What it is: A potent 15 percent vitamin C day serum packed with antioxidants, nutrients, and fruit enzymes to visibly firm, brighten, and improve the signs of photoaging.Skin Type: Normal, Dry, Combination, and OilySkincare Concerns: Fine Lines and Wrinkles, Dullness and Uneven Texture, Loss of Firmness and Elasticity, Dark Spots, Redness, Acne and BlemishesFormulation: Lightweight SerumHighlighted Ingredients:- L-Ascorbic Acid: improve fine lines, wrinkles, and hyperpigmentation and help brighten skin- Ferulic Acid: protects against UV-generated free radicals- 1.0% Tocopherol: aka vitamin E, helps maintain moisture levels, and soothes irritationIngredient Callouts: This product is vegan and cruelty-free.What Else You Need to Know: C-Firma™ is designed to be mixed by you before its first use, which maximizes the potency of its ingredients while keeping the formula fresh. An antioxidant complex of l-ascorbic and ferulic acids, and vitamin E, reveal radiance, luminosity, and an even complexion as it hydrates and soothes. When worn under your sunscreen during the day, C-Firma™ Fresh works hard to ward off pollution and UV-generated free radical damage. C-Firma™ Fresh is formulated at a skin-friendly pH of 2.5 and dermatologist tested.Drunk Elephant is committed to using only ingredients that either directly benefit the health of the skin or support the integrity of their formulations. The brand focuses on healthy pH levels, formulations the skin recognizes, small molecular structure that’s easily absorbed, and effective active ingredients that also support the skin’s acid mantle. All of their products are designed to be mixed together—that’s what Drunk Elephant calls making a smoothie. (This is true for all of Drunk Elephant’s products except their sunscreen Umbra, which sits on top of the skin, keeping it safe.) The result is skin that is reset to its happiest, healthiest state.Drunk Elephant is a supporter of IEF (International Elephant Foundation) and is cruelty-free.Clinical Results: In a clinical study with 30 people after 4 weeks: - 100% showed improvement in skin’s tone and radiance - 96% showed improvement in overall hyperpigmentation - 93% showed smoother skin texture Results based upon 12-month real time data:- Proven to maintain nearly 95% of active Vitamin C for one year after mixingClean at SephoraClean at Sephora is our commitment to offering effective products without certain ingredients, such as parabens, sulfates, phthalates, and mineral oils. Learn more here.
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What it is: A potent 15 percent vitamin C day serum packed with antioxidants, nutrients, and fruit enzymes to visibly firm, brighten, and improve the signs of photoaging.Skin Type: Normal, Dry, Combination, and OilySkincare Concerns: Fine Lines and Wrinkles, Dullness and Uneven Texture, Loss of Firmness and Elasticity, Dark Spots, Redness, Acne and BlemishesFormulation: Lightweight SerumHighlighted Ingredients:- L-Ascorbic Acid: improve fine lines, wrinkles, and hyperpigmentation and help brighten skin- Ferulic Acid: protects against UV-generated free radicals- 1.0% Tocopherol: aka vitamin E, helps maintain moisture levels, and soothes irritationIngredient Callouts: This product is vegan and cruelty-free.What Else You Need to Know: C-Firma™ is designed to be mixed by you before its first use, which maximizes the potency of its ingredients while keeping the formula fresh. An antioxidant complex of l-ascorbic and ferulic acids, and vitamin E, reveal radiance, luminosity, and an even complexion as it hydrates and soothes. When worn under your sunscreen during the day, C-Firma™ Fresh works hard to ward off pollution and UV-generated free radical damage. C-Firma™ Fresh is formulated at a skin-friendly pH of 2.5 and dermatologist tested.Drunk Elephant is committed to using only ingredients that either directly benefit the health of the skin or support the integrity of their formulations. The brand focuses on healthy pH levels, formulations the skin recognizes, small molecular structure that’s easily absorbed, and effective active ingredients that also support the skin’s acid mantle. All of their products are designed to be mixed together—that’s what Drunk Elephant calls making a smoothie. (This is true for all of Drunk Elephant’s products except their sunscreen Umbra, which sits on top of the skin, keeping it safe.) The result is skin that is reset to its happiest, healthiest state.Drunk Elephant is a supporter of IEF (International Elephant Foundation) and is cruelty-free.Clinical Results: In a clinical study with 30 people after 4 weeks: - 100% showed improvement in skin’s tone and radiance - 96% showed improvement in overall hyperpigmentation - 93% showed smoother skin texture Results based upon 12-month real time data:- Proven to maintain nearly 95% of active Vitamin C for one year after mixingClean at SephoraClean at Sephora is our commitment to offering effective products without certain ingredients, such as parabens, sulfates, phthalates, and mineral oils. Learn more here.
