Medik8 Crystal Retinal 6 Serum – 30ml
Medik8 Crystal Retinal 6 Serum – 30ml
“Love this serum! My skin feels amazingly soft and smooth, and the overnight results are incredible. It’s super gentle on my skin and fits seamlessly into my night routine. Definitely a new favourite!”
- Next-Generation Retinal Technology
- Smooths, Firms & Brightens Skin
- Gentle, Fast-Acting Nightly Formula
Couldn't load pickup availability
-
Ordered
- - -
Order Ready
- - -
Delivered
Tracked Delivery
Fast, tracked UK shipping
60 Day Guarantee
Shop completely risk-free
Medik8 Crystal Retinal 6 Serum – 30ml
Featured on
Your Overnight Shortcut to Smoother Skin
Crystal Retinal 6 is a regular-strength retinal night serum that works up to 11x faster than retinol. It smooths fine lines, refines texture and brightens your skin while you sleep, in a lightweight formula that stays stable to the last drop.
Key Benefits
-
Smooths Fine Lines & Wrinkles
Super-strength vitamin A visibly reduces the look of fine lines with regular use.
-
Faster Than Retinol
Retinal (retinaldehyde) works up to 11x faster than standard retinol, so you see results sooner.
-
Radiant, Even-Looking Skin
Helps improve texture, brightness, firmness and clarity for a fresh, healthy glow.
-
Works Overnight
A lightweight night serum that gets to work while you sleep. Just add SPF in the morning.
-
Regular Strength for Vitamin A Users
Strength 6 is ideal once your skin is used to retinoids. Lower strengths are available for beginners and sensitive skin.
-
Effective to the Last Drop
A stable formula in an airless tube keeps the retinal fresh and potent until the end.
Proven Results
0%
felt their skin had a more youthful appearance[1]
0%
reduction in the appearance of wrinkles[1]
0%
reduction in visible hyperpigmentation[1]
0%
increase in visible skin firmness[1]
0%
felt Crystal Retinal was gentle on their skin[1]
[1] Results from Medik8's independent clinical study on Crystal Retinal 6, tested on 33 participants over 12 weeks. Individual results may vary.
Creator Routine
See It In Action
Watch how Crystal Retinal 6 fits into a real evening routine. It takes under a minute, with a lightweight texture that sinks straight in.
- 01
Start With Clean Skin
Cleanse and pat your skin completely dry before applying.
- 02
Apply 1–2 Pumps
Dot it across your face and neck, avoiding the eye area.
- 03
Press & Smooth In
Gently massage until absorbed, then follow with moisturiser.
Real Results
Real Skin. Real Results.
No filters, no flawless lighting. Just real people seeing what consistent retinal can do.
Smoother Texture
Skin looks visibly smoother and more refined with consistent nightly use.
Brighter, More Even Tone
A clearer, more radiant-looking complexion as dullness fades.
Softened Fine Lines
The look of fine lines softened for fresher, healthier-looking skin.
Photos from Crystal Retinal users. Individual results may vary.
Facebook testimonials
-
21h ago
I used Retinal 6 for 3 months before moving up to Retinal 10. It’s lightweight, fragrance-free and absorbs quickly, with no irritation on my acne-prone, reactive skin. Combined with other Medik8 favourites and azelaic acid, my skin has improved so much! Excited to see more results as I progress through the Retinal strengths. 🙌❤️
1.1k
26 Comments
LikeCommentShare -
22h ago
Absolutely the best. Unlike any other retinal creams in the market. This product is very gentle and effective
1.1k
26 Comments
LikeCommentShare -
1d ago
I will repurchase the Crystal Retinal. I currently use 6 and I see the difference! Reduced wrinkles and fine lines. I had not reaction. I use 5 days a week. My next purchase, I will buy the Crystal Retinal 8. The picture is my after my Medik8, nightly routine.
1.1k
26 Comments
LikeCommentShare
How to Use
- Cleanse. Use it in the evening only, on clean, completely dry skin.
- Apply. Smooth 1–2 pumps over your face and neck, avoiding the eye area and the corners of your nose and mouth.
- Moisturise. Let it absorb for a minute, then follow with your night moisturiser.
- Protect. Apply SPF 30 or higher every morning while using vitamin A.
Tip: Start with 2–3 nights a week for the first couple of weeks, then build up to every night as your skin gets used to it.
Available Strengths
Crystal Retinal 6 is the regular strength, made for people who already use retinol or retinal and want visible results without going straight to the strongest formula.
New to vitamin A or have sensitive skin? Start at a lower strength and move up once a tube has gone by with no irritation.
Guide to Layering
☀ Morning
- Gentle cleanser
- Vitamin C serum
- Moisturiser
- SPF 30+ (essential)
☾ Evening
- Cleanser
- Crystal Retinal 6
- Moisturiser
Pairs well with: hyaluronic acid, niacinamide, peptides and ceramides. They hydrate and soothe alongside vitamin A.
Use on different nights: exfoliating acids (AHA/BHA), benzoyl peroxide and other retinoids. Using them together can cause irritation.
Key Ingredients
Retinaldehyde (Retinal) 0.06%
A fast-acting form of vitamin A that's one step closer to retinoic acid than retinol, which is why it works up to 11x faster. It helps smooth fine lines, refine texture and even out skin tone.
Stability Technology
Retinal is naturally delicate. Crystal Retinal is formulated to keep it stable, and the airless tube protects it from light and air so it stays effective to the last drop.
Lightweight Serum Base
A light, fast-absorbing texture that sits comfortably under your moisturiser and won't feel heavy overnight.
See the packaging for the full ingredients list.
Experts Recommended
Vitamin A is one of the most researched skincare ingredients for visible signs of ageing, and dermatologists widely recommend it for fine lines, uneven texture and dullness.
Crystal Retinal has won 50+ global awards (Medik8) and gives you retinal's results in a gentle, stable night serum.
Not sure which strength is right for you? Get in touch and we'll help you build your routine.