dotted circle. Text states "97% of people felt their skin had a more youthful appearance." A Crystal Retinal 6 tube is shown in the bottom right corner against a dark blue background with a blue ribbon.
A before-and-after close-up of a participant's eye and cheek area over 7 days, demonstrating reduced wrinkle depth, highlighted by a dotted circle. Text states "7 days to visibly reduce the depth of wrinkles." An Advanced Pro-Collagen+ Peptide Cream jar sits in the bottom right corner against a dark blue background with a blue ribbon.
A display of three Medik8 festive gift boxes adorned with black ribbons against a light grey background, titled "Visible Results, Wrapped. Discover Our Festive Collection." It features the blue Retinal Recharge box with two tubes, the red Rejuvenation Routine box with a cream jar, tube, and pump bottle, and the green Nighttime Nourish box with a tube and cream jar.
A Medik8 "Age-Defying Essentials" gift box wrapped with a blue ribbon on a reflective surface against a dark blue background. The white box features a dark blue center panel displaying the printed products inside: an Advanced Pro-Collagen+ Peptide Cream jar, a Crystal Retinal 6 tube, and a Liquid Peptides Advanced MP deluxe sample. Text highlights "Ultimate Skin Renewing Heroes."
A Medik8 "Age-Defying Essentials" gift box displayed on a white background with a dark blue center and hexagonal graphics, showing the printed products inside. An Advanced Pro-Collagen+ Peptide Cream jar, a Crystal Retinal 6 tube, and a Liquid Peptides Advanced MP deluxe sample stand loose beside the box.
Three Medik8 products wrapped in a blue ribbon against a dark blue background, with text highlighting key benefits for each. The Crystal Retinal 6 tube "Visibly firms, brightens & smooths the skin," the Liquid Peptides Advanced MP deluxe sample "Delivers advanced deep-set wrinkle reduction," and the Advanced Pro-Collagen+ Peptide Cream jar "Supports visible skin firmness & elasticity."
An infographic titled "How to Layer" against a dark blue background with a blue ribbon. The AM routine shows a Surface Radiance Cleanse tube, Liquid Peptides Advanced MP pump bottle, C-Tetra Advanced serum bottle, and Advanced Day Ultimate Protect tube. The PM routine features a Lipid-Balance Cleansing Oil pump bottle, Liquid Peptides Advanced MP pump bottle, Crystal Retinal tube, and Advanced Pro-Collagen+ Peptide Cream jar.
A before-and-after close-up of a participant's eye and mouth area, showing improvement in visible wrinkles after 10 minutes, highlighted by dotted circles. Text states "100% showed clinical improvement in visible wrinkles in 10 minutes." A Liquid Peptides Advanced MP deluxe sample is in the bottom right corner against a dark blue background with a blue ribbon.
A before-and-after close-up of a participant's forehead after using 1 tube, showing smoother skin and improved texture, highlighted by a dotted circle. Text states "97% of people felt their skin had a more youthful appearance." A Crystal Retinal 6 tube is shown in the bottom right corner against a dark blue background with a blue ribbon.
A before-and-after close-up of a participant's eye and cheek area over 7 days, demonstrating reduced wrinkle depth, highlighted by a dotted circle. Text states "7 days to visibly reduce the depth of wrinkles." An Advanced Pro-Collagen+ Peptide Cream jar sits in the bottom right corner against a dark blue background with a blue ribbon.
A display of three Medik8 festive gift boxes adorned with black ribbons against a light grey background, titled "Visible Results, Wrapped. Discover Our Festive Collection." It features the blue Retinal Recharge box with two tubes, the red Rejuvenation Routine box with a cream jar, tube, and pump bottle, and the green Nighttime Nourish box with a tube and cream jar.
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Age-Defying Essentials

  • Smooth
  • |
  • Renew
  • |
  • Rejuvenate
Ultimate Skin Renewing Heroes

What’s Inside: Advanced Pro Collagen+ Peptide Cream (full size), Crystal Retinal 6 (full size) and Liquid Peptides Advanced Deluxe Sample

Yours for £113, Worth £151

Reveal visibly smoother, firmer and more youthful-looking skin with this powerful age-defying trio. Powered by next-generation peptides, high-performance vitamin A and advanced collagen-supporting technology, this results-driven routine works to target expression lines, visible wrinkles and loss of firmness.

