obagi Professional-C™ Serum 15%
obagi Obagi Professional-C™ Serum 15% lists 6 ingredients on its label, 5 decoded. See what each one does, its irritancy and comedogenic tendency, and its status in national inventories.
Ingredients overview
Label order. Colour is our internal rating: green routine, yellow restricted or worth a look, red prohibited or high-risk, grey not yet decoded.
Ingredients are listed in label order; the order reflects the label only, not exact concentrations.
Highlights
Free of parabensFree of siliconesFree of sulfatesFree of mineral oilFree of essential oilsFree of formaldehyde releasersContains alcoholContains EU-26 allergensContains fragrance
Formulation view Aqueous serum with water and propylene glycol base, containing 15% pure L-ascorbic acid and ascorbyl glucoside for potent antioxidant action. Alcohol aids solubility; fragrance is included. Best for those seeking high-dose vitamin C benefits. Factory observation: High-concentration pure vitamin C is highly unstable; extreme care with light-blocking packaging and pH stability monitoring is required.
Key ingredients
- HUMECTANT
- Propylene Glycol
- ANTIPLAQUE
- Water
- ANTIFOAMING
- Alcohol
- ANTIOXIDANT
- Ascorbyl Glucoside
- 矫味剂
- Fragrance
Other ingredients
Skim through
| Ingredient | What it does | Irr. · Com. | Rating |
|---|---|---|---|
| Propylene Glycol | HUMECTANT, FRAGRANCE, SOLVENT, VISCOSITY CONTROLLING, SKIN CONDITIONING - HUMECTANT, SKIN CONDITIONING - MISCELLANEOUS | 1 · 0 | Green |
| Water | ANTIPLAQUE, SKIN CONDITIONING, SOLVENT | 0 · 0 | Green |
| L-Ascorbic Acid | Not decoded yet | — | — |
| Alcohol | ANTIFOAMING, ANTIMICROBIAL, ASTRINGENT, FRAGRANCE, SOLVENT, VISCOSITY CONTROLLING | 1 · 0 | Yellow |
| Ascorbyl Glucoside | ANTIOXIDANT | 0 · 0 | Green |
| Fragrance | 矫味剂,增香剂 | — | Yellow |
Ingredients explained
- Propylene Glycol
- Polyol humectant at 3-10%; hygroscopic, slight tackiness, mild irritation at high conc., verify preservative efficacy, no allergen.
- Water
- Primary solvent and base; requires preservative system to prevent microbial growth
- L-Ascorbic Acid
- Not decoded yet
- Alcohol
- Ethanol for solubility/drying at 5-15%; high conc. is drying/irritating, avoid lip/eye, low residue, balance with humectants.
- Ascorbyl Glucoside
- Stable Vitamin C derivative, antioxidant; more stable than pure ascorbic acid, releases activity slowly in neutral/basic conditions.
- Fragrance
- Fragrance; concentration must control allergen risk, label specific components
Source: full ingredient list published on the product label, collected 2026-09-18. Ratings are our internal reading, not a regulatory conclusion. · Product page
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