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Vitamin C 20% Serum

A triple-action antioxidant

5.0
Rated 5.0 out of 5 stars
141

*The new Blair Skincare packaging will gradually replace the current design through 2024 and 2025. During this transition, you may receive either packaging*

Boost your skin’s radiance and support healthy collagen production with our potent 20% L-Ascorbic Acid and THD Ascorbate vitamin C serum.

Our triple-action antioxidant is short and long-acting, featuring a time-released delivery system to deliver a highly-concentrated dose of Vitamin C that transforms dull, aging skin into a bright, glowing complexion. This age-defying staple provides antioxidant protection, supports healthy collagen production, and visibly reduces hyperpigmentation, delivering the kind of long-term benefits you want to make a mainstay in your routine.

Vitamin C 20% Serum is a Key Three product! Learn more about The Key Three here.




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Recommended For

Normal, combination, dry, and mature skin types.

How To Apply

Once or twice daily after cleansing and toning, apply 5-6 drops to the face, neck, and chest and gently massage onto the skin.

When To Use

Apply every morning, and optionally at night for added benefits.

Texture

Feels like a weightless serum that instantly soaks into the skin & creates a subtle bounce on the skin’s surface.

Ingredients

Methyl Trimethicone, Cyclopentasiloxane, Trimethylsiloxysilicate, Tetrahexyldecyl Ascorbate, Dimethiconol, Ascorbyl Glucoside, Ascorbic Acid, Arbutin, Phyllanthus Emblica Extract, Ascorbic Acid/Orange/Citrus Limon/Citrus Aurantifolia Polypeptides, Arctostaphylos Uva Ursi (Bearberry) Leaf Extract, Ascorbyl Palmitate, Purified Water, Citrus Terpenes, Phospholipids, Tocopheryl Acetate, Retinyl Palmitate, Superoxide Dismutase, Ubiquinone, Phenoxyethanol.

Vitamin C 20% Serum

$138.00

Visibly brightens dull skin and improves skin’s firmness

while defending against free radical damage.

BENEFITS

Leaves the skin with a dewy glow and improves the overall appearance of tone & texture

Visibly brightens dull skin and improves skin’s firmness

while defending against free radical damage.

BENEFITS

Leaves the skin with a dewy glow and improves the overall appearance of tone & texture

OUR INGREDIENTS

The Science Behind Results

Slider Image
OUR INGREDIENTS

The Science Behind Results

Morning Routine

  1. Cleanse / to wash and cleanse
  2. Tonic / to brighten and Clarify
  3. Vitamin C / to protect and brighten
  4. Serum / to amplify results
  5. Eye Cream / to depuff and fight wrinkles
  6. Moisturizer / to hydrate and smooth
  7. Sunscreen / to protect against UV damage

Evening Routine

  1. Cleanse / to remove makeup and impurities
  2. Tonic / to tighten and illuminate
  3. Serum / to boost results
  4. Eye Cream / to hydrate and restore
  5. Retinoid / to support collagen and fight aging
  6. Moisturizer / to hydrate and smooth
5.0
Rated 5.0 out of 5 stars
Based on 141 reviews
141 reviews
  • LL Profile picture for Louise L.google logo
    Louise L.
    Verified Reviewer
    I recommend this product
    Skin Type: Normal
    Age: 35-54
    Rated 5 out of 5 stars
    6/1/25
    Another winner

    So far over loved all of my Skin By Blair products. This Vit C is amazing. It’s so lightweight and fresh feeling, no smell, and leaves no strange residue like many other Vit C products I’ve tried.

  • CA
    Carmen A.
    I recommend this product
    Skin Type: Combination
    Age: 35-54
    Rated 5 out of 5 stars
    6/1/25
    Feels Amazing

    This serum feels amazing and I love the smell, also.

  • AB
    Angela B.
    Verified Reviewer
    I recommend this product
    Skin Type: Dry
    Age: 35-54
    Rated 5 out of 5 stars
    5/31/25
    Skin is glowing!

    I've been using the Skin By Blair Vitamin C 20% Serum and I’m seriously impressed. It gives my skin a noticeable glow without any irritation, and it layers really well under moisturizer and SPF. I love that it’s lightweight but still feels like it’s doing something—my complexion looks brighter and more even. Definitely a staple in my routine now!

  • GT
    Gwen T.
    I recommend this product
    Skin Type: Dry
    Age: 18-35
    Rated 5 out of 5 stars
    5/27/25
    Life changing

    Blair’s vitamin C serum has done so much for my skin. My sun spots have faded and my skin has such a nice glow now. I use it every morning and my skin feels so hydrated after I use it. Highly recommend. This product also lasts a long time too.

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