Medik8 Crystal Retinal 20 Vitamin A Night Serum 30ml

Medik8 Crystal Retinal is a powerful Vitamin A night serum clinically proven to deliver visible anti-ageing results.  Read More
Special Price £79.20 £99.00 Save £19.80
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KEY BENEFITS

  • Speeds up skin cell renewal for a smoother texture
  • Visibly reduces fine lines and wrinkles
  • Brightens dull, uneven skin tone
  • Supports collagen production for firmer skin
  • Hydrates and strengthens the skin barrier overnight
  • Gentle yet highly effective, suitable for most skin types

KEY INGREDIENTS

  • Retinaldehyde (Encapsulated Retinal): A next-generation form of Vitamin A, proven to work up to 11x faster than classic retinol.
  • Hyaluronic Acid: Deeply hydrates and plumps the skin to reduce the look of fine lines.
  • Glycerin: Attracts moisture for long-lasting hydration and a supple feel.
  • Vitamin E: Antioxidant protection to support skin barrier health and protect against free radicals.

HOW TO USE

  • After cleansing in the evening, apply a small amount (pea-sized) to the face and neck.
  • Follow with your moisturiser.
  • Always apply SPF the next morning, as Vitamin A increases sun sensitivity.
  • Use 2–3 times a week initially, gradually increasing to nightly use as tolerated.

    Note: Do not use if pregnant or breastfeeding. 

Available in various strenghts

Medik8 Crystal Retinal is available in a progressive range of strengths to suit all skin types and Vitamin A experience levels:

  • Crystal Retinal 1: For sensitive skin and beginners
  • Crystal Retinal 3: For those starting their Vitamin A journey
  • Crystal Retinal 6: For experienced Vitamin A users
  • Crystal Retinal 10: For advanced users
  • Crystal Retinal 20: High-strength (only for seasoned users with professional recommendation)

Users are encouraged to start low and move up gradually to build tolerance and maximise results.

Works Well With

  • Medik8 Gentle Cleanse – gentle prep without stripping skin
  • Medik8 Hydr8 B5 Intense – for deep hydration and barrier support
  • Medik8 Advanced Night Restore – antioxidant-rich moisturiser to complement retinal
  • Medik8 Press & Glow – gentle PHA toner that boosts radiance without irritation
  • Medik8 Physical Sunscreen SPF 50+ – essential daytime protection

How to Layer Medik8 Press & Glow in Your Routine:

 

PM Routine Example:

 

  • Cleanser - Medik8 Sleep Glycolic
  • Hydrating Serum (e.g., Medik8 Hydr8 B5)
  • Moisturiser
  • Optional: Facial Oil

Avoid using with retinol, other exfoliants, or vitamin C on the same night.

Good to Know

Medik8 Products do not contain Artificial Fragrance & Synthetic Colours. They are Paraben & Alcohol Free, and Certified by the Vegan Society.

 

Stocked by Authorized Medik8 Stockist – Beautythings UK
Beautythings UK is an official Medik8 retailer, ensuring you receive 100% genuine, high-performance skincare. Curated by skincare specialist Jess Southall, our collection is handpicked to offer expert-approved skincare solutions.

About Me
I’m Jess, a skincare expert with over 30 years in the beauty industry and founder of BeautyThings UK. I’m passionate about making top-quality, results-driven skincare accessible to everyone. I carefully select brands I trust—like Medik8—because I know they deliver visible, lasting results without unnecessary fuss.

 
About a Good Skincare Routine


Skincare doesn’t need to be complicated—but it should be consistent. A strong routine balances:

  • Cleansing, opting for a double cleanse and using a Super Soft Microfibre Face Cloth
  • Targeted treatments like acids or serums. Am and Pm will differ, Vitamin C in the monrig & Retinols at night.
  • Hydration. Choose a moisturiser to suit your skin for day time or Night time. 
  • Protection (always SPF!)
  • Products like Medik8 Sleep Glycolic are powerful tools that slot into a good nightime skincare system to renew, resurface, and reveal your best skin over time.

FAQs – Medik8 Liquid Peptides Advanced MP Serum

What skin concerns does this serum target?

This serum helps reduce fine lines, boost collagen, hydrate skin, and improve firmness. It’s ideal for signs of ageing and dull, dehydrated skin.

Can I use this serum every day?

Yes, Medik8 Liquid Peptides is designed for twice daily use—morning and evening—for best results.

How do I layer this in my skincare routine?

Apply after cleansing and before moisturiser. Use 6 drops on damp skin, followed by your chosen moisturiser and SPF in the morning.

Is this suitable for sensitive skin?

Yes, it’s formulated to be gentle and hydrating. However, always patch test first if your skin is reactive.

Can I use this with other actives like retinol or vitamin C?

Yes, Liquid Peptides pairs well with most active ingredients. Use vitamin C in the morning and retinol at night to avoid overlap.

More Information
Skin Concern Signs of skin Ageing, Dryness & Dehydration, Uneven Skin Tone, Hyperpigmentation & Dark Spots, Fine Lines & Wrinkles
Product Category Serums & Boosters, Toners
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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. *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.

 

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  • FREE - Tracked Royal Mail Second Class Orders Over £50
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£2.95 - Tracked Royal Mail First Class

  • £5.95 - Royal Mail Next Day (Order before 2 pm Mon-Thur)

  • £8.95 - Royal Mail Saturday Delivery (Order before 2 pm Mon-Fri)

Orders Under £50

  • £3.95 - Tracked Royal Mail Second Class

  • £4.95 - Tracked Royal Mail First Class
  • £8.95 - Royal Mail Next Day (Order before 2 pm Mon-Thur)

  • £10.95 - Royal Mail Saturday Delivery (Order before 2 pm Mon-Fri)

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When Will your order be posted? Most orders are posted out the same day if you order before 2 pm. Your order may be posted out the next day if the order is late in the day or there is a low stock level. As we receive new stock on a daily basis then there is no need to notify you. If for some reason the item you have ordered is going to be out of stock for some time, you will be notified of this and given the option to wait or cancel your order. Next Day Delivery orders must be placed by 2 pm.

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