Liquid Peptides Advanced MP, featuring breakthrough Dual MiniProteinsTM technology, redefines wrinkle reduction. Clinically proven to diminish the appearance of expression lines in 10 minutes & deep-set wrinkle reduction in 8 weeks.[1]

Powered by stabilised retinaldehyde, proven to work up to 11x faster than retinol[2], Crystal Retinal 3 delivers age-defying results while remaining gentle on the skin.

Completing the routine, Advanced Pro-Collagen+ Peptide Cream helps to increase collagen production by 45%[5] and promote optimal skin longevity to prevent the appearance of future signs of skin ageing.[7] helps support visible resilience with collagen-supporting peptides, leaving skin visibly firmer and rejuvenated.
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Reasons to shop Medik8

Free UK delivery over £25
15% off your first order
"No questions asked" easy 30 day returns
Key Benefits
Fast Wrinkle-Reducing Power

See clinically proven wrinkle reduction with just 1 tube.[3]

Rapid Expression Line Reduction

100% of those surveyed showed a clinical improvement of visible wrinkles in 10 minutes.[4]

Increased Skin Longevity

Engineered to support collagen production, the foundation of firm, resilient skin for visible strength that lasts.

Radiant, Youthful Skin

Delivers remarkable visible improvement in texture, brightness, firmness & clarity.

Lasting Deep-Set Wrinkle Reduction

Helps to build elasticity & firmness for visible deep-set wrinkle reduction in 8 weeks. [1]

Proven Results
20% reduction in visible wrinkles[3]
20% reduction in visible hyperpigmentation[3]
10 minutes to diminish the appearance of expression lines[1]
8 weeks to a visible reduction in deep-set wrinkles[1]
45% increase in collagen production[5]
[1] Proven via independent clinical study on Liquid Peptides Advanced MP tested on 34 participants at 10 minutes & 8 weeks.
[2] G. Siegenthaler et al., Retinol and retinal metabolism, Biochemical Journal, 1990, 268, pp 371-378.
[3] Proven via independent clinical study on Crystal Retinal 6. Tested on 33 participants over 12 weeks.
[4] Proven via independent clinical study on Liquid Peptides Advanced MP tested on 20 participants at 10 minutes & 8 weeks.
[5] Proven via ex vivo collagen study using Advanced Pro-Collagen+ Peptide Cream
[6] Proven via independent consumer study conducted over 8 weeks on 44 participants who have previously had injectable anti-wrinkle treatments. Those who have had neurotoxin injectables agree that their skin looks smoother and firmer when using the serum.
[7] Proven via independent clinical study on Advanced Pro-Collagen+ Peptide Cream on 60 volunteers over 1 week.
[8] Proven via independent consumer study on Liquid Peptides Advanced MP conducted over 8 weeks on 91 participants.
Please Note: Product packaging shown may be different to the product received due to regional variations.
How to Use

Step 1 - Cleanse
Begin with your preferred cleanser; we love Surface Radiance Cleanse. Gently massage onto damp skin and rinse thoroughly.

Step 2 - Target Expression Lines
Apply Liquid Peptides Advanced MP morning and evening after cleansing. Massage evenly across the face, neck and decolletage and allow to absorb.

Step 3 - Renew Overnight (PM)
In the evening, apply 2 pumps of Crystal Retinal across the face and neck after Liquid Peptides Advanced MP. Allow to absorb fully before applying moisturiser.

Step 4 - Nourish & Support Skin Structure
Finish with Advanced Pro-Collagen+ Peptide Cream, applying evenly across the face, neck and decollegtage using upward strokes.

Step 5 - Build Gradually
If new to vitamin A, introduce Crystal Retinal gradually: use twice weekly for the first 2 weeks, every other night for the next 2 weeks, then nightly. You should always use sunscreen the next morning after using vitamin A.

We recommend using at least 1 tube of your current strength before moving up the ladder to the next strength.

Available Strengths

Only at Medik8, you can ladder up your visible age-defying results over time with Crystal Retinal's 6 progressive strengths. 

Offering 0.01% - 0.24% retinaldehyde, there’s a strength for everyone; from very sensitive skins to expert users. 

