Petra Vitamin-C Serum

Pixi Beauty

Where to buy Possibly in stock

About this product

The Pixi Beauty Petra Vitamin-C Serum is a serums, essence, ampoule. Our analysis of its 43 ingredients (26 low-risk) rates it Excellent (97/100). 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
26
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 6/6
Good for dry skin
Citrus Glauca Fruit Extract Ethoxydiglycol Caprylic/Capric Triglyceride Sodium Hyaluronate Glycerin Lecithin
Caution for dry skin
Punica Granatum Extract Xanthan Gum Glycerin Sodium Hydroxide Polysorbate 20 Lecithin
Oily/Acne-Prone Skin 2/0
Good for oily/acne-prone skin
Punica Granatum Extract Retinol
Sensitive Skin 3/11
Good for sensitive skin
Glycerin Ferulic Acid Aloe Barbadensis Leaf Juice
Caution for sensitive skin
Punica Granatum Extract Ethoxydiglycol Caffeine Caprylic/Capric Triglyceride Glycerin Hydroxypropyl Cyclodextrin Citric Acid Sodium Benzoate Potassium Sorbate Phenoxyethanol Retinol

Ingredients list

43 total
Lower hazard (1) Higher hazard (9)
All43 Skin Conditioning31 Fragrance11 Masking6 Perfuming6 Preservative5 Humectant5 Solvent5 Viscosity Controlling4
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
ASCORBIC ACID
(Antioxidant, Buffering, Fragrance, Skin Conditioning)
1
A
Ethoxydiglycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Humectant, Perfuming)
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
Citrus Grandis
(Not Reported)
3
B
Sodium Hydroxide
(Denaturant, Ph Adjuster, Buffering Agent)
B
Aloe Barbadensis Leaf Juice
(Skin Conditioning)
Good for Sensitive Skin
Good for Sensitive Skin
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
citrus limon peel extract
(Skin Conditioning, Skin Conditioning Emollient, Skin Protecting, Tonic)
Citrus Nobilis
(Not Reported)
Citrus Aurantium Dulcis Fruit Extract
(Fragrance, Skin Conditioning)
2
Ferulic Acid
(Antioxidant, Preservative, Uv Absorber, Antimicrobial)
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning)
1
Caffeine
(Fragrance, Skin Conditioning, Masking)
Microcitrus Australis Fruit Extract
(Skin Conditioning)
Microcitrus Australasica Fruit Extract
(Skin Conditioning)
2
Beta-Carotene
(Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
2
3
Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Antistatic Agent, Emollient)
1
B
Citrus Glauca Fruit Extract
(Antistatic Agent, Hair Conditioning, Humectant, Skin Conditioning)
1
A
Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
daucus carota sativa root extract
(Skin Conditioning)
Citrus Aurantium Dulcis Peel Extract
(Binding, Emulsion Stabilising, Perfuming, Skin Conditioning, Viscosity Controlling)
Citrus Grandis Fruit Extract
(Astringent, Perfuming, Skin Conditioning, Tonic)
1
B
Citrus Junos Peel Extract
(Skin Conditioning)
Mentha Piperita Extract
(Cleansing, Deodorant, Fragrance, Refreshing, Tonic)
Melaleuca Alternifolia Flower/Leaf/Stem Extract
(Skin Conditioning)
9
A
Retinol
(Skin Conditioning)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
1
Leuconostoc/Radish Root Ferment Filtrate
(Antidandruff Agent, Antimicrobial)
1
Punica Granatum Extract
(Astringent, Masking, Tonic)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
1
A
Hydroxypropyl Cyclodextrin
(Chelating Agent, Emulsion Stabilising, Masking, Skin Conditioning)
3
B
Polysorbate 20
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
1
A
Phospholipids
(Skin Conditioning)
Glycine Soja Oil
(Perfuming, Skin Conditioning, Skin Conditioning Emollient)
1
A
Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent)
3
B
Sodium Acrylates Copolymer
(Binding Agent, Film Forming, Viscosity Increasing Agent, Binding, Opacifying, Viscosity Controlling)
3
A
Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking)
3
A
Potassium Sorbate
(Fragrance, Preservative)
1
Sodium Sorbate
(Preservative)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)

My Ingredient Notes

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

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Key ingredients

ASCORBIC ACID
Antioxidant, Skin Conditioning
Ethoxydiglycol
Humectant
Glycerin
Humectant, Skin Protecting
Aloe Barbadensis Leaf Juice
Skin Conditioning
Sodium Hyaluronate
Skin Conditioning, Humectant
citrus limon peel extract
Skin Conditioning, Skin Protecting

Benefits

Good for oily/acne-prone skin

Concerns

Contains paraben
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

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
ASCORBIC ACID
Antioxidant, Buffering
Limited public safety data.Read moreShow less
EWG N/A AntioxidantBufferingFragranceSkin conditioning
Ethoxydiglycol
Fragrance, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSolventViscosity decreasing agentHumectantPerfuming
Propanediol
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Citrus Grandis
Not reported
Limited public safety data.Read moreShow less
EWG N/A Not reported
Sodium Hydroxide
Denaturant, Ph adjuster
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B DenaturantPh adjusterBuffering agent
citrus limon peel extract
Skin conditioning, Skin conditioning emollient
Limited public safety data.Read moreShow less
EWG N/A Skin conditioningSkin conditioning emollientSkin protectingTonic
Citrus Nobilis
Not reported
Limited public safety data.Read moreShow less
EWG N/A Not reported
Citrus Aurantium Dulcis Fruit Extract
Fragrance, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A FragranceSkin conditioning
Ferulic Acid
Antioxidant, Preservative
Low-hazard ingredient.Read moreShow less
EWG 2 AntioxidantPreservativeUv absorberAntimicrobial
TOCOPHEROL
Antioxidant, Fragrance
Limited public safety data.Read moreShow less
EWG N/A AntioxidantFragranceSkin conditioning
Caffeine
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 FragranceSkin conditioningMasking
Microcitrus Australis Fruit Extract
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Microcitrus Australasica Fruit Extract
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Lecithin
Skin conditioning, Emulsifying
Low-to-moderate hazard.Read moreShow less
EWG 2–3 Skin conditioningEmulsifyingSurfactantAntistatic agentEmollient
+ 19 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
Aloe Barbadensis Leaf Juice
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A CIR B Skin conditioning Good for Sensitive Skin
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant Good for Dry Skin
Beta-Carotene
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 2 Skin conditioning Good for Dry Skin
Panthenol
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antistatic agentHair conditioningSkin conditioning Good for Dry Skin
Retinol
Skin conditioning
Potentially a skin irritantRead moreShow less
EWG 9 CIR A Skin conditioning Bad for Sensitive Skin
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
Polysorbate 20
Emulsifying, Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B EmulsifyingSurfactant Fungal-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

How to use

How to use

  • 1 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 Morning only: Apply as the last step of your AM routine, after moisturiser, and reapply every ~2 hours of sun exposure.
  • 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

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.

ASCORBIC 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.

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