C-Firma Fresh Vitamin-C Day Serum

Drunk Elephant's C-Firma Fresh Vitamin-C Day Serum is a 15 percent vitamin C treatment that you mix yourself before the first use — powder into liquid, shaken until it dissolves. Drunk Elephant's reasoning is potency: mixing at the last moment means the active is at full strength when you start.

Skin types	Normal, dry, combination and oily
Targets	Slack or less springy skin · rough, patchy-looking surface · a flat tone · creasing and fine lines
Strength	15 percent vitamin C, pH 2.5
Key actives	L-ascorbic acid · ferulic acid · tocopherol 1.0%
When	Daytime, underneath sunscreen
Free from	Silicones · colorants · added fragrance · essential oils · vegan and cruelty-free

What it actually does

• A full antioxidant trio. L-ascorbic acid, ferulic acid and vitamin E work together here — Drunk Elephant credits the combination with revealing radiance and an evener-looking complexion while it hydrates and soothes.
• L-ascorbic acid on pigment and lines. Listed as improving the look of fine lines, wrinkles and hyperpigmentation while brightening the skin overall.
• Ferulic acid as the shield. Included to defend against free radicals generated by UV exposure.
• Tocopherol at 1.0%. Vitamin E holds moisture levels steady and calms irritation, per the brand.
• Worn under SPF, it works on pollution too. Drunk Elephant positions daytime use beneath sunscreen as the way to get the most out of it.
• Formulated at pH 2.5 — low, which is what a vitamin C formula needs to stay active, and a figure the brand describes as skin-friendly.
• Stays potent for a year once mixed. Nearly 95% of the active vitamin C is retained twelve months after mixing, based on the brand's real-time data over that period.
• What the clinical study reported. On 30 people over four weeks: all of them showed improvement in tone and radiance, 96% in overall hyperpigmentation and 93% in how smooth their skin texture was. Brand-run study on a small panel — individual results vary.
• Mixes with the rest of the range. Drunk Elephant designs its products to be combined in the palm — the smoothie approach — with Umbra, their sunscreen, as the one exception, since it is meant to stay on the surface.

How to use

1. Tap the bottle to loosen the powder inside.
2. Pour the liquid in slowly over the powder.
3. Screw the pump down tightly and wipe the outside clean.
4. Shake it until no powder is left undissolved, then snap the pump into place.
5. Use it in the daytime, with your sunscreen going on top.

Is it right for you?

Questions

Why do I have to mix it myself?

Vitamin C degrades once it is in solution. Keeping the powder and liquid apart until you are ready means the formula starts at full potency — and Drunk Elephant's data shows it still holds nearly 95% of its active vitamin C a year after you mix it.

Morning or evening?

Morning. It is a day serum, and the brand is explicit that it does its best work worn under sunscreen, where it helps counter UV-generated free radicals and pollution.

Can I mix it with my other Drunk Elephant products?

Yes — that is the brand's intended approach. Combine it in your palm with their serums, treatments or moisturisers. The only one they keep separate is Umbra, their sunscreen.

Is there any fragrance in it?

No. The formula is stated as entirely without silicones, colorants, added fragrance or essential oils, and it is vegan and cruelty-free. Drunk Elephant also supports the International Elephant Foundation.

Delivery, payment and returns?

Delivery takes 3 to 21 working days, depending on availability. Payment is by credit card, debit card, Instapay or mobile wallet — no cash on delivery. Returns cover defective, damaged or expired items only, reported within 1 day of delivery, refunded to the original payment method within 15–30 days.