Crystal Retinal

Medik8

Where to buy Possibly in stock

About this product

The Medik8 Crystal Retinal is a serums, essence, ampoule. Our analysis of its 43 ingredients (34 low-risk) rates it Excellent (95/100).

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Serums, Essence, Ampoules
Ingredients
43
Low-risk
34
Fragrance
Fragrance-free
Origin
United Kingdom

The evidence

Quick Product Notes

Paraben-Free Sulfate-Free Alcohol-Free Silicone-Free EU Allergen-Free Fungal Acne (Malassezia) Safe

Notable Effects & Ingredients

No Notable Effects & Ingredients

Ingredients Related to Skin Types

Good   Bad — tap a skin type to see which ingredients · estimated from ingredient functions
Dry Skin 9/13
Good for dry skin
Cetearyl Alcohol Sodium Polyaspartate Squalane Isododecane Caprylic/Capric Triglyceride Sodium Hyaluronate Glycerin PPG-12/SMDI Copolymer Lecithin
Caution for dry skin
Cyclodextrin Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Sorbitan Olivate Sorbitan Isostearate Stearic Acid Isostearic Acid Glycerin Polyglyceryl-3 Polyricinoleate Polyhydroxystearic Acid Hydroxypropyl Methylcellulose Alumina Polysorbate 60 Lecithin
Oily/Acne-Prone Skin No data
Sensitive Skin 6/9
Good for sensitive skin
Vanilla Planifolia Fruit Extract Glycerin Tetrahexyldecyl Ascorbate Hydroxyacetophenone Tocopheryl Acetate BHT
Caution for sensitive skin
Stearic Acid Isododecane Caprylic/Capric Triglyceride Glycerin Dipteryx Odorata Bean Extract Citric Acid Phenoxyethanol BHT Coumarin

Ingredients list

43 total
Lower hazard (1) Higher hazard (7)
All43 Skin Conditioning24 Emulsifying9 Fragrance8 Emulsion Stabilising7 Emollient6 Masking6 Surfactant6 Viscosity Controlling5
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
A
Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent)
2
A
Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent)
Good for Dry Skin
Good for Dry Skin
Fungal Acne
Fungal Acne Trigger
1
B
Isododecane
(Fragrance, Solvent, Emollient, Perfuming)
1
B
Cetearyl Olivate
(Hair Conditioning)
1
Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
(Anticaking Agent, Emulsion Stabilising, Opacifying, Suspending Agent Nonsurfactant, Viscosity Increasing Agent)
1
A
Cetearyl Alcohol
(Emulsion Stabilising, Opacifying, Foam Boosting, Viscosity Increasingagent Aqueous, Viscosity Increasing Agent, Emollient, Emulsifying, Viscosity Controlling)
1
PPG-12/SMDI Copolymer
(Emollient, Film Forming, Hair Fixing, Skin Conditioning)
1
A
Sorbitan Olivate
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
3
Tocopheryl Acetate
(Antioxidant, Skin Conditioning)
Bad for Oily Skin
Bad for Oily Skin
1
A
Squalane
(Emollient, Hair Conditioning, Refatting, Skin Conditioning)
1
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
(Emulsion Stabilising, Viscosity Controlling)
1
Hydroxyacetophenone
(Antioxidant)
1
A
Cyclodextrin
(Absorbent, Chelating Agent)
3-O-ETHYL ASCORBIC ACID
(Skin Conditioning)
1
Sodium Polyaspartate
(Hair Conditioning, Humectant, Skin Conditioning)
1
A
Hydroxypropyl Methylcellulose
(Adhesive, Binding Agent, Emulsion Stabilising, Film Forming, Viscosity Increasing Agent, Antistatic Agent, Binding, Surfactant, Viscosity Controlling)
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
1
Tetrahexyldecyl Ascorbate
(Antioxidant, Skin Conditioning)
daucus carota sativa seed oil
(Fragrance, Skin Conditioning, Skin Conditioning Emollient)
5
6
Retinal
(Skin Conditioning)
2
A
Alumina
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Viscosity Controlling)
1
A
Isostearic Acid
(Binding Agent, Sufactantsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Isostearic Acid., Binding, Emulsifying)
Fungal Acne
Fungal Acne Trigger
2
3
Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Antistatic Agent, Emollient)
1
Polyglyceryl-3 Polyricinoleate
(Emulsifying, Surfactant, Viscosity Increasing Agent)
1
Polyhydroxystearic Acid
(Suspending Agent Nonsurfactant, Emulsifying)
Lonicera Japonica Flower Extract
(Skin Conditioning)
Lonicera Caprifolium Flower Extract
(Perfuming, Skin Conditioning)
1
A
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
Bad for Oily Skin
Fungal Acne
Fungal Acne Trigger
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
6
A
BHT
(Antioxidant, Fragrance, Masking)
1
A
Rubus Chamaemorus Seed Oil
(Skin Conditioning)
3
B
Polysorbate 60
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
1
A
Disodium EDTA
(Chelating Agent, Viscosity Controlling)
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)
1
A
Sorbitan Isostearate
(Emulsifying, Surfactant)
1
A
Pentylene Glycol
(Skin Conditioning, Solvent)
1
Vanilla Planifolia Fruit Extract
(Skin Conditioning, Skin Protecting, Smoothing)
1
Dipteryx Odorata Bean Extract
(Masking, Perfuming)
7
Coumarin
(Fragrance, Masking)
Allergens
Allergens
3
CI 14700
(Cosmetic Colorant)
CI 77891
(Colorant)

My Ingredient Notes

No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.

