Skin1 product guide
For the three SkinCeuticals liquid vitamin C serums compared here, start with your main concern: C E Ferulic for normal-to-dry skin and visible lines, Phloretin CF for uneven tone on normal-to-oily skin, or Silymarin CF for oily, blemish-prone skin. All three checked 1 fl oz bottles cost $185.
Want vitamin E and no listed denatured alcohol? Start with C E Ferulic. Want phloretin and a 10% vitamin C formula aimed at uneven tone? Choose Phloretin CF. Want salicylic acid alongside 15% vitamin C for an oily-skin routine? Look at Silymarin CF. Each occupies the same morning step before moisturizer and sunscreen.
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 Phloretin CF | 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 uneven-tone option for normal, combination and oily skin: 10% L-ascorbic acid, 2% phloretin and 0.5% ferulic acid in an oil-free liquid serum.
Consider: Denatured alcohol is third in the published list. It has no listed vitamin E or salicylic acid.
Use: In the morning, after cleansing and toning, apply 4–5 drops to dry face, neck and chest before other skincare. Follow with moisturizer as needed 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, Dipropylene Glycol, Alcohol Denat., Ascorbic Acid, Butylene Glycol, Triethyl Citrate, Phloretin, Ferulic Acid.
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.
All three use L-ascorbic acid, rather than making a vitamin C derivative the headline ingredient. Their named supporting antioxidants and exfoliating ingredients distinguish them.
If avoiding denatured alcohol is a priority, C E Ferulic is the only one of these three whose displayed list omits it. If you want an antioxidant step without salicylic acid, narrow the choice to C E Ferulic or Phloretin CF. All three displayed lists omit fragrance/parfum.
For oily skin, ask whether uneven tone or blemishes is the main reason for buying. Phloretin CF has the tone-focused positioning; Silymarin CF adds salicylic acid. The pair selector above lets you compare either one directly with C E Ferulic.
The C E Ferulic list shown here is the current US retailer formula with carnosine, dandelion-derived ingredients and Eperua falcata bark extract. It retains the stated 15% vitamin C, 1% vitamin E and 0.5% ferulic acid combination.
Older ingredient comparisons may describe a shorter C E Ferulic list. Use the full lists in this guide when checking the exact ingredients compared on this page.
At $185 for 1 fl oz each, all three work out to $185 per fl oz. Start with the ingredient and skin-concern fit rather than treating a higher vitamin C percentage as better value.
If $185 is beyond your budget, the C E Ferulic alternatives guide compares lower-priced vitamin C options. If you have already narrowed the choice to two SkinCeuticals bottles, use the linked pair guides for that specific decision.
These are alternative choices for the same place in a routine. Cleanse, apply your selected vitamin C serum, then use moisturizer if needed and finish with sunscreen. The manufacturer directions use 4–5 drops for face, neck and chest.
This chooser covers C E Ferulic, liquid Phloretin CF and Silymarin CF. It keeps the comparison focused on these three dropper bottles rather than mixing in gels, moisturizers or night antioxidants.