Day Serum

photo of two C-Firma bottles and one TLC Framboos Glycolic Night Serum displayed on a stack of colored lucite blocks against a light blue background
photo of an open C-Firma bottle and TLC Glycolic Framboos Night Serum displayed on a stack of colored lucite blocks against a light blue background
photo of several C-Firma bottles arranged in two rows slightly offset against an orange background
photo of a C-Firma bottle and B-Hydra bottle in front of a background split into bright orange and light blue plus objects painted orange in front of the orange side and object painted blue in front of the blue side
photo of a C-Firma bottle on its side against a background split into bright orange and light blue and two oranges painted orange

Day Serum

Added to Bag

Day Serum

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+ Pick a deluxe sample duo (our treat)!

Available on orders over $50. Customers can select deluxe sample duo of their choice on qualifying orders. Offerings subject to change based on availability. Limit one per order/per person. Limited quantities available while supplies last. 


A super-potent vitamin C day serum packed with a powerful antioxidant complex and fruit enzymes to firm and brighten the appearance of skin while improving the signs of photoaging.

Product Information

Letter from the Founder Intro

A Note

C-Firma was one of the original six products I made. I knew I wanted a vitamin C product because your skin needs it, and it’s something you can use every day to prevent and correct damage, and it’s as great for young skin as it is for mature skin. The l-ascorbic acid we use is the gold standard, and we use it at 15 percent so it’s as effective as possible.


xx Tiffany

C for Yourself Smoothie

For brighter, firmer, healthy-looking skin

1 pump C-Firma™


1-2 drops Virgin Marula Oil


1 pump Protini™

Smoothie Top Off

Top it off!

Mix it up!

All Drunk Elephant serums, oils, and creams are formulated to work well together. Instead of layering, waiting for things to dry, and layering some more, you can just mix everything together in the palm of your hand and apply. 

Key Ingredients

Product Formula Closeup

Potent Antioxidant Complex (15% L-Ascorbic Acid plus Ferulic Acid and 1% Vitamin E)

Firms and brightens the look and feel of skin while minimizing the signs of photoaging from pollution and other environmental stressors.

Pumpkin Ferment and Pomegranate Extract

These ingredients work together to enzymatically dissolve dead surface skin cells, minimizing the appearance of pores.


A chronopeptide that mimics the antioxidant benefits of vitamin D for more youthful-looking skin.

Vitis Vinifera (Grape) Extract

Potent antioxidant that aids in improving skin's tone.