Take our easy quiz to find your strength. 

Key Ingredients
Retinaldehyde

Proven to work up to 11 times faster than standard retinol,[2] retinaldehyde (retinal for short) is a revolutionary form of vitamin A that effectively targets the appearance of fine lines and wrinkles, hyperpigmentation, uneven skin texture and loss of firmness - without irritation.

Expression Line MiniProteinTM (Part of Dual MiniProteinsTM)

Helps to relax & smooth dynamic expression lines for visibly reduced wrinkle depth.

GF MiniProtein™

Visibly improves the appearance of skin structure over time by helping to boost skin’s collagen, elastin & hyaluronic acid levels.

NAD+ Longevity Booster

Supports skin longevity to delay visible skin ageing, preserving the skin’s structure and long-term quality.

GF MiniProtein™

Visibly improves the appearance of skin structure over time by helping to boost skin’s collagen, elastin & hyaluronic acid levels.

NAD+ Longevity Booster

Supports skin longevity to delay visible skin ageing, preserving the skin’s structure and long-term quality.

Full List of Ingredients
Age-Defying Essentials
Ultimate Skin Renewing Heroes

Advanced Pro-Collagen+ Peptide Cream:

Aqua (Water), Squalane, Caprylic/Capric Triglyceride, Lavandula Angustifolia (Lavender) Flower Water, Glycerin, Dimethicone, Stearic Acid, Phytosteryl Oleate, C12-16 Alcohols, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Maltodextrin, Carnosine, Rosmarinus Officinalis (Rosemary) Water, Cetearyl Alcohol, Butyrospermum Parkii (Shea) Butter, Ceramide NP, Linoleic Acid, Cetearyl Olivate, Palmitic Acid, Behenyl Alcohol, Tocopheryl Acetate, Collagen Amino Acids, Micrococcus Lysate, Hydrogenated Lecithin, Oligopeptide-1, Sorbitan Olivate, Helianthus Annuus (Sunflower) Sprout Extract, Xanthan Gum, Citric Acid Monohydrate, Sodium Hyaluronate, Ethylhexylglycerin, Sodium Gluconate, Sodium Polyglutamate, Acetyl Glucosamine, Hydroxyacetophenone, Phytosterols, Sodium Lauroyl Lactylate, Lecithin, Cholesterol, Ceteareth-25, Ceramide AP, Phytosphingosine, Carbomer, Cetyl Alcohol, Behenic Acid, Ceramide NS, Ceramide EOP, Ceramide EOS, Caprooyl Phytosphingosine, Caprooyl Sphingosine, Phenoxyethanol, Ascorbyl Palmitate, Tocopherol, Glyceryl Stearate, Glyceryl Oleate, Citric Acid, Encapsulated Endonuclease, Polyglutamic Acid.

Crystal Retinal®:

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.

Liquid Peptides Advanced MP:

Aqua (Water), Glycerin, Dimethicone, Dimethyl Isosorbide, Butylene Glycol, Undecane, Arginine, Inulin, Microcrystalline Cellulose, Ceteareth-20, Tridecane, Tocopherol, Hydroxyacetophenone, Sodium Hyaluronate, Palmitoyl Tripeptide-38, Panthenol, Caprylic/Capric Triglyceride, Palmitoyl Tripeptide-5, Polyacrylate Crosspolymer-6, Palmitoyl Tripeptide-1, Pullulan, Tetrapeptide-21, Palmitoyl Tetrapeptide-10, Palmitoyl Tetrapeptide-7, Ammonium Polyacryloyldimethyl Taurate, Glyceryl Linoleate, Acetyl Hexapeptide-8, Pentapeptide-18, Oligopeptide-1, Arginine/Lysine Polypeptide, Sucrose Palmitate, Cetyl Palmitate, Phenoxyethanol, Ethylhexylglycerin, Carbomer, Copper Palmitoyl Heptapeptide-14, Heptapeptide-15 Palmitate, Benzotriazolyl Dodecyl P-Cresol, Polysorbate 80, Sorbitan Stearate, Polysorbate 20, Carnosine, Sodium Metabisulfite, Dunaliella Salina Extract, Helianthus Annuus (Sunflower) Seed Oil, Hydroxypropyl Cyclodextrin, Dimethicone/Vinyl Dimethicone Crosspolymer, Sodium Benzoate, Hydrogenated Lecithin, Caprylyl Glycol, Pantolactone, Xanthan Gum, Disodium EDTA, T-Butyl Alcohol, Potassium Sorbate, Citric Acid, Glyceryl Caprylate, Lactic Acid/Glycolic Acid Copolymer, Polyvinyl Alcohol, Phenylpropanol.

