Crystal Retinal 20
The Medik8 Crystal Retinal 20 is a treatment. Our analysis of its 39 ingredients (31 low-risk) rates it Excellent (94/100).
The Medik8 Crystal Retinal 20 is a treatment. Our analysis of its 39 ingredients (31 low-risk) rates it Excellent (94/100).
Summarised from our ingredient analysis — not brand marketing copy.
The evidence
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
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Retinal
(Skin Conditioning) |
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Hyaluronic Acid
(Skin Conditioning, Viscosity Increasing Agent, Antistatic Agent, Humectant, Moisturising) |
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Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent) |
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Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent) |
Good for Dry Skin
Fungal Acne Trigger
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Isododecane
(Fragrance, Solvent, Emollient, Perfuming) |
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Cyclodextrin
(Absorbent, Chelating Agent) |
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Cetearyl Alcohol
(Emulsion Stabilising, Opacifying, Foam Boosting, Viscosity Increasingagent Aqueous, Viscosity Increasing Agent, Emollient, Emulsifying, Viscosity Controlling) |
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Cetearyl Olivate
(Hair Conditioning) |
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Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
(Anticaking Agent, Emulsion Stabilising, Opacifying, Suspending Agent Nonsurfactant, Viscosity Increasing Agent) |
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Sorbitan Olivate
(Emulsifying, Surfactant) |
Fungal Acne Trigger
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Tocopheryl Acetate
(Antioxidant, Skin Conditioning) |
Bad for Oily Skin
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Squalane
(Emollient, Hair Conditioning, Refatting, Skin Conditioning) |
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Sodium Hyaluronate
(Skin Conditioning, Humectant) |
Good for Dry Skin
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3-O-ETHYL ASCORBIC ACID
(Skin Conditioning) |
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daucus carota sativa seed oil
(Fragrance, Skin Conditioning, Skin Conditioning Emollient) |
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Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
(Emulsion Stabilising, Viscosity Controlling) |
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Ethylhexylglycerin
(Deodorant, Skin Conditioning) |
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Pentylene Glycol
(Skin Conditioning, Solvent) |
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Vanilla Planifolia Fruit Extract
(Skin Conditioning, Skin Protecting, Smoothing) |
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Hydroxypropyl Methylcellulose
(Adhesive, Binding Agent, Emulsion Stabilising, Film Forming, Viscosity Increasing Agent, Antistatic Agent, Binding, Surfactant, Viscosity Controlling) |
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Rubus Chamaemorus Seed Oil
(Skin Conditioning) |
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Sodium Polyaspartate
(Hair Conditioning, Humectant, Skin Conditioning) |
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Tetrahexyldecyl Ascorbate
(Antioxidant, Skin Conditioning) |
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Dipteryx Odorata Bean Extract
(Masking, Perfuming) |
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BHT
(Antioxidant, Fragrance, Masking) |
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Polyhydroxystearic Acid
(Suspending Agent Nonsurfactant, Emulsifying) |
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Disodium EDTA
(Chelating Agent, Viscosity Controlling) |
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Hydroxyacetophenone
(Antioxidant) |
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Titanium Dioxide
(Cosmetic Colorant, Opacifying, Sunscreen Agent, Uv Absorber) |
Good for Sensitive Skin
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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
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Alumina
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Viscosity Controlling) |
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Lonicera Caprifolium Flower Extract
(Perfuming, Skin Conditioning) |
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Isostearic Acid
(Binding Agent, Sufactantsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Isostearic Acid., Binding, Emulsifying) |
Fungal Acne Trigger
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Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Antistatic Agent, Emollient) |
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Lonicera Japonica Flower Extract
(Skin Conditioning) |
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Polyglyceryl-3 Polyricinoleate
(Emulsifying, Surfactant, Viscosity Increasing Agent) |
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Stearic Acid
(Fragrance, Sufactant, Emulsifying, Surfactantsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Stearic Acid., Emulsion Stabilising, Masking, Refatting) |
Bad for Oily Skin
Fungal Acne Trigger
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Coumarin
(Fragrance, Masking) |
Allergens
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CI 14700
(Cosmetic Colorant) |
No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.
EWG flags hazard, not real-world risk — ratings don't account for how much of an ingredient a product contains. Treat these as things to research, not verdicts. How we score →
How to use
General guidance from this product's category and active ingredients — always follow the directions on the package.
Trust & honesty
Contains ingredients some choose to avoid or double-check while pregnant or nursing.
Topical retinoids (retinol, retinaldehyde, retinyl esters) are widely advised against in pregnancy as a precaution. The strongest evidence is for ORAL retinoids; topical absorption is low, but most clinicians err on the side of caution.
This is general information, not medical advice. Pregnancy guidance varies and depends on concentration and your individual situation — always check with your doctor, midwife or pharmacist. How we flag this.
The concentrations these actives are typically effective at in research — not a measurement of this product.
Most studied between 0.1% and 1%. Higher is not automatically better — irritation climbs with dose, so a well-formulated lower strength is often the sweet spot.
Retinal
L-ascorbic acid is usually used at 5–20% (around 10–15% is common). Above ~20% adds little and tends to irritate more; it also needs a low pH to work.
3-O-ETHYL ASCORBIC ACID, Tetrahexyldecyl Ascorbate
INCI lists don't disclose amounts, and we don't claim to know this product's levels — these are the ranges these ingredients are usually effective at, so you can tell a real formula from "fairy-dusting" a marketed active. How we estimate this.
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