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Vita C Serum

4.9
Rated 4.9 out of 5 stars
267 Reviews

$104

1 fl. oz./30 mL
What it is

This fully active serum delivers a 30% concentration of THD ascorbate (a lipid-soluble vitamin C counterpart) to help defend against environmental free radical damage, fade the appearance of dark spots, and soften rough, uneven texture. Deeply hydrating, it leaves the skin looking firmer, smoother and brighter.

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Visibly Firm + Glow Duo

$204.00 $173.40

How it works

Vitamin C is one of the most science-backed ingredients in skincare, known for its ability to visibly brighten, protect, and support healthy-looking skin. For true efficacy, however, it must be delivered at a high enough concentration to drive results - without compromising skin comfort. Vita C Serum features a potent 30% concentration of THD ascorbate, a vitamin C counterpart that’s stable, lipid-soluble and converts to ascorbic acid within the skin. Because it’s readily accepted by the skin’s lipid barrier, it absorbs seamlessly with minimal risk of irritation. Nourishing murumuru and cupuaçu seed butters—naturally rich in vitamins A and C—provide deep hydration, while vegan squalane, a skin-identical lipid, helps guide these active ingredients precisely where they’re needed for optimal performance.

Dark Spots
Dark Spots
Age Defense
Age Defense
Dullness
Dullness
Lifting and Firming
Lifting and Firming
Rough/Uneven Texture
Rough/Uneven Texture

Ingredients

Squalane, Tetrahexyldecyl Ascorbate (Vitamin C), Safflower Oil/Palm Oil Aminopropanediol Esters, Astrocaryum Murumuru Seed Butter, Theobroma Grandiflorum (Cupuaçu) Seed Butter, Cholecalciferol (Vitamin D), Palm Alcohol, Lecithin, Phytosteryl Canolate, Helianthus Annuus (Sunflower) Seed Oil.

Results*

  • 91% said their skin was hydrated
  • 88% agree their skin felt healthy
  • 78% of people agree their skin looked bright
  • 78% said their skin looks even
  • 72% said their skin looks firm

*4-week consumer perception study with 32 panelists

Key Ingredients

Tetrahexyldecyl ascorbate

a 30% concentration of a lipid-soluble, vitamin C counterpart that converts to ascorbic acid in the skin to help brighten and protect the skin

Murumuru + cupuacu seed butters

a plant-based blend of exotic seed butters that helps calm skin redness, visibly smooths skin texture and deeply hydrates

Vegan squalane

a skin identical lipid that enhances ingredient delivery to help visibly improve the look of skin

How To Use

When
Frequency
Daily
Morning
Layer Over - Targeted treatments
Layer Under - Eye cream, moisturizer and sunscreen
Evening
Layer Over - Targeted treatments
Layer Under - Eye cream and moisturizer
How
Smooth 2 to 3 drops onto face, neck and chest.

Tips:

  • For extra brightening benefits, apply under Vitamin C Moisturizer during the day and Topical C at night.
  • A little goes a long way, so you don’t need much to reap the benefits of this product. If Vita C Serum ever feels heavy on your skin, use less product in the future.

The Experience

Scent
No scent
Texture
A smooth, midweight serum
Absorption
Spreads effortlessly over skin and absorbs quickly. Leaves skin feeling plump and hydrated but never sticky.


4.9
Rated 4.9 out of 5 stars
Based on 267 reviews
Total 5 star reviews: 242 Total 4 star reviews: 15 Total 3 star reviews: 6 Total 2 star reviews: 3 Total 1 star reviews: 1
96%would recommend these products
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Customers Talked About
267 reviews
  • PM
    paige m.
    Verified Buyer
    2 days ago
    Reviewing
    Vita C Serum
    Rated 5 out of 5 stars
    One of my faves!

    Makes my skin feel silky and smooth!

  • CM
    Christina M.
    Verified Buyer
    Age 45 - 54
    Skin Type Sensitive
    Skin Concern Aging + Fine Lines
    Climate Variable
    4 days ago
    Age 45 - 54
    Skin Type Sensitive
    Skin Concern Aging + Fine Lines
    Climate Variable
    Reviewing
    Vita C Serum
    Rated 5 out of 5 stars
    Feels like silk

    This product was recommended during a facial last fall. I have had issues with vitamin c causing breakouts but not with this! The serum is smooth and silky but absorbs easily. It has made so much improvement in my skin!

  • MN
    Mona N.
    Verified Buyer
    4 days ago
    Reviewing
    Vita C Serum
    Rated 5 out of 5 stars
    Best serum

    great product & have been using for years but really got into the serum the last 1-1/2 yrs -

  • DC
    Donna C.
    Verified Buyer
    1 week ago
    Reviewing
    Vita C Serum
    Rated 2 out of 5 stars
    Vita C Serum

    I love Vita C Serum! It gives my skin a bright glow and works well with Vita C moisturizer.

  • CD
    Cheryl D.
    Verified Buyer
    1 week ago
    Reviewing
    Vita C Serum
    Rated 5 out of 5 stars
    Vita C Serum

    This has been a regular product in my morning routine for several years. Another Sanitas product that I never go without!

DISCLAIMER: The products described on this website improve the appearance of the skin and are not intended to affect any structure or function of the skin or body, nor are they intended to diagnose, treat or prevent any disease or medical condition. The information on this website is not medical advice and is not a replacement for consulting with a healthcare provider. Individual results will vary based upon correct usage, body chemistry and skin type.