SkinCeuticals C E Ferulic With 15% L-Ascorbic Acid — Efficacy 4.6/5.0, Safety 4.5/5.0 | DemythSkin
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[ DemythSkin Verdict ]
SkinCeuticals C E Ferulic With 15% L-Ascorbic Acid
SkinCeuticals

SkinCeuticals C E Ferulic With 15% L-Ascorbic Acid

SerumAntioxidant Protection
Efficacy
Exceptional
4.6 / 5.0
Safety
Safe
4.5 / 5.0
System Verdict
This is still one of the most clinically-optimized vitamin C antioxidant serums on the market, but you are paying a premium for a very lean, purely functional formula. The efficacy hinges on a high 15% dose of pure L-ascorbic acid with 1% vitamin E and 0.5% ferulic acid at a low pH that maximizes penetration and stability, giving genuine brightening, collagen-support, and strong environmental protection without padding the INCI with fluff. The base is intentionally simple—mainly solvents and humectants—so you are not getting extra treatment actives or barrier-repair lipids; all the score comes from the well-studied antioxidant system and its clinically validated parameters rather than breadth of benefits.
Active Ingredients Detected
S Tier: Gold StandardsHigh Clinical Proof | Skin-Transformative
Ascorbic Acid
A Tier: Good BasicsProven Results
GlycerinTocopherolFerulic AcidPanthenolSodium Hyaluronate
B Tier: Supporting IngredientsPromising Ingredients
Ethoxydiglycol
What Each Ingredient Does
Water
solvent base
Ethoxydiglycol
solvent, helps dissolve actives
Ascorbic Acid
antioxidant, brightening active
Propylene Glycol
humectant, penetration enhancer
Glycerin
humectant, hydration support
Laureth-23
emulsifier, texture aid
Tocopherol
antioxidant, lipid protection
Phenoxyethanol
preservative
Triethanolamine
pH adjuster, buffering agent
Ferulic Acid
antioxidant, stabilizes vitamin C & E
Panthenol
humectant, soothing agent
Sodium Hyaluronate
humectant, water-binding
Full Ingredient List (INCI)

Water, Ethoxydiglycol, Ascorbic Acid, Propylene Glycol, Glycerin, Laureth-23, Tocopherol, Phenoxyethanol, Triethanolamine, Ferulic Acid, Panthenol, Sodium Hyaluronate

Frequently Asked

Is SkinCeuticals C E Ferulic With 15% L-Ascorbic Acid worth it?

SkinCeuticals C E Ferulic With 15% L-Ascorbic Acid scores 4.6 out of 5.0 for efficacy (Exceptional) and 4.5 out of 5.0 for safety (Safe) on DemythSkin's independent ingredient analysis. This is still one of the most clinically-optimized vitamin C antioxidant serums on the market, but you are paying a premium for a very lean, purely functional formula. The efficacy hinges on a high 15% dose of pure L-asc

What are the key active ingredients in SkinCeuticals C E Ferulic With 15% L-Ascorbic Acid?

SkinCeuticals C E Ferulic With 15% L-Ascorbic Acid contains these gold-standard actives with strong clinical evidence: Ascorbic Acid.

Does SkinCeuticals C E Ferulic With 15% L-Ascorbic Acid contain fragrance or known irritants?

DemythSkin's analysis found no flagged irritants in SkinCeuticals C E Ferulic With 15% L-Ascorbic Acid. It scores 4.5 out of 5.0 for safety.

How is SkinCeuticals C E Ferulic With 15% L-Ascorbic Acid scored?

DemythSkin grades every product on two independent axes: efficacy (whether the ingredients have clinical evidence of working) and safety (irritation and sensitisation risk). Ingredients are classified S through D against a database of over 3,000 compounds. No brand pays for a score.

Analyze on DemythSkin →

Analysis last updated: 2026-08-01. DemythSkin is an independent ingredient analyzer. Scores are computed by a deterministic rubric from published clinical evidence — no brand pays for a score.