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Vital-C Antioxidant Day Serum


Regular price $80.00 Sale

Our light, bright, powerfully potent daytime Vitamin-C serum is jam-packed with potent antioxidants, hyaluronic acid, and active, mighty extracts like olive leaf, mullein leaf, and licorice root to deliver immediate skin radiance.

Its chief tasks: help neutralizing your skin’s daily exposure to harmful free radicals such as pollution, UVA/UVB rays, and infrared radiation, as well as counteracting dark spots and discoloration for a lit-from-within glow.

Shake before use. In the morning, pat 4-5 drops gently all over freshly cleaned skin: face, neck and chest. Layer with other moisturizers and sunscreen (always) for extra efficacy and protection.

  • Neutralizes the harmful effects of free radicals: environmental pollution, UVA/UVBs, infrared radiation.
  • Boosts radiance and brightens complexion by evening out dullness, dark spots, discolorations and general skin damage.


Fast absorbing, silky, ultra light, non-sticky.


Herbaceous, floral, fresh.


Key Ingredients

Customer Reviews

Based on 18 reviews
Skin Type: Combination
Mandatory for the Skin

Was never that into using vitamin C serums until I tried this one - have now been using it religiously for the past few years and have noticed a visible difference in my skin.

Brightens and overall evens the complexion. Highly recommend !

Skin Type: Normal
I love this serum

Since I started using this serum a few years ago I have received so many compliments on my face looking 'radiant!' It always feels moist and hydrated. Circumference really makes great products!

Skin Type: Normal
Love this serum!

The Vital-C serum has an incredibly smooth texture and a very light scent that fades as it dries. After just a few weeks my skin looks bright and dewy without being greasy. It feels great on my skin and sits well under my usual moisturizer/sunscreen. Highly recommend!

Kevin LeBlanc
Skin Type: Dry
Love this serum

I haven't used a Vitamin C serum in a while and I just got this one after hearing great things about it, and loving all the other Circumference products I use. After 2 weeks of this product my skin has gotten back its glow and my friends have commented on how amazing and luminous my skin is!!! Can't recommend enough.

Skin Type: Combination
Vital-C Antioxidant Day Serum :’ )

This is the first time I’ve used a skincare product with Vitamin C, and the first couple weeks have been lovely so far. Within the first few days, the tone of my skin was noticeably more even and I haven’t felt any discomfort, which honestly surprised me. It is indeed light, yet the smell is beautifully nuanced and it absorbs into my skin easily without leaving an unpleasant texture. I’m looking forward to trying more from Circumference the next time I order this serum!

60 Day Guarantee

If you are not 100% happy with our products or service, then we aren’t either. We offer a risk-free, 60-day, 100% full-refund return policy. If you are not satisfied with your order, contact us and we’ll assist you in processing your return.