SKU
2-P400259
Brand
Drunk Elephant
Category
beauty / skin-care / serums-treatments
Variants
1
Customer reviews
1.0
verified purchase
Not for me anymore
I used to love this product but after reintroducing it into my skin care routine I had to stop because it was causing me to break out like crazy. Honestly the worst acne I’ve had in my life (photo is 10 days after I stopped using the product)z Now I’m dealing with cancer scars :(It’s super unfortunate because I really loved this product and had repurchased it many times in the past. But my skin no longer agrees unfortunate
7/13/2026
3.0
verified purchase
It’s effective but the texture makes me not use it. It leaves a tacky oily finish and doesn’t layer well for me
5/17/2026
5.0
verified purchase
Love this serum!
Love this serum! I have sensitive skin and this doesn’t break me out or irritate my skin. It also has helped make my skin brighter and hydrated which I really love. Love this product and can’t recommend it enough!
5/12/2026
5.0
verified purchase
Visibly reduces dark spots
I have tried so many vitamin c serums and this is truly the only one that I notice a visible reduction in dark spots.
4/22/2026
4.0
verified purchase
Drunk Elephant C firma
I am testing Drunk Elephant C firma vitamin C day serum on my skin at night. It's tingling and has a strong odor, but my skin looks firmer in the morning. The sample is small, I hope to purchase this product to see if it will fade my dark spots on my face.
4/12/2026
4.0
verified purchase
lightweight and fast absorption!
The serum is very lightweight and absorbs fast which is good. It also didn’t leave my face feeling too greasy, yet was subtly hydrating. I will say I only used a sample size so I can’t speak on brightening effects as I think I would see that after long term use. Overall great first impression.
2/27/2026
5.0
verified purchase
Brightened my face and acne scars!
After using this product for the past two weeks, I can confidently say that it has helped brighten my face tremendously! It has also helped reduce the darkness of my acne scars, which I’m so happy about. I 100% recommend it!
2/27/2026
4.0
verified purchase
Great fresh concept and evened tone
I loved the new approach of mixing the serum once we get it! There’s a note inside the packaging that explains how it keeps ingredients fresher longer than if it were mixed before shipping (especially globally)! It was easy to mix and use after, no leaks and no issues. I noticed my acne scars starting to lighten up by the second day! I’m still breaking out, but this had helped even out the older breakouts. The scent is strong, but it’s not a huge issue for me.
2/26/2026
5.0
verified purchase
I’ve never tried a vitamin c serum where I had to mix a liquid base into a powder which I find so unique. It makes it feel like the vitamin c is fresh and more effective this way. This contains 15% L-ascorbic acid which is quite potent but best effective for skin brightening and even boosting collagen. I’ll definitely continue to use this long term to see better results.
2/26/2026
4.0
verified purchase
Vitamin C blast!
C-Firma Fresh 15% Vitamin C Day Serum feels like a vitamin C that actually means business, especially with the mix before use system that keeps it fresh and potent. The texture is lightweight, absorbs quickly, and sits well under moisturizer and sunscreen without pilling or feeling heavy. With consistent morning use, my skin looks brighter and more even, and I like that it combines 15 percent L-ascorbic acid with vitamin E and ferulic acid for a solid antioxidant blend that supports overall tone and smoothness.
