Medik8 Crystal Retinal 20
Medik8 Crystal Retinal 20
Medik8 Crystal Retinal 20
Medik8 Crystal Retinal 20
Medik8 Crystal Retinal 20
Medik8 Crystal Retinal 20


Medik8 Crystal Retinal 20

Sale price$165.75 Regular price$195.00
Save $29.25

Or 4 interest-free payments

Zip it now, pay later

4 interest-free payments


Achieve enhanced results with Medik8 Crystal Retinal 20, the strongest and most potent vitamin A formula developed by industry experts. Rediscover your youthful skin with Medik8's advanced innovation, featuring a 0.2% concentration of vitamin A.

Experience the ultimate strength of vitamin A with Medik8 Crystal Retinal 20. This groundbreaking overnight serum features a 0.2% concentration of stabilized retinal, a powerful derivative of vitamin A that delivers next-generation anti-ageing results. Its unmatched potency can achieve clinical-grade results up to 11 times faster than traditional retinol products. Combined with hyaluronic acid, glycerin, and vitamin E, it hydrates and firms the skin, improving texture and reducing fine lines and wrinkles. In just 4 weeks, this serum will help you achieve a clearer, more radiant, and noticeably younger-looking complexion.
Ideal for those seeking to enhance their outcomes from Crystal Retinal 10 after 3 months of usage or two full containers of Crystal Retinal 10, the Crystal Retinal 20 is now available in five different potencies. These strengths include Crystal Retinal 1 (for sensitive skin or Vitamin A beginners), Crystal Crystal 3 (standard strength Vitamin A), Retinal 6 (high-strength Vitamin A), and Crystal Retinal 10 (ultra-high strength Vitamin A), as well as the newest addition of Crystal Retinal 20 (extreme strength Vitamin A) reserved for advanced users.

Medik8 Crystal Retinal 20 is suitable for all skin types and those who are experts to using retinol products. (Advanced vitamin A users only).

Medik8 Crystal Retinal 20 is not suitable for use during pregnancy or when breastfeeding.


Retinol and retinoic acid are both powerful ingredients for achieving youthful-looking skin. While retinoic acid is only available with a prescription, vitamin A in the form of retinol skincare products can also provide similar results. However, Crystal Retinal, which is crafted with retinaldehyde, requires just one conversion to retinoic acid, making it highly potent and effective at triggering cellular regeneration and collagen production to combat visible signs of aging. This advanced active, encapsulated in a crystal structure, is carefully broken down by the skin's enzymes for maximum stability and gradual release while you sleep, reducing irritation. Along with hydrating hyaluronic acid and soothing vitamin E, Crystal Retinal targets fine lines and wrinkles for visibly youthful skin. Unlike other forms of vitamin A, retinaldehyde also boasts potent antibacterial properties, effectively targeting acne-causing bacteria for a visibly clear complexion.

Why is the Medik8 Crystal Retinal unique and potent? As the leading authority in Vitamin A, Medik8 has engineered Retinal - a faster-acting alternative to traditional Retinol forms. With the molecule being the closest to Retinoic Acid, it only requires one conversion to become Vitamin A's active form. Unlike retinol, which needs to be converted to retinaldehyde and then to Retinoic Acid within the skin, Crystal Retinal uses a Crystal Encapsulation System to gradually release the retinaldehyde, minimising potential irritation.

Medik8 Crystal Retinal 20 benefits:

  • Reduce the appearance of fine lines and wrinkles in just 4 weeks
  • Works 11x faster than ic forms of retinol
  • Resurfaces skins, reducing the appearance of fine lines and wrinkles
  • Improves skin tone
  • Increases collagen production
  • Hydrates skin to help visibly plump and smooth skin
  • Reduces breakouts by banishing bacteria
  • Innovative crystal encapsulation system that slowly releases retinaldehyde into the skin for minimal irritation
  • Lightweight, creamy orange formula
  • Suitable for most skin types
  • Only use in the evening
  • A supercharged derivative of vitamin A
  • Comparable results to clinical-grade vitamin A
  • This potent overnight serum has the power to deliver salon-worthy results from the comfort of your own home. The lightweight texture of this anti-aging serum absorbs instantly into skin and should only be used in the evening before a moisturiser and after cleansing


Key Ingredients 

0.2% Encapsulated Retinaldehyde proven to work up to 11 times faster than retinol, retinaldehyde is a revolutionary new form of vitamin A that targets fine lines and wrinkles, pigmentation and uneven skin texture.
 Hyaluronic acid with a unique ability to attract and retain more than 1,000 times its own weight in water, hyaluronic acid draws moisture from the surrounding atmosphere into the skin, leaving the complexion feeling both nourished and supple.
 Vitamin E an oil-soluble antioxidant, vitamin E can quench free radicals on the skin while stabilising retinaldehyde for optimal power.

