Medik8 Crystal Retinal 3
Evidence-led ingredient analysis, a transparent clean score out of 100 and cleaner, effective alternatives at three price levels.
Best for
Fine Lines & Wrinkles
Why Selenssa recommends it
Formulated with encapsulated retinaldehyde, which converts to retinoic acid up to 11 times faster than standard retinol, directly targeting collagen loss and smoothing fine lines rapidly. The soothing time-release matrix keeps the skin barrier comfortable while delivering transformative results.
Key actives
Retinaldehyde (0.03%), Hyaluronic Acid, Vitamin E
Clean highlights
Fragrance-free · Paraben-free · Vegan · Non-comedogenic
Selenssa Score 94/100 · £49.00
Want to see how this compares? See The Selenssa 3 →Medik8
Crystal Retinal 3
Serum · Budget: £49.00
4.8 (2,000 reviews)· across Medik8 UK, LookFantastic, Space NK, Cult Beauty
Ingredients: AI-inferred — not yet verified
Formulated with 0.03% encapsulated retinaldehyde, Medik8 Crystal Retinal 3 is an exceptionally well-engineered night serum. The ingredient list was inferred based on Medik8's standard published formulation. It features advanced retinal encapsulation alongside stabilizing antioxidants (Tetrahexyldecyl Ascorbate, Vitamin E) and hydrating barrier support. Caution is noted only for subtle natural aromatic extracts containing trace coumarin.
Hazard categories
Estimated score out of 100
Formulation score is fixed across Selenssa · Community effectiveness awaiting more reports
Based on publicly available ingredients, following our methodology. Not medical advice — always check the physical label, especially for allergies. How we score →
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Medik8 Crystal Retinal 3 is an outstanding, highly refined night serum that balances powerful retinoid results with hydration and lipid support. Recommended for anyone looking for a clean, effective retinaldehyde treatment.
Be cautious if
Users with known contact allergies to natural fragrance allergens (specifically Coumarin) or those with extremely compromised skin barriers.
Against your clean standard
Yes. This product easily meets elevated clean cosmetic standards as it avoids parabens, phthalates, endocrine disruptors, and harsh synthetic preservatives.
Where this score comes from
- Source
- No source record on file yet
- Source page
- —
- Retrieved
- —
- Evidence snapshot
- Not captured
Score history
No score changes have been recorded for this product yet.
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Does Medik8 Crystal Retinal 3 contain parabens, sulfates or fragrance?
A straight yes or no for the ingredient groups people most often want to avoid, checked against this product's published formulation.
Free from parabens
Preservatives; the longer-chain ones (propyl, butyl) carry the endocrine questions.
Free from sulfates (sls / sles)
Strong cleansing agents that can strip a compromised barrier.
Free from silicones
Slip and occlusion; cyclic silicones (D4/D5/D6) are the environmentally restricted ones.
Free from fragrance / parfum
Undisclosed fragrance blends are the most common trigger for sensitised skin.
Free from essential oils
Naturally derived, but among the most frequently reported contact allergens.
Free from drying alcohol
Fine in small amounts for texture; high up the list it can dehydrate.
Free from formaldehyde releasers
Preservatives that slowly release formaldehyde.
Free from chemical uv filters of concern
Restricted or debated filters with endocrine or reef-persistence questions.
Is Medik8 Crystal Retinal 3 non-comedogenic?
No ingredients in this formulation appear on Selenssa's common pore-clogger list, so it is unlikely to be the cause of congestion for most people. Comedogenicity is still individual — texture, occlusion and how much you use all play a part.
Is Medik8 Crystal Retinal 3 safe for sensitive skin?
Generally a reasonable choice for sensitive skin.
- No fragrance or parfum in the list
Ingredients worth knowing about: Coumarin.
Can you use Medik8 Crystal Retinal 3 while pregnant?
This product contains retinal (retinaldehyde), which is usually on the list of ingredients people are advised to pause during pregnancy or breastfeeding. Selenssa is not medical advice — check with your midwife, GP or dermatologist before using it.
Medik8 Crystal Retinal 3 full ingredients list
11 ingredients analysed, in the order Selenssa assessed them. Concentration generally falls as you move down the list.
Aqua (Water), Caprylic/Capric Triglyceride, Glycerin, Isododecane, Cetearyl Olivate, Retinal (Retinaldehyde), Tetrahexyldecyl Ascorbate, Sodium Hyaluronate, Tocopheryl Acetate, Coumarin, PPG-12/SMDI Copolymer.
The actives doing the work: Retinal (Encapsulated) (Potent vitamin A derivative that converts directly to retinoic acid, boosting collagen and cellular turnover.); Tetrahexyldecyl Ascorbate (Lipid-soluble Vitamin C that penetrates deeply to provide antioxidant defense and promote luminosity.); Sodium Hyaluronate (Deeply hydrates and helps cushion the skin barrier against potential retinoid dryness.); Rubus Chamaemorus (Cloudberry) Seed Oil (Rich in essential fatty acids and antioxidants to support moisture barrier resilience.).
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