Drunk Elephant C-Firma Fresh Day Serum
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Formulation Summary
A premium 15% L-ascorbic acid serum with a unique two-part mixing system. The vitamin C powder is stored separately and mixed into the liquid base before first use, maximizing freshness and stability. The formula includes the CE Ferulic core plus fermented pumpkin and pomegranate extracts, multiple botanical antioxidants, and turmeric-derived compounds. It is the best-selling vitamin C serum at Sephora.
Drunk Elephant's innovative approach separates the L-ascorbic acid powder from the liquid base until the user mixes them. This ensures the vitamin C is fresh at first use, addressing the oxidation problem that plagues all water-based L-ascorbic acid serums. The core CE Ferulic ratio matches SkinCeuticals (15% ascorbic acid, ferulic acid, vitamin E). Beyond the basics, the formula includes fermented pumpkin extract for enzymatic exfoliation, fermented pomegranate for antioxidant activity, marula oil for fatty acid support, and three tetrahydrocurcuminoid compounds (turmeric derivatives) for anti-inflammatory activity. The formula excludes essential oils, silicones, and synthetic fragrance per the brand's 'Suspicious 6' philosophy.
Quick Facts
Designed For
- •Those who want maximum freshness from their vitamin C serum
- •Users seeking a CE Ferulic formula with added botanical antioxidants
- •People comfortable with a premium price for innovative packaging and formulation
- •Sephora shoppers who want a luxury alternative to SkinCeuticals
- •Those following the Drunk Elephant 'Suspicious 6-free' philosophy
May Not Suit
- •Budget-conscious shoppers ($78 for 28ml is premium; Timeless offers similar CE Ferulic for $26)
- •Users sensitive to 15% L-ascorbic acid
- •Those who dislike mixing products before use
- •People sensitive to wheat protein (hydrolyzed wheat protein is present)
- •Users who want a non-tacky texture
Key Ingredients
| Ingredient | Concentration | Function |
|---|---|---|
| L-Ascorbic Acid | 15%brand-confirmed | Pure vitamin C stored as powder until mixing. The separate storage prevents oxidation before first use. At 15%, matches the SkinCeuticals standard. Provides antioxidant protection, brightening, and collagen stimulation. |
| Ferulic Acid | — | Stabilizer and photoprotection enhancer. Part of the CE Ferulic combination. Doubles the photoprotective benefit of the vitamin C and E pair. |
| Tocopherol (Vitamin E) | — | Fat-soluble antioxidant. Completes the CE Ferulic trio. Provides synergistic antioxidant activity with vitamin C and ferulic acid. |
| Lactobacillus/Pumpkin Ferment Extract | — | Fermented pumpkin extract. Contains natural enzymes that provide mild exfoliation. Also provides vitamins and antioxidants. This is a differentiating ingredient not found in other CE Ferulic serums. |
| Tetrahydrocurcuminoids (Turmeric Derivatives) | — | Three turmeric-derived antioxidant compounds. More stable and bioavailable than raw curcumin. Provide anti-inflammatory and antioxidant activity. |
The Formulation Explained
Two-part freshness system
The vitamin C powder is stored in a separate chamber from the liquid base. The user activates the product by mixing them before first use. This ensures the L-ascorbic acid has not degraded before the bottle is opened. Once mixed, the serum behaves like any other L-ascorbic acid formula and will gradually oxidize over 3-6 months.
CE Ferulic plus botanicals
The core CE Ferulic combination (vitamin C, E, ferulic acid) is supplemented with an extensive botanical roster: fermented pumpkin, fermented pomegranate, grape juice, Indian gooseberry (amla), green tea, licorice root, and turmeric derivatives. These add layers of antioxidant and anti-inflammatory activity beyond the basic CE Ferulic framework.
Suspicious 6-free
Drunk Elephant excludes what they call the 'Suspicious 6': essential oils, drying alcohols, silicones, chemical sunscreens, fragrance/dyes, and SLS. The vitamin C serum adheres to this philosophy. This resonates with consumers seeking 'clean' formulations, though the classification is the brand's own, not a regulatory standard.
Price positioning
At $78 for 28ml, C-Firma sits between SkinCeuticals ($182) and mid-range CE Ferulic serums like Timeless ($26) and Maelove ($33). The premium reflects the innovative packaging, extensive botanical roster, and Sephora prestige positioning. The core vitamin C, E, and ferulic acid actives are functionally similar across all these products.
Ingredients to Know
Penetration enhancer listed second, indicating a high concentration. Helps L-ascorbic acid and other actives penetrate the skin. May amplify both efficacy and irritation.
Marula oil provides omega fatty acids and antioxidants. A signature Drunk Elephant ingredient used across their line. Lightweight and generally well tolerated.
Protein fragment used for skin conditioning. May be a concern for individuals with wheat or gluten sensitivities, though topical risk is debated.
Amino sugar that inhibits melanin transfer. Adds brightening support alongside the vitamin C. Also found in Vibriance Super C.
User Feedback Patterns
Full INCI List
37 ingredients · Click "Show full list" to view
About Drunk Elephant
The brand confirms 15% L-ascorbic acid. Full INCI lists are provided. The brand explains each ingredient category on their website. Ferulic acid and vitamin E concentrations are not individually disclosed. The 'Suspicious 6-free' philosophy is prominently featured.
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Sources
- • https://www.drunkelephant.com/collections/serums/c-firma-fresh-vitamin-c-day-serum-812343034358.html
- • https://incidecoder.com/products/drunk-elephant-c-firma-fresh-day-serum-2021-reformulation
- • https://skinsort.com/products/drunk-elephant/c-firma-fresh-day-serum
- • https://www.sephora.com/product/c-firma-day-serum-P400259
- • https://www.amazon.com/Drunk-Elephant-C-Firma-Fresh-Serum/dp/B09B4B1ZJQ
Last updated: 2026-03
Rating Scales
Comedogenicity (0-5)
Likelihood of clogging pores. 0 = won't clog, 1-2 = low, 3 = moderate, 4-5 = high.
Irritancy (0-5)
Potential for skin irritation. 0 = non-irritating, 1-2 = low, 3 = moderate, 4-5 = high.
Ratings based on published ingredient studies. Individual reactions may vary.