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Why Your Vitamin C Serum Might Not Be Working

by Foxy Face |

 

 


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A Note From Diana, Medical Esthetician

Why I Still Reach For This First

There is an ingredient that has been in my kit for over two decades. It was there when I was teaching esthetics at the college level, it is still there now, and I will be recommending it when every trend that came after it has quietly faded.

Vitamin C.

Not because it is having a moment — it has been having a moment for thirty years. But because it is one of the few ingredients with the science to back up everything people say about it. Antioxidant protection. Collagen support. Brighter, more even skin tone. Faded dark spots. Softer texture. All of it, from one well-formulated serum applied consistently.

What I want to do here is cut through the noise. Tell you what vitamin C actually does, why the formulation matters more than most people realize, and walk you through the eight serums we carry at Foxy Face — so you understand what each one is for and which one belongs in your routine.

Vivier Serum 30 beauty award badge, 2026 Alastin C-RADICAL Defense Antioxidant Serum NewBeauty award, 2024 Vivier Radiance Serum beauty award 2025

Why Your Skin Needs Vitamin C — Every Single Day

Your skin is under constant attack. Sun exposure, pollution, blue light from your phone, even just the natural process of aging — all of it generates free radicals, unstable molecules that break down collagen and elastin faster than your skin can repair itself. Sunscreen protects you from UV. Vitamin C protects you from almost everything else, while also doing some repair work of its own.

"Vitamin C doesn't just protect your skin on its own — it increases the efficacy of your SPF. Twenty-three years of practice, and it's still one of the most underrated steps in a morning routine."

— Diana, Medical Esthetician

That is the real reason it has stayed relevant for thirty years. It is not one-trick. A well-formulated vitamin C serum can brighten an uneven tone, fade the look of dark spots, soften fine lines, and support your skin's own collagen production — often all at once.

But here's what most people do not realize: not all vitamin C is the same, and not all skin needs the same percentage or formulation. The strength, the delivery system, and what else is paired with it — peptides, antioxidants, brightening agents — all change what a serum is actually capable of. That is why I do not hand every client the same bottle.

Eight Serums — Vivier & Alastin

The Benefits, Matched to Your Skin

Every serum below does the same core job — antioxidant protection and visible repair — but each one is built for a different skin type or concern. Find the one that matches what you actually want to see change, and book a consultation if you want us to confirm it in person.

Vivier Serum 10 bottle
01

New to Vitamin C? Start Here

Serum 10

Gentle enough for sensitive skin, this is where we start anyone just beginning a vitamin C routine. It softens the first signs of aging without overwhelming your skin.

Shop Serum 10
Vivier Kine-C serum bottle
02

For Oily & Combination Skin

Kine-C

A lightweight, oil-free formula that smooths fine lines, boosts radiance, and refines texture — without ever feeling heavy on the skin.

Shop Kine-C
Vivier C E Peptides serum bottle
03

Our Best-Seller

C E Peptides

The one most clients land on for daily antioxidant defense. Visibly smooths, hydrates, and protects — built for normal to dry skin that wants consistent results.

Shop C E Peptides
Vivier Radiance Serum bottle
04

For Dullness & Uneven Tone

Radiance Serum

Brightens, fades the look of dark spots, and restores clarity to skin that feels tired or uneven. Suited to all skin types.

Shop Radiance Serum
Vivier QuintiSerum bottle
05

For Mature, Drier Skin

QuintiSerum™

An advanced, multi-benefit formula that boosts collagen, improves elasticity, and strengthens the skin barrier as skin matures.

Shop QuintiSerum™
Vivier Serum 30 bottle
06

For Stubborn Pigmentation

Serum 30

Our most targeted brightening serum, built for visible discoloration — surface-level and deeper. This is the one we reach for when pigmentation is the primary concern.

Shop Serum 30
Vivier GrenzCine Serum bottle
07

For Volume & Firmness

GrenzCine Serum

Restores lift and density for visibly firmer, more youthful-looking skin. Ideal if deeper lines and loss of firmness are your main concern.

Shop GrenzCine Serum
Alastin C-RADICAL Defense Antioxidant Serum bottle
08

Our Award-Winning Pick

C-RADICAL Defense (Alastin)

Multi-award-winning protection that brightens, refines texture, and defends against more than just the sun — including blue light and pollution.

Shop C-RADICAL Defense

Eight serums, one ingredient, very different jobs.

The honest truth is that the "best" vitamin C serum is the one matched to your skin — not the one with the highest percentage or the loudest marketing.

That is exactly what a consultation is for. Book a skin scan with us and we will tell you, specifically, which one of these belongs in your routine — and why.

Foxy Face Studio — Orangeville, ON

Ready to find your vitamin C serum?

Every treatment and consultation at Foxy Face begins with a real look at your skin. We will tell you, specifically, which one of these serums belongs in your routine — and why.

Book a Consultation
Find Us

117 Broadway Ave
Orangeville, Ontario