PR Cosmetics Ceretin Serum

PR Cosmetics

Where to buy Possibly in stock

About this product

The PR Cosmetics Ceretin Serum is a serums, essence, ampoule. Our analysis of its 43 ingredients (33 low-risk) rates it Excellent (95/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Serums, Essence, Ampoules
Ingredients
43
Low-risk
33
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 12/10
Good for dry skin
Cetearyl Isononanoate Cetyl Alcohol Ethylhexyl Stearate Butylene Glycol Sodium PCA Glycerin Cholesterol Dimethicone Sodium Lactate Sodium Polyacrylate Lactic Acid Bis-PEG-4 Dimethicone
Caution for dry skin
Decyl Glucoside Behenic Acid Cetyl Alcohol Sodium Starch Octenylsuccinate Lycium Barbarum Fruit Extract Glycerin Trideceth-6 Ceteareth-25 Sodium Polyacrylate Sodium Hydroxide
Oily/Acne-Prone Skin 2/0
Good for oily/acne-prone skin
Lycium Barbarum Fruit Extract Retinol
Sensitive Skin 2/7
Good for sensitive skin
Glycerin Dimethicone
Caution for sensitive skin
Cetyl Alcohol Butylene Glycol Glycerin Citric Acid Lactic Acid Phenoxyethanol Retinol

Ingredients list

43 total
Lower hazard (1) Higher hazard (9)
All43 Skin Conditioning31 Hair Conditioning11 Emulsion Stabilising10 Viscosity Controlling8 Humectant7 Film Forming7 Emollient6 Viscosity Increasing Agent6
EWG CIR Ingredient Name & Cosmetic Functions Notes
3
A
Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning)
Silicone
Silicone
1
B
Cetearyl Isononanoate
(Hair Conditioning, Skin Conditioning, Emollient)
1
A
Pentylene Glycol
(Skin Conditioning, Solvent)
4
6
A
Bis-PEG-4 Dimethicone
(Hair Conditioning, Skin Conditioning, Emollient)
1
Polymethylsilsesquioxane
(Opacifying)
1
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
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
Polysilicone-11
(Film Forming)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
A
Hydroxyethylcellulose
(Binding Agent, Emulsion Stabilising, Film Forming, Viscosity Increasing Agent, Binding, Stabilising, Viscosity Controlling)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
1
A
Decylene Glycol
(Skin Conditioning)
1
A
1,2-Hexanediol
(Solvent)
1
B
Decyl Glucoside
(Cleansing, Emulsion Stabilising, Surfactant)
3
B
Sodium Hydroxide
(Denaturant, Ph Adjuster, Buffering Agent)
Dimethylacrylamide/Acrylic Acid/Polystyrene Ethyl Methacrylate Copolymer
(Film Forming, Skin Conditioning, Viscosity Controlling)
1
Lycium Barbarum Fruit Extract
(Astringent, Hair Conditioning, Skin Conditioning)
1
Palmitoyl Hexapeptide-14
(Skin Conditioning)
1
Citrullus Lanatus (Watermelon) Fruit Extract
1
Pyrus Malus (Apple) Fruit Extract
(Proprietary, Skin Conditioning)
1
Lens Esculenta (Lentil) Fruit Extract
(Skin Conditioning)
3
B
Sodium Lactate
(Buffering Agent, Exfoliant, Humectant, Keratolytic)
1
B
Sodium PCA
(Hair Conditioning, Humectant, Antistatic Agent, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
3
B
Ceteareth-25
(Cleansing, Emulsifying, Surfactant)
1
A
Cetyl Alcohol
(Emulsion Stabilising, Fragrance, Opacifying, Emulsifying, Surfactant, Foam Boosting, Viscosity Increasing Agent, Emollient, Masking, Viscosity Controlling)
1
Behenic Acid
(Opacifying, Sufactantsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Behenic Acid., Emulsifying)
Fungal Acne
Fungal Acne Trigger
1
A
Cholesterol
(Emulsion Stabilising, Skin Conditioning, Viscosity Increasing Agent, Emollient, Emulsifying, Stabilising, Viscosity Controlling)
Ceramide EOP
(Hair Conditioning, Skin Conditioning)
Ceramide EOS
(Hair Conditioning, Skin Conditioning)
1
Ceramide NP
(Hair Conditioning, Skin Conditioning)
Ceramide NS
(Hair Conditioning, Skin Conditioning)
1
Ceramide
A
Caprooyl Phytosphingosine
(Hair Conditioning, Skin Conditioning)
A
Caprooyl Sphingosine
(Hair Conditioning, Skin Conditioning)
1
A
Sodium Starch Octenylsuccinate
(Absorbent, Emulsion Stabilising, Viscosity Increasing Agent, Viscosity Controlling)
4
B
Lactic Acid
(Exfoliant, Fragrance, Humectant, Ph Adjuster, Skin Conditioning Agent Humectant, Skin Conditioning, Buffering Agent)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
Butyrospermum Parkii (Shea) Butter Extract
9
A
Retinol
(Skin Conditioning)
Bad for Sensitive Skin
Bad for Sensitive Skin
3
B
Sodium Polyacrylate
(Absorbent, Emulsion Stabilising, Film Forming, Hair Fixing, Skin Conditioning Agent Emollient, Viscosity Controlling Agent, Viscosity Increasing Agent, Binding, Skin Conditioning)
1
B
Ethylhexyl Stearate
(Skin Conditioning, Emollient)
1
B
Trideceth-6
(Emulsifying, Surfactant)
1
Ammonium Acryloyldimethyltaurate/VP Copolymer
(Viscosity Controlling)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin

