Neo C25 Vitamin C Serum

Obagi

Where to buy Possibly in stock

About this product

The Obagi Neo C25 Vitamin C Serum is a emulsion. Our analysis of its 26 ingredients (14 low-risk) rates it Excellent (97/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Emulsion
Ingredients
26
Low-risk
14
Fragrance
Contains fragrance
Origin
Japan

The evidence

Quick Product Notes

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

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 5/5
Good for dry skin
Betaine Butylene Glycol Glycerin Propylene Glycol PEG-8
Caution for dry skin
Centella Asiatica Extract Glycerin Alcohol Denat. PEG/PPG-300/55 Copolymer PPG-6-Decyltetradeceth-30
Oily/Acne-Prone Skin 1/0
Good for oily/acne-prone skin
Alcohol Denat.
Sensitive Skin 2/5
Good for sensitive skin
Centella Asiatica Extract Glycerin
Caution for sensitive skin
Serine Butylene Glycol Glycerin Propylene Glycol Alcohol Denat.

Ingredients list

26 total
Lower hazard (1) Higher hazard (4)
All26 Skin Conditioning20 Solvent9 Humectant8 Fragrance7 Viscosity Controlling5 Perfuming3 Viscosity Decreasing Agent3 Hair Conditioning3
EWG CIR Ingredient Name & Cosmetic Functions Notes
ASCORBIC ACID
(Antioxidant, Buffering, Fragrance, Skin Conditioning)
1
Water
(Solvent)
1
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
3
B
Propylene Glycol
(Fragrance, Humectant, Skin Conditioningagent Miscellaneous, Solvent, Viscosity Decreasing Agent, Skin Conditioning, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
4
Alcohol Denat.
(Antifoaming Agent, Antimicrobial, Astringent, Masking, Solvent, Viscosity Controlling)
Bad for Dry Skin
Bad for Dry Skin
Bad for Sensitive Skin
Bad for Sensitive Skin
3
A
PEG-8
(Humectant, Solvent)
1
B
Betaine
(Hair Conditioning, Humectant, Antistatic Agent, Skin Conditioning, Viscosity Controlling)
1
Isopentyldiol
(Solvent)
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning)
3-O-ETHYL ASCORBIC ACID
(Skin Conditioning)
1
Harpagophytum Procumbens Root Extract
(Skin Conditioning)
Hydrolyzed Brassica Alba Seed Extract
(Skin Conditioning)
1
B
Centella Asiatica Extract
(Cleansing, Skin Conditioning, Smoothing, Soothing, Tonic)
Cynara Scolymus Leaf Extract
(Skin Conditioning)
1
Yeast Extract
(Skin Conditioning)
1
Papaver Somniferum Seed Extract
(Skin Conditioning)
1
A
Serine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking)
Citrus Grandis Fruit Extract
(Astringent, Perfuming, Skin Conditioning, Tonic)
Methylglucoside Phosphate
(Skin Conditioning)
CI 77400
(Colorant)
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
A
Pentylene Glycol
(Skin Conditioning, Solvent)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
4
PEG/PPG-300/55 Copolymer
(Surfactant)
B
PPG-6-Decyltetradeceth-30
(Emulsifying, Surfactant)
PARFUM
(Fragrance, Perfuming)

My Ingredient Notes

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Key ingredients

ASCORBIC ACID
Antioxidant, Skin Conditioning
Propylene Glycol
Humectant, Skin Conditioning
Alcohol Denat.
Astringent
PEG-8
Humectant
Betaine
Humectant, Skin Conditioning
TOCOPHEROL
Antioxidant, Skin Conditioning

Benefits

Good for oily/acne-prone skin

Concerns

Not fungal acne (malassezia) safe
May not suit sensitive skin

Ingredients explained

ASCORBIC ACID
Antioxidant, Buffering
Limited public safety data.Read moreShow less
EWG N/A AntioxidantBufferingFragranceSkin conditioning
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
PEG-8
Humectant, Solvent
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A HumectantSolvent
Betaine
Hair conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Hair conditioningHumectantAntistatic agentSkin conditioningViscosity controlling
Isopentyldiol
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
TOCOPHEROL
Antioxidant, Fragrance
Limited public safety data.Read moreShow less
EWG N/A AntioxidantFragranceSkin conditioning
3-O-ETHYL ASCORBIC ACID
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Harpagophytum Procumbens Root Extract
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Hydrolyzed Brassica Alba Seed Extract
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Centella Asiatica Extract
Cleansing, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B CleansingSkin conditioningSmoothingSoothingTonic
Cynara Scolymus Leaf Extract
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Yeast Extract
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Papaver Somniferum Seed Extract
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Serine
Fragrance, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceHair conditioningSkin conditioningAntistatic agentMasking
+ 7 more — see the full ingredients list above
Propylene Glycol
Fragrance, Humectant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B FragranceHumectantSkin-conditioningagent - miscellaneousSolventViscosity decreasing agentSkin conditioningViscosity controlling Good for Dry Skin
Alcohol Denat.
Antifoaming agent, Antimicrobial
Causes moisture evaporation - prone to dry out skinRead moreShow less
EWG 4 Antifoaming agentAntimicrobialAstringentMaskingSolventViscosity controlling Bad for Dry SkinBad for Sensitive Skin
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

How to use

How to use

  • 1 Morning works well: Antioxidants like vitamin C pair well with daytime use under sunscreen.

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

Trust & honesty

Effective levels — general guide

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

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, 3-O-ETHYL 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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