Obagi Professional-C Serum 15%

Obagi

Where to buy Possibly in stock

About this product

The Obagi Professional-C Serum 15% is a serums, essence, ampoule. Our analysis of its 6 ingredients (5 low-risk) rates it Excellent (83/100). 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
Serums, Essence, Ampoules
Ingredients
6
Low-risk
5
Fragrance
Contains fragrance
Origin
United States

The evidence

Quick Product Notes

Paraben-Free Sulfate-Free Alcohol-Free Silicone-Free EU Allergen-Free Fungal Acne (Malassezia) Safe Minimal Ingredients 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 1/1
Good for dry skin
Propylene Glycol
Caution for dry skin
Alcohol
Oily/Acne-Prone Skin 2/0
Good for oily/acne-prone skin
Ascorbic Acid (Vitamin C) Alcohol
Sensitive Skin 2/4
Good for sensitive skin
Ascorbyl Glucoside Ascorbic Acid (Vitamin C)
Caution for sensitive skin
Propylene Glycol Ascorbic Acid (Vitamin C) Alcohol Fragrance

Ingredients list

6 total
Lower hazard (1) Higher hazard (8)
All6 Solvent3 Skin Conditioning3 Masking3 Fragrance2 Humectant2 Viscosity Controlling2 Antioxidant2 Skin-Conditioningagent - Miscellaneous1
EWG CIR Ingredient Name & Cosmetic Functions Notes
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
1
Water
(Solvent)
1
A
Ascorbic Acid (Vitamin C)
(Antioxidant, Fragrance, Ph Adjuster, Skin Conditioning, Buffering Agent, Masking)
Good for Dry Skin
Good for Dry Skin
2
Alcohol
(Antifoaming Agent, Antimicrobial, Astringent, Masking, Solvent, Viscosity Controlling)
Bad for Dry Skin
Bad for Dry Skin
Bad for Sensitive Skin
Bad for Sensitive Skin
1
Ascorbyl Glucoside
(Antioxidant)
8
Fragrance
(Deodorant, Masking, Perfuming)

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

Propylene Glycol
Humectant, Skin Conditioning
Ascorbic Acid (Vitamin C)
Antioxidant, Skin Conditioning
Alcohol
Astringent
Ascorbyl Glucoside
Antioxidant

Benefits

Fungal-acne (Malassezia) safe
Good for oily/acne-prone skin

Concerns

Fragrance — 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
Ascorbyl Glucoside
Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 Antioxidant
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
Ascorbic Acid (Vitamin C)
Antioxidant, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A AntioxidantFragrancePh adjusterSkin conditioningBuffering agentMasking Good for Dry Skin
Alcohol
Antifoaming agent, Antimicrobial
Causes moisture evaporation - prone to dry out skinRead moreShow less
EWG 2 Antifoaming agentAntimicrobialAstringentMaskingSolventViscosity controlling Bad for Dry SkinBad for Sensitive Skin
Fragrance
Deodorant, Masking
Higher-hazard ingredient.Read moreShow less
EWG 8 DeodorantMaskingPerfuming

How to use

How to use

  • 1 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 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 (Vitamin C), Ascorbyl Glucoside

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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