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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 37 reviews
Jade Koning
Skin Type: Dry
Best Vitamin C serum I've tried

Love love LOVE this serum... I use it twice a day and it has really brightened, toned and plumped up my complexion! I saw the other reviews before I bought this and thought, ok can it be THAT good? AND IT IS!! Don't wait... try it... its very gentle, smells great and I will only be using this serum for Vitamin C for my skin from now on. Thank you Jina and team! x

Skin Type: Oily
Perfect Skin

This serum is the best Vit C serum that I’ve used thus far - love the viscosity and the way it makes my skin feel.

Kilee Kearns
Skin Type: Dry
Best Skincare EVER!!

I have dry acne prone skin, so I'm always a bit wary when trying out new products. But with Circumference products are one of the best skincare products I've tried. The Vital C-Antioxidant Day Serum feels great on my skin and I love using this apart of my skincare routine. It leaves my skin looking glowy and I've seen a huge difference to the texture of my skin!

Santina Rizzi
Skin Type: Oily

I loved all your products!! I’m actually wearing the Green Clay Detox Face Mask right now. I especially loved the daily face serum, it made me look like I was glowing but not in a greasy way. Thank you guys so much for sending those over. I’m definitely going to replenish when I run out of the products.

Skin Type: Normal
Best Skincare Brand Ever

The Vital-C Antioxidant Day Serum is sooo nice. In a week or two of using it my skin tone already looks more even and has brightened my complexion. A few drops goes a long way and it has a smooth / non greasy texture. It absorbs into the skin really nicely. Highly recommend!

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.