Medik8 C-Tetra Lipid Vitamin C Radiance Serum
Evidence-led ingredient analysis, a transparent clean score out of 100 and cleaner, effective alternatives at three price levels.
Best for
Brightening
Why Selenssa recommends it
Formulated with ultra-stable, lipid-soluble vitamin C, this lightweight serum penetrates deeply to effectively target dullness and uneven tone while nurturing the skin barrier. It delivers noticeable glow with minimal sensitivity.
Key actives
Tetrahexyldecyl Ascorbate (7%), Vitamin E
Clean highlights
Fragrance-free · Paraben-free · Artificial dye-free · Vegan
Selenssa Score 88/100 · £39.00
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Medik8
C-Tetra Lipid Vitamin C Radiance Serum
Facial Serum · Budget: £39.00
4.7 (4,200 reviews)· across Medik8, LookFantastic, Space NK, Cult Beauty, Boots
Ingredients: AI-inferred — not yet verified
Inferred formulation analysis shows a highly stable, nourishing lipid Vitamin C serum with minor essential oil allergen cautions.
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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A well-formulated lipid Vitamin C serum suitable for most skin types, provided you tolerate mild citrus essential oils.
Be cautious if
Users with diagnosed citrus essential oil allergies or contact dermatitis.
Against your clean standard
Meets most clean standards, though essential oils and cyclic silicones prevent a perfect score.
Where this score comes from
- Source
- No source record on file yet
- Source page
- —
- Retrieved
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- Evidence snapshot
- Not captured
Score history
No score changes have been recorded for this product yet.
Think something here is wrong? Report a correction · How we score
Does Medik8 C-Tetra Lipid Vitamin C Radiance Serum 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.
Contains silicones
Found: cyclohexasiloxane. 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.
Contains essential oils
Found: citrus grandis (grapefruit) peel oil, limonene, linalool, citral. 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 C-Tetra Lipid Vitamin C Radiance Serum 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 C-Tetra Lipid Vitamin C Radiance Serum safe for sensitive skin?
Usually tolerated, but patch test if your skin reacts easily.
- No fragrance or parfum in the list
- Contains essential oils or common fragrance allergens
Ingredients worth knowing about: Citrus Grandis (Grapefruit) Peel Oil, Limonene, Linalool, Citral.
Medik8 C-Tetra Lipid Vitamin C Radiance Serum full ingredients list
9 ingredients analysed, in the order Selenssa assessed them. Concentration generally falls as you move down the list.
Simmondsia Chinensis (Jojoba) Seed Oil, Squalane, Cyclohexasiloxane, Tetrahexyldecyl Ascorbate, Tocopheryl Acetate, Citrus Grandis (Grapefruit) Peel Oil, Limonene, Linalool, Citral.
The actives doing the work: Tetrahexyldecyl Ascorbate (Delivers stable Vitamin C deep into lipids without acidity-induced irritation.); Squalane (Restores barrier integrity and prevents trans-epidermal water loss.).
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