C-Firma™ Fresh Day Serum - Sérum de Dia

What I love most about the new 'Fresh' version is that you activate the product yourself. By mixing the liquid serum base with the powder, you ensure the 15% l-ascorbic acid is at its peak potency from day one. It does have that characteristic 'hot dog water' or metallic scent (typical of pure Vitamin C), and the texture is a bit tacky at first—though that disappears once you layer your moisturizer on top. Pro Tip: Keep it in the fridge to extend its shelf life and prevent oxidation even longer.

Very hydrating

This lightweight serum only needs one pump. I love that there isn’t a scent, and leaves my skin with a glowy hydration look all day. I also found it easy to incorporate into my daily routine! And the glow works really well under my makeup.

Good First Impressions

This feels like a really innovative take on vitamin C, especially with the mix-it-fresh format. I like the idea of activating it yourself so it stays potent, and the texture is lightweight and absorbs quickly without feeling greasy. I haven’t been using it long enough to speak to long-term brightening or dark spot results yet, but so far my skin looks fresh and feels smooth with no irritation. Definitely promising, and I’m looking forward to seeing how it performs with more consistent use.

Great for the skin

I received this product complimentary for review, and I’ve been testing it consistently in my morning routine. The C-Firma Fresh 15% Vitamin C Serum feels thoughtfully formulated, especially with the fresh-mix packaging that keeps the vitamin C potent. I appreciated being able to activate it myself — it gave me confidence that the formula was fresh and effective. The texture is lightweight and slightly creamy, not watery. It absorbs well after a minute or so and layers nicely under moisturizer and sunscreen. I didn’t experience pilling when pairing it with other products, which is a big plus. After a few weeks of use, I noticed my skin looked brighter and more even overall. It helped reduce dullness and gave me that healthy glow, especially around my cheeks. My complexion looks more refreshed in the mornings. I also appreciate that it includes antioxidants beyond vitamin C, which makes it feel like a well-rounded protective serum. One thing to note: it has a mild, natural scent (typical of vitamin C serums), but it fades quickly. If you’re very sensitive to texture or scent, that’s something to keep in mind. Overall, I think this is a great option if you’re looking to add a powerful vitamin C to your routine for brightness and antioxidant protection. I would recommend it to anyone wanting smoother, more radiant-looking skin.

I had super high hopes for this product. But it immediately broke me out like crazy and I have amazing skin so it was not what I was expecting. So needless to say I will not be using it again. Also I expected a decent size product but it was a mini size

Great vitamin C product. It didn’t irritate my acne prone skin, zero negative reactions. This serum is lightweight and absorbs really quickly. My skin felt a little sticky and tightened at the beginning but once you apply the moisturizer this feeling is gone. I like this product and can recommend if you like vitamin C products

Love

I really enjoyed this product because I felt like it was soothing enough for my skin. It’s tough sometimes to find a resurfacing serum that doesn’t irritate your skin and performed very well for me and didn’t irritate my skin

I recently tried this C-Firma Fresh 15% Vitamin C Day Serum and I loved the whole concept idea of mixing the product myself. I loved that it doesn’t have a strong scent. It absorbed quickly into my face and I felt a mild tingling effect which It makes me believe it’s working. I loved how I noticed my face looked more brightened and glowing.

My new everyday skincare

Absolutely love this serum and how it was so light weight. It left my skin glowing and I could see a difference in my skin within a few days. I have been reaching more and more for this item everyday. It’s in my everyday go to skincare bag

It’s soooo good!

Okay I really love this. It’s super lightweight, sinks in fast, and doesn’t mess up my makeup at all. My skin looks brighter and just healthier overall, and it hasn’t irritated me. Would totally buy again!!

I absolutely love the C-Firma Fresh Vitamin C Serum from Drunk Elephant — it’s become a staple in my skincare routine! This serum instantly brightens my complexion and helps fade dark spots without irritating my skin. I adore the fresh, invigorating scent and how lightweight it feels while soaking in quickly and leaving my skin looking radiant and glowy. Over time, I’ve noticed a real improvement in texture, firmness, and overall brightness — it’s like a daily boost of sunshine in a bottle!

You have to mix the liquid part with the powder, it’s easy, but it seems like a marketing technique. The formula is nice and liquid rather than creamy, and it absorbs easily. It caused no irritation. However, I can’t speak about the long-term results since this is only a 4 ml sample. When I use this serum, my skin looks brighter and even. Nothing dramatic though, compared to other similar products, for example I’ve used the e.l.f. Vitamin C serum, and I find it very similar to this one.