A white bottle of Sanitas Vita C Serum with a silver band and light purple accents, placed on a textured beige linen background.

Vita C Serum

$78.00
$78.00 $104.00
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A white bottle of Sanitas Vita C Serum with a silver band and light purple accents, placed on a textured beige linen background.
  • A white bottle of Sanitas Vita C Serum with a silver band and light purple accents, placed on a textured beige linen background.
  • A white bottle of Sanitas Vita C Serum with a silver band and light purple accents, placed on a textured beige linen background.
Vita C Serum

Vita C Serum

$78.00
$78.00 $104.00

Not all vitamin C is created equal

Over the years, we've met many women who assumed vitamin C simply wasn't for them. It irritated their skin, felt too strong, or never seemed to deliver the results they hoped for. More often than not, it wasn't the ingredient itself—it was the form of vitamin C they were using.

Why We Chose It

This serum features a 30% concentration of THD Ascorbate, a stable, oil-soluble form of vitamin C that is exceptionally well accepted by the skin. Unlike traditional vitamin C serums that can lose potency or cause irritation, THD Ascorbate remains stable and works with your skin's natural lipid barrier to deliver antioxidant protection, brighten the appearance of uneven tone, and support firmer, healthier-looking skin.

The addition of squalane and nourishing seed butters leaves skin feeling calm while the vitamin C does its work. 

Especially If...

  • You've stopped using vitamin C because it felt irritating.
  • You're noticing uneven tone or lingering dark spots.
  • You're looking for one serum that brightens while supporting the skin barrier.

How to Use It

Apply 2–3 drops to clean skin each morning, covering the face, neck, and décolleté. Follow with moisturizer if needed, and finish with sunscreen.

Because THD Ascorbate is highly stable, it layers effortlessly into a daily routine without the concerns often associated with traditional vitamin C formulas. 

From the Treatment Room

Many women don't actually have sensitive skin—they've simply been using products their skin can't tolerate. When an ingredient is thoughtfully formulated, consistency becomes much easier.

And consistency is where healthy skin begins to change.

Chosen for The Northstar Collection because...

It delivers the proven benefits of vitamin C in a form that supports both results and the natural tolerance of your skin.

A Note About THD Vitamin C

When most people think of vitamin C, they're thinking of L-ascorbic acid. Which, while highly effective, can be unstable and irritating for some skin types. THD Ascorbate is a a more advanced form of vitamin C that remains shelf stable, is easily absorbed into the skin, and is readily bio-avilable to your body.

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