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

Dimethicone
Skin Protecting, Emollient
Cetearyl Isononanoate
Skin Conditioning, Emollient
Pentylene Glycol
Skin Conditioning
Bis-PEG-4 Dimethicone
Skin Conditioning, Emollient
Glycerin
Humectant, Skin Protecting
Butylene Glycol
Skin Conditioning, Humectant

Benefits

Good for dry skin
Good for oily/acne-prone skin

Concerns

Contains paraben
Contains silicone
Not fungal acne (malassezia) safe
Retinol — higher EWG
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

Cetearyl Isononanoate
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Hair conditioningSkin conditioningEmollient
Pentylene Glycol
Skin conditioning, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningSolvent
Polymethylsilsesquioxane
Opacifying
Low-hazard ingredient.Read moreShow less
EWG 1 Opacifying
Propanediol
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Polysilicone-11
Film forming
Low-hazard ingredient.Read moreShow less
EWG 1 Film forming
Hydroxyethylcellulose
Binding agent, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentEmulsion stabilisingFilm formingViscosity increasing agentBindingStabilisingViscosity controlling
Decylene Glycol
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioning
1,2-Hexanediol
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Solvent
Decyl Glucoside
Cleansing, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B CleansingEmulsion stabilisingSurfactant
Sodium Hydroxide
Denaturant, Ph adjuster
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B DenaturantPh adjusterBuffering agent
Dimethylacrylamide/Acrylic Acid/Polystyrene Ethyl Methacrylate Copolymer
Film forming, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Film formingSkin conditioningViscosity controlling
Lycium Barbarum Fruit Extract
Astringent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 AstringentHair conditioningSkin conditioning
Palmitoyl Hexapeptide-14
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Citrullus Lanatus (Watermelon) Fruit Extract
Other
Low-hazard ingredient.Read moreShow less
EWG 1
Pyrus Malus (Apple) Fruit Extract
Proprietary, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 ProprietarySkin conditioning
+ 18 more — see the full ingredients list above
Dimethicone
Antifoaming agent, Skin protecting
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Antifoaming agentSkin protectingEmollientSkin conditioning Silicone
Bis-PEG-4 Dimethicone
Hair conditioning, Skin conditioning
Moderate-hazard ingredient.Read moreShow less
EWG 4–6 CIR A Hair conditioningSkin conditioningEmollient
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
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
Sodium PCA
Hair conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Hair conditioningHumectantAntistatic agentSkin conditioning Good for Dry Skin
Behenic Acid
Opacifying, Sufactantsurfactant-cleansing agent is included as a function for the soap form of behenic acid.
Low-hazard ingredient.Read moreShow less
EWG 1 OpacifyingSufactantsurfactant-cleansing agent is included as a function for the soap form of behenic acid.Emulsifying Fungal-acne trigger
Lactic Acid
Exfoliant, Fragrance
Skin irritation can occur at high concentrationRead moreShow less
EWG 4 CIR B ExfoliantFragranceHumectantPh adjusterSkin-conditioning agent -humectantSkin conditioningBuffering agent Bad for Sensitive Skin
Retinol
Skin conditioning
Potentially a skin irritantRead moreShow less
EWG 9 CIR A Skin conditioning Bad for Sensitive Skin
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

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) (Retinol)

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.

Retinol

AHA (acid exfoliant) 5–10% (OTC)

OTC leave-on AHAs are usually 5–10%. The effect also depends on pH and free-acid value, not the percentage alone.

Lactic Acid

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