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Drunk Elephant C-Firma vs SkinCeuticals C E Ferulic

The same three actives are on both labels: 15% L-ascorbic acid with vitamin E and ferulic acid. C E Ferulic is the serum that formula comes from. C-Firma Fresh is mixed from a powder and a liquid when you open it, so the vitamin C starts fresh, and adds licorice, amla and a pumpkin ferment.

Drunk Elephant C-Firma Fresh Day Serum costs 54% less per ounce: $82.38 / fl oz against $179.41 / fl oz.

Drunk Elephant

C-Firma Fresh Day Serum

$78

What it is
Vitamin C serum
Size
28 ml, $82.38 / fl oz
On Amazon
Sold by Drunk Elephant USA

Buy on Amazon

SkinCeuticals

C E Ferulic

$182

What it is
Vitamin C serum
Size
30 ml, $179.41 / fl oz
On Amazon
Resellers only, so not linked here

See the $35.95 dupe

Which one

Drunk Elephant C-Firma if you want the vitamin C mixed fresh when you open it.

SkinCeuticals C E Ferulic if you want the original the formula comes from.

Or a dupe for either

  1. Maelove Glow Maker Vitamin C Serum

    for Drunk Elephant C-Firma Fresh Day Serum

    $39.90vs $78−52% per oz

    $39.33 / fl oz against $82.38 / fl oz. Both list Ascorbic acid and Ferulic acid and Vitamin E.

    The classic vitamin C trio in both: 15% L-ascorbic acid with vitamin E and ferulic acid, plus sodium hyaluronate.

    What it does worse: Drunk Elephant ships it as a powder and a liquid you mix yourself, so it keeps longer, and adds licorice, amla and marula oil, while Maelove comes ready-mixed with aloe and wants using up faster once opened.

    Buy the dupeFull comparison

  2. Timeless Skin Care 20% Vitamin C + E Ferulic Acid Serum

    for SkinCeuticals C E Ferulic

    $35.95vs $182−88% per oz

    $21.26 / fl oz against $179.41 / fl oz.

    #21 in Facial Serums on Amazon

    Same trio of actives (L-ascorbic acid, vitamin E, ferulic acid) with a higher vitamin C percentage. More chance of tingling on sensitive skin, and it oxidizes faster, so finish it within about 3 months.

    Buy the dupeFull comparison

Questions

What is the difference between Drunk Elephant C-Firma and SkinCeuticals C E Ferulic?

The same three actives are on both labels: 15% L-ascorbic acid with vitamin E and ferulic acid. C E Ferulic is the serum that formula comes from. C-Firma Fresh is mixed from a powder and a liquid when you open it, so the vitamin C starts fresh, and adds licorice, amla and a pumpkin ferment.

Which is cheaper, Drunk Elephant C-Firma or SkinCeuticals C E Ferulic?

Drunk Elephant C-Firma Fresh Day Serum costs 54% less per ounce: $82.38 / fl oz against $179.41 / fl oz.

Is there a dupe for Drunk Elephant C-Firma?

Maelove Glow Maker Vitamin C Serum, about $39.90, 52% less. The classic vitamin C trio in both: 15% L-ascorbic acid with vitamin E and ferulic acid, plus sodium hyaluronate. Drunk Elephant ships it as a powder and a liquid you mix yourself, so it keeps longer, and adds licorice, amla and marula oil, while Maelove comes ready-mixed with aloe and wants using up faster once opened. A little more serum for about half the price per ml.

Is there a dupe for SkinCeuticals C E Ferulic?

Timeless Skin Care 20% Vitamin C + E Ferulic Acid Serum, about $35.95, 88% less. Same trio of actives (L-ascorbic acid, vitamin E, ferulic acid) with a higher vitamin C percentage. More chance of tingling on sensitive skin, and it oxidizes faster, so finish it within about 3 months.

Amazon prices as of Oct 1, 2026, 12:33 PM ET, subject to change: the price on Amazon at checkout is the one that applies. Retail price checked 25 September 2026.