Exo C-Serum Vitamin C Treatment

Exoceuticals

Where to buy Possibly in stock

About this product

The Exoceuticals Exo C-Serum Vitamin C Treatment is a serums, essence, ampoule. Our analysis of its 26 ingredients (18 low-risk) rates it Excellent (97/100). Based on its ingredients, it looks well-suited to oily / acne-prone, dry, and sensitive skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Serums, Essence, Ampoules
Ingredients
26
Low-risk
18
Fragrance
Fragrance-free
Origin
United States

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 4/2
Good for dry skin
Algae Extract Sodium Hyaluronate Glycerin Bis-PEG-18 Methyl Ether Dimethyl Silane
Caution for dry skin
Xanthan Gum Glycerin
Oily/Acne-Prone Skin 1/0
Good for oily/acne-prone skin
Sodium Ascorbyl Phosphate
Sensitive Skin 6/6
Good for sensitive skin
Ulva Lactuca Extract Sodium Ascorbyl Phosphate Undaria Pinnatifida Extract Glycerin Laminaria Digitata Extract Allantoin
Caution for sensitive skin
Algae Extract Sodium Citrate Glycerin Citric Acid Acacia Senegal Gum Phenoxyethanol

Ingredients list

26 total
Lower hazard (1) Higher hazard (5)
All26 Skin Conditioning24 Skin Protecting7 Fragrance6 Humectant5 Solvent3 Hair Conditioning3 Masking3 Viscosity Controlling3
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(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
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
3-O-ETHYL ASCORBIC ACID
(Skin Conditioning)
1
A
Sodium Ascorbyl Phosphate
(Antioxidant)
ASCORBIC ACID
(Antioxidant, Buffering, Fragrance, Skin Conditioning)
Human Adipose Stromal Cell Exosomes
(Skin Conditioning)
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
5
Cholecalciferol
(Skin Conditioning)
Retinyl Palmitate
(Skin Conditioning, Skin Conditioning Miscellaneous)
1
A
Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing)
3
Bis-PEG-18 Methyl Ether Dimethyl Silane
(Humectant, Foam Boosting, Hydrotrope, Emollient, Hair Conditioning, Skin Conditioning)
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
A
Sodium Citrate
(Ph Adjuster, Buffering Agent, Chelating, Masking)
1
A
Allantoin
(Skin Conditioning, Skin Protecting, Soothing)
Good for Oily Skin
Good for Oily Skin
Good for Sensitive Skin
Good for Sensitive Skin
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)
3
A
Acacia Senegal Gum
(Adhesive, Fragrance, Film Forming, Masking)
1
Algae Extract
(Fragrance, Humectant, Oral Care Agent, Skin Conditioning, Emollient)
Chondrus Crispus Extract
(Skin Conditioning, Viscosity Controlling)
1
Ulva Lactuca Extract
(Skin Conditioning, Skin Protecting)
1
Undaria Pinnatifida Extract
(Skin Conditioning, Skin Protecting)
1
Laminaria Digitata Extract
(Skin Protecting)
1
Morinda Citrifolia Fruit Juice
(Skin Conditioning)
Agastache Mexicana Flower/Leaf/Stem Extract
(Skin Conditioning, Skin Protecting)

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

Vitamin C
Brightens, evens tone, and supports collagen.
Antioxidants
Shields skin from free radical damage.
Retinoid
Visibly reduces the signs of aging.
Niacinamide
Strengthens, smooths, and brightens skin.
Hyaluronic Acid
Hydrates by attracting and holding water.

Benefits

Scar HealingImproves the look of marks and scars.
HydratingBoosts hydration and relieves dry, tight skin.
Redness ReducingSoothes visible redness and calms irritation.
Barrier RepairStrengthen and restore your skin's natural barrier.
BrighteningRestores radiance to dull, tired skin.
Skin TextureSmooths rough patches and refines texture.
Anti-AgingSoftens lines and helps skin look youthful.
Reduces IrritationEases discomfort and supports skin resilience.

Concerns

Contains paraben
Not fungal acne (malassezia) safe

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Propanediol
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
3-O-ETHYL ASCORBIC ACID
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Sodium Ascorbyl Phosphate
Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antioxidant
ASCORBIC ACID
Antioxidant, Buffering
Limited public safety data.Read moreShow less
EWG N/A AntioxidantBufferingFragranceSkin conditioning
Human Adipose Stromal Cell Exosomes
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Retinyl Palmitate
Skin conditioning, Skin conditioning miscellaneous
Limited public safety data.Read moreShow less
EWG N/A Skin conditioningSkin conditioning miscellaneous
Niacinamide
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningSmoothing
Bis-PEG-18 Methyl Ether Dimethyl Silane
Humectant, Foam boosting
Low-to-moderate hazard.Read moreShow less
EWG 3 HumectantFoam boostingHydrotropeEmollientHair conditioningSkin conditioning
Xanthan Gum
Binding agent, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentEmulsion stabilisingSkin conditioningSurfactant -emulsifying agentViscosity increasing agentBindingGel formingViscosity controlling
Sodium Citrate
Ph adjuster, Buffering agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Ph adjusterBuffering agentChelatingMasking
Ethylhexylglycerin
Deodorant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A DeodorantSkin conditioning
Acacia Senegal Gum
Adhesive, Fragrance
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A AdhesiveFragranceFilm formingMasking
Algae Extract
Fragrance, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 FragranceHumectantOral care agentSkin conditioningEmollient
Chondrus Crispus Extract
Skin conditioning, Viscosity controlling
Limited public safety data.Read moreShow less
EWG N/A Skin conditioningViscosity controlling
+ 5 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
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant Good for Dry Skin
Cholecalciferol
Skin conditioning
Moderate-hazard ingredient.Read moreShow less
EWG 5 Skin conditioning
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
Allantoin
Skin conditioning, Skin protecting
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningSkin protectingSoothing Good for Oily SkinGood for Sensitive Skin
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben

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) (Retinyl Palmitate)

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.

Retinyl Palmitate

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, Sodium Ascorbyl Phosphate, ASCORBIC ACID

Niacinamide 2–5% (up to 10%)

Most research uses 2–5%; some formulas go to 10%. Very high levels can cause flushing in sensitive skin.

Niacinamide

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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