Retinaldehyde (0.2%), Hyaluronic Acid, Glycerin and Vitamin E Aqua (Water), Caprylic/Capric Triglyceride, Glycerin, Isododecane, Cyclodextrin, Cetearyl Alcohol, Cetearyl Olivate, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Sorbitan Olivate, Tocopheryl Acetate, Squalane, Sodium Hyaluronate, Retinal, 3-O-Ethyl Ascorbic Acid, Daucus Carota Sativa (Carrot) Seed Oil, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Ethylhexylglycerin, Pentylene Glycol, Vanilla Planifolia (Vanilla) Fruit Extract, Hydroxypropyl Methylcellulose, Rubus Chamaemorus (Cloudberry) Seed Oil, Sodium Polyaspartate, Tetrahexyldecyl Ascorbate, Dipteryx Odorata (Tonka) Bean Extract, BHT, Polyhydroxystearic Acid, Disodium EDTA, Hydroxyacetophenone, Titanium Dioxide, Phenoxyethanol, Alumina, Lonicera Caprifolium (Honeysuckle) Flower Extract, Isostearic Acid, Lecithin, Lonicera Japonica (Honeysuckle) Flower Extract, Polyglyceryl-3 Polyricinoleate, Stearic Acid, Coumarin, CI 14700 (Red 4).

We believe in the right product for the right person. We want our product information to be useful to you, so we have done our best to provide you with the most up to date ingredients list.

Please note that from time to time, products are innovated without notice. For the most accurate information please consult the product box. 

If you spot an error, please let us know! We will update this ingredients list as soon as possible.


After cleansing in the evening, massage a small amount of Crystal Retinal 20 across the face, neck and décolletage. Allow to absorb before applying your moisturiser. You should be comfortably using Crystal Retinal 10 every night for 3 months or completed 2 full tubes before you consider moving up to Crystal Retinal 20. Use twice a week for the first 2 weeks, every other night for the next 2 weeks, then every night. Always wear sunscreen the following morning while using this product, and for 1 week after. Consult a doctor if breastfeeding or pregnant.

If this product is sealed, please ensure the seal is intact prior to using the product.


All Orders Same Day Dispatch by 2pm M-F (Sydney Business Days) any orders placed after 2pm will leave the following (Sydney Business Day). Please note during big sale periods this can be delayed by a day or two.

FREE for orders $49+ via Australia Post e-Parcel road. Express Post Air add $6.95 via Australia Post

Any orders under $49 will have two options for shipping $4.95 e-Parcel post standard shipping by road via Australia post or $9.95 Express Post express shipping by air via Australia post.

If it's not right and you haven't opened it yet, you are welcome to Return It within 30 days. Reach out to our team for authorisation prior to returning to us in original sealed condition.

Already opened or used the product? We can only accept returns if product is faulty, not if you dislike the product! please reach out to us first and we can discuss your options as each brand is different. We can help you understand if a return is possible.

We unfortunately cannot accept returns without return authorisation prior to sending to us.

Customer Reviews

Based on 15 reviews
Best retinal!

I have used many retinol creams and serums and the Medik8 Crystal Retinal is by far the best. Retinal, which is in this serum, is more potent than retinol. The retinal in this serum is also time released so there is no irritation to my skin. Having said that, anyone new to retinol/retinal should start at the lower concentrations and work their way up gradually. It’s worth it - the results are amazing and speak for themselves!


Extremely pleased with this buy. Would highly recommend it, 10 out of 10.

Julie Herrick
Still waiting!

I have still not received my product!

Gold Standard in Retinals

I have been using Medik8 Retinal 20 for a year now and the texture of my skin has never been better. Wrinkle and fine lines have reduced with no irritation to the skin. I highly recommend this product!!

Rosie Dixon

Excellent Product