Browse similar serums, essence, ampoule
No close formula match yet — browse other products like this

Key ingredients

Caprylic/Capric Triglyceride
Emollient, Skin Conditioning
Glycerin
Humectant, Skin Protecting
Isododecane
Emollient
Cetearyl Alcohol
Emollient
PPG-12/SMDI Copolymer
Emollient, Skin Conditioning
Tocopheryl Acetate
Antioxidant, Skin Conditioning

Benefits

No standout benefits flagged for this product.

Concerns

Contains paraben
Contains eu allergen
Not fungal acne (malassezia) safe
Coumarin — higher EWG
May not suit dry skin
May not suit sensitive skin

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 →

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Caprylic/Capric Triglyceride
Emollient, Masking
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientMaskingPerfumingSkin conditioningSolvent
Isododecane
Fragrance, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B FragranceSolventEmollientPerfuming
Cetearyl Olivate
Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Hair conditioning
Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Anticaking agent, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 Anticaking agentEmulsion stabilisingOpacifyingSuspending agent - nonsurfactantViscosity increasing agent
Cetearyl Alcohol
Emulsion stabilising, Opacifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingOpacifyingFoam boostingViscosity increasingagent - aqueousViscosity increasing agentEmollientEmulsifyingViscosity controlling
PPG-12/SMDI Copolymer
Emollient, Film forming
Low-hazard ingredient.Read moreShow less
EWG 1 EmollientFilm formingHair fixingSkin conditioning
Squalane
Emollient, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientHair conditioningRefattingSkin conditioning
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion stabilising, Viscosity controlling
Low-hazard ingredient.Read moreShow less
EWG 1 Emulsion stabilisingViscosity controlling
Hydroxyacetophenone
Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 Antioxidant
Cyclodextrin
Absorbent, Chelating agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A AbsorbentChelating agent
3-O-ETHYL ASCORBIC ACID
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Sodium Polyaspartate
Hair conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 Hair conditioningHumectantSkin conditioning
Hydroxypropyl Methylcellulose
Adhesive, Binding agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A AdhesiveBinding agentEmulsion stabilisingFilm formingViscosity increasing agentAntistatic agentBindingSurfactantViscosity controlling
Tetrahexyldecyl Ascorbate
Antioxidant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 AntioxidantSkin conditioning
+ 16 more — see the full ingredients list above
Glycerin
Denaturant, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A DenaturantFragranceHair conditioningHumectantOral care agentOral health care drugSkin protectingViscosity decreasing agentPerfumingSolvent Good for Dry SkinFungal-acne trigger
Sorbitan Olivate
Emulsifying, Surfactant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmulsifyingSurfactant Fungal-acne trigger
Tocopheryl Acetate
Antioxidant, Skin conditioning
Potentially comedogenic - can block poresRead moreShow less
EWG 3 AntioxidantSkin conditioning Bad for Oily Skin
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant Good for Dry Skin
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
Retinal
Skin conditioning
Moderate-hazard ingredient.Read moreShow less
EWG 5–6 Skin conditioning
Isostearic Acid
Binding agent, Sufactantsurfactant-cleansing agent is included as a function for the soap form of isostearic acid.
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentSufactantsurfactant-cleansing agent is included as a function for the soap form of isostearic acid.BindingEmulsifying Fungal-acne trigger
Stearic Acid
Fragrance, Sufactant
Potentially comedogenic - can block poresRead moreShow less
EWG 1 CIR A FragranceSufactantEmulsifyingSurfactantsurfactant-cleansing agent is included as a function for the soap form of stearic acid.Emulsion stabilisingMaskingRefatting Bad for Oily SkinFungal-acne trigger
Citric Acid
Chelating agent, Fragrance
Skin irritation can occur at high concentrationRead moreShow less
EWG 2 CIR A Chelating agentFragrancePh adjusterBuffering agentMasking Bad for Sensitive Skin
BHT
Antioxidant, Fragrance
Moderate-hazard ingredient.Read moreShow less
EWG 6 CIR A AntioxidantFragranceMasking
Polysorbate 60
Emulsifying, Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B EmulsifyingSurfactant Fungal-acne trigger
Coumarin
Fragrance, Masking
Higher-hazard ingredient.Read moreShow less
EWG 7 FragranceMasking Allergens

How to use

How to use

  • 1 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 Evening: Use at night — start 2–3× a week and build up as your skin tolerates it.
  • 3 Wear SPF the next day: Acids and retinoids increase sun sensitivity — daily sunscreen is a must while using this.

General guidance from this product's category and active ingredients — always follow the directions on the package.

Trust & honesty

Pregnancy & breastfeeding

Contains ingredients some choose to avoid or double-check while pregnant or nursing.

Often avoided
Retinoids (Vitamin A) (Retinal)

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.

Effective levels — general guide

The concentrations these actives are typically effective at in research — not a measurement of this product.

Retinoids (Vitamin A) 0.01–1%

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

Vitamin C (ascorbic) 5–20%

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.

From the community

0
Reviews
0
Saved by users
0
In collections

Ratings & reviews

Write a Review
0.0
from 0 ratings

Used this product? Rate it in 10 seconds

Alternatives