*Although we try our best to ensure this list of ingredients is accurate there may be product upgrades from time to time, or slight variants between different regions based on local laws, meaning the only definitive ingredient list is that which is printed on the product packaging.

*Although we try our best to ensure this list of ingredients is accurate there may be product upgrades from time to time, or slight variants between different regions based on local laws, meaning the only definitive ingredient list is that which is printed on the product packaging.
  • Clinically proven
  • No artificial fragrance
  • No synthetic colours
  • Dermatologically tested
  • Proven gentle formula
  • Complementary to neurotoxin injectables
  • Certified by the vegan society
Experts Recommended

"A true breakthrough in vitamin A skincare."

DANIEL ISAACS
Chief Product Officer & Founding Partner of Medik8
A circular headshot portrait of a man with light brown hair and green eyes, smiling neutrally. He is wearing a white lab coat with 'Medik8' embroidered on the pocket and a black button-up shirt. The background is white.

Complete Your Regime

Reviews

Frequently Asked Questions

When, and how, should I apply Crystal Retinal - do I need to phase it into my routine?

Yes. You should apply Crystal Retinal as part of your evening skincare routine - after cleanser, toner and serums, but before your moisturiser. We always recommend phasing Crystal Retinal into your existing skincare regimen; using it twice a week for two weeks, then every other night for two weeks, then every night after that. You do not have to phase in when moving up a strength within the Crystal Retinal ladder (e.g. when moving from Crystal Retinal 3 to Crystal Retinal 6).

What does Skin Longevity mean at Medik8?

At Medik8, skin longevity means supporting your skin to look and feel its best, not just today but for years to come. It’s our science-first approach to maintaining long-term skin quality by targeting key markers of youthful-looking, more resilient skin. Advanced Pro-Collagen+ Peptide Cream is precisely formulated with advanced actives that help stimulate the skin’s natural collagen production to support the essential building blocks of skin longevity and promote visible firmness, elasticity and reduce deep-set wrinkles.

Can I use Crystal Retinal every night?

As long as you build your use up gradually and start with the appropriate strength to begin with, you can use Crystal Retinal every night. For new users of Crystal Retinal, we strongly recommend that you phase-in application to enable your skin to build up a tolerance while avoiding any potential irritation. Use twice a week for the first two weeks, every other night for the following two weeks, then every night.

Can I use Crystal Retinal while pregnant or breastfeeding?

As a cosmetics company, we are unable to provide product advice in relation to medical conditions such as pregnancy or breastfeeding. We strongly recommend discussing the ingredients with your GP or midwife before use. We do, however, generally recommend avoiding vitamin A use while pregnant or breastfeeding, which is why we offer a plant-based vitamin A alternative - Bakuchiol Peptides.

Can I use Liquid Peptide Advanced MP while pregnant or breastfeeding?

As a cosmetics company, we are unable to provide product advice in relation to medical conditions such as pregnancy or breastfeeding. As general guidance, this product does not contain any ingredients that we would recommend avoiding during pregnancy, unless advised by your doctor.

Is Liquid Peptide Advanced MP suitable for use between neurotoxin treatments?

Yes, Liquid Peptides Advanced MP is ideal between neurotoxin treatments to maintain & enhance your results, providing a seamless bridge until your next appointment.[6]

Can I use Liquid Peptide Advanced MP while pregnant or breastfeeding?

As a cosmetics company, we are unable to provide product advice in relation to medical conditions such as pregnancy or breastfeeding. As general guidance, this product does not contain any ingredients that we would recommend avoiding during pregnancy, unless advised by your doctor.

Is Liquid Peptide Advanced MP suitable for use between neurotoxin treatments?

Yes, Liquid Peptides Advanced MP is ideal between neurotoxin treatments to maintain & enhance your results, providing a seamless bridge until your next appointment.[6]
Age-Defying Essentials