Skin1 product guide
C E Ferulic and Silymarin CF both contain 15% L-ascorbic acid and cost $185 for 1 fl oz. The useful difference is what comes with that vitamin C: vitamin E in C E Ferulic, or silymarin and salicylic acid in Silymarin CF. Start with how oily your skin is and whether you want an exfoliating acid in this step.
C E Ferulic is the clearer fit for normal-to-dry skin and a formula without listed denatured alcohol or salicylic acid. Silymarin CF is designed for oily, blemish-prone skin and adds 0.5% salicylic acid. Its alcohol-containing base and exfoliating ingredient are the main reasons to check how it fits alongside your current routine.
USD prices checked October 24, 2026, before tax and shipping. Unit price = listed price ÷ package ounces.
| Product | US retailer | Size | Price | Price per ounce |
|---|---|---|---|---|
| SkinCeuticals C E Ferulic — current formula | Dermstore US | 1 fl oz | $185.00 | $185.00/fl oz |
| SkinCeuticals Silymarin CF | Dermstore US | 1 fl oz | $185.00 | $185.00/fl oz |
The vitamin E option: 15% L-ascorbic acid, 1% vitamin E and 0.5% ferulic acid, with glycerin and sodium hyaluronate in the current formula.
Consider: No salicylic acid or phloretin is listed. Choose it for its vitamin E formula and normal-to-dry skin focus, rather than oil control.
Use: Apply 4–5 drops after morning cleansing to face, neck and chest; follow with the rest of your skincare and sunscreen.
The oily, blemish-prone option: 15% L-ascorbic acid, 0.5% silymarin, 0.5% ferulic acid and 0.5% salicylic acid in an oil-free serum.
Consider: Denatured alcohol is second in the list. The added salicylic acid makes this a different routine choice from a vitamin C serum without an exfoliating acid.
Use: Use 4–5 drops on dry face, neck and chest after morning cleansing and toning. Apply other skincare afterward and finish with sunscreen.
Choose the two options you are weighing. Read the ingredients below or compare how the products fit your routine here.
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Full published ingredient list
Aqua / Water / Eau, Ethoxydiglycol, Ascorbic Acid, Glycerin, Propylene Glycol, Laureth-23, Tocopherol, Phenoxyethanol, Sodium Hydroxide, Ferulic Acid, Carnosine, Panthenol, Sodium Hyaluronate, Pentylene Glycol, Taraxacum Officinale Rhizome/Root Extract - Dandelion Rhizome/Root Extract, Maltodextrin, Citric Acid, Eperua Falcata Bark Extract.
Full published ingredient list
Aqua/Water/Eau, Alcohol Denat., Ascorbic Acid, Propylene Glycol, Dipropylene Glycol, Laureth-23, Silybum Marianum Fruit Extract, Sodium Citrate, Salicylic Acid, Ferulic Acid.
The 15% number does not separate these bottles. Both also state 0.5% ferulic acid. C E Ferulic adds 1% vitamin E; Silymarin CF adds 0.5% silymarin and 0.5% salicylic acid.
If shine and blemish-prone skin drove your search, Silymarin CF is the formula specifically designed for that concern. If your skin feels dry and you mainly want the vitamin E combination, C E Ferulic is the closer match.
Silymarin CF puts a leave-on exfoliating ingredient into the morning serum step. That matters if your routine already includes a salicylic-acid toner, exfoliating pads or another leave-on acid. C E Ferulic provides vitamin C without adding salicylic acid.
Check the full ingredient lists against the products you already use before adding another exfoliating step. Choosing C E Ferulic is the simpler option if your existing exfoliant is already doing the job you want.
Silymarin CF lists denatured alcohol immediately after water. C E Ferulic does not list it and includes glycerin, panthenol and sodium hyaluronate. Neither list names fragrance/parfum.
These are practical formula differences for someone deciding between oil control and a more moisture-oriented serum base. The full lists are displayed above so you can compare a particular ingredient directly.
Both verified bottles are $185 for 1 fl oz: the cost per US fluid ounce is identical. There is no unit-price saving from moving to Silymarin CF.
Use one as the morning antioxidant step after cleansing and before the rest of your skincare. Silymarin’s brand directions specify dry skin and 4–5 drops, followed by other products and sunscreen.