C³ Glow Veil Defense Serum
C³ Glow Veil Defense Serum
C³ Glow Veil Defense Serum
C³ Glow Veil Defense Serum
C³ Glow Veil Defense Serum

C³ Glow Veil Defense Serum

C³ Glow Veil Defense Serum

Offense–Defense Skincare™

A first-of-its-kind triple vitamin C serum designed to brighten at multiple levels of skin while protecting against UV, blue light, pollution, and free radicals.

SKIN TYPES
All, including sensitive skin.

SKIN CONCERNS
Dullness, uneven tone, fine lines, environmental damage, loss of radiance

$98 | 29ml
Replaces 4 products, lasts 2-3 months.

FREE SHIPPING ON U.S. ORDERS OVER $150

Cruelty-Free

Fragrance-Free

Derm-Approved

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C³ Glow Veil Defense Serum
Regular price $98.00
Regular price Sale price $98.00
FREE SHIPPING ON U.S. ORDERS OVER $150
FREE SHIPPING ON U.S. ORDERS OVER $150

Most vitamin C serums use one form of vitamin C. It only reaches one layer of skin and breaks down from sun, screens, and pollution—so results don’t last.

C³ Glow Veil uses three types of vitamin C, each working at a different level, at a different speed:

1) Fast at the surface for immediate radiance
2) Slow and deep for long-term brightness and firmness
3) Sustained-release for extended activity throughout the day

Our Offense–Defense Skincare™ system makes this possible. Triple vitamin C brightens at every level. Fullerene, Acetyl Zingerone, and Japanese Green Tea protects the skin from UV, blue light, and pollution—so brightness doesn’t break down.

The result: glowing, luminous skin. Radiance that holds through screens, sun, and city air.

For best results, apply C³ Glow Veil every morning after De-Spot Brightening Serum.

Targeted Correction (Offense)

  • Brightens deeply over time
    Ascorbyl Tetraisopalmitate—oil-soluble, penetrates slowly and deeply to improve firmness and tone.
  • Fades dark spots and evens tone quickly
    3-O-Ethyl Ascorbic Acid—rapid-acting, works at the surface for visible radiance.
  • Delivers lasting antioxidant protection
    Peptide-C—time-released vitamin C that keeps skin bright and protected all day.

Three types. Three levels.



Skin Protection (Defense)

  • Protects against free radicals from UV and blue light.
    Fullerene—next-generation antioxidant, exceptionally stable under light exposure for prolonged protection.
  • Protects against environmental stress

    Acetyl Zingerone—ginger-derived, keeps skin calm and comfortable.
  • Soothes irritation and redness
    Japanese Uji Green Tea Extract—rich in polyphenols that soothe and reduce inflammation.
  • Builds long-term skin strength
    Carrot Extract + Silver Vine Fruit Extract—beta-carotene, antioxidant-rich, supports skin health over time.

Vitamin C doesn’t work if it breaks down first.

Modern skin is under constant attack—UV, blue light, screens, pollution. Most vitamin C serums weren’t built for this.

C³ Glow Veil is built for modern skin. Three types of vitamin C brighten at every level.
Antioxidant defense protects against daily damage.

Brightness you can count on—morning to night.

  • Dull, tired-looking skin
  • Uneven tone and dark spots
  • Daily screen and sun exposure
  • Urban environments with pollution
  • Sensitive skin that reacts to vitamin C

For best results, apply C³ Glow Veil morning as your treatment step, after cleansing and before moisturizer.

Apply

Apply 1-2 pumps evenly across the face.

Under eyes

Gently pat a small amount under the eyes to target dark circles.

Layer

Use SPF during the day for enhanced protection.

For enhanced results, pair with De-Spot Brightening Serum.

Our formulas are crafted with clinical actives, Japanese botanicals, mineral-rich onsen water and soothing ingredients. Each piece replaces four products in your routine—creating a capsule wardrobe for your skin.

Full Ingredients List

Fragrance-free. Cruelty-free.

Complimentary shipping on all U.S. orders over $150.

New, unopened products may be returned within 30 days of delivery. For questions and a prepaid return label, contact hello@deauskin.com.

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Offense–Defense Skincare™

Most high-performance skincare makes you choose: potency or gentleness, results or comfort. DEAU eliminates the tradeoff. Our formulas treat powerfully and protect deeply for long-term skin health.

Treat (Offense)
Powerful actives that visibly improve skin concerns.

Protect (Defense)
Soothing ingredients that strengthen and protect.

Two forces. One system.
Skin treated and protected simultaneously.

Intentional Japanese Botanicals

Each DEAU formula includes Japanese botanical extracts, carefully curated to reflect a formulation mindset rooted in balance, restraint, and respect for skin—principles central to Japanese skincare.

Intentional Japanese Botanicals

Real Results

Frequently Asked Questions

C³ Glow Veil is a complete vitamin C system. Additional vitamin C products are not necessary and may cause irritation.

Yes. Apply C³ Glow Veil first, let it absorb, then follow with retinol.

Yes. Fullerene helps neutralize free radicals generated by both UV and blue light exposure.

Most see visible improvement within 4–6 weeks of consistent use.

4.9
Rated 4.9 out of 5 stars
Based on 88 reviews
Total 5 star reviews: 81 Total 4 star reviews: 7 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
88 reviews
  • Priya V.
    Flag of United States
    Verified Buyer
    5 days ago
    Rated 5 out of 5 stars
    5 Stars

    postpartum dullness is real and nobody talks about it enough. my skin just looked grey and tired for months after having my baby. added this to my morning routine and within a month my skin looked like mine again. brighter, more even, less tired looking. simple addition that made a real difference

  • Claire N.
    Flag of United States
    Verified Buyer
    6 days ago
    Rated 5 out of 5 stars
    5 Stars

    Dry skin with dullness that got worse after I had kids and stopped sleeping. This vitamin C actually made a visible difference in how my skin looks in the morning, more awake, more even. I use it before my moisturizer and it layers fine. No flaking, no tightness. About six weeks in and I've repurchased already.

  • Yemi A.
    Flag of United States
    Verified Buyer
    6 days ago
    Rated 5 out of 5 stars
    5 Stars

    deeper skin tone here and vitamin C can be hit or miss for me. some cause more irritation, some just don't do enough. this one has been genuinely good. even tone, fading hyperpigmentation, no irritation after six weeks. my skin looks healthy in a way that I get compliments on now. that's new

  • Nina R.
    Flag of United States
    Verified Buyer
    2 weeks ago
    Rated 5 out of 5 stars
    5 Stars

    first vitamin C I've ever actually finished. usually I give up because they oxidize or break me out or just sit there doing nothing. this one did none of that. skin is brighter, marks are fading, no breakouts. I'm already on bottle two

  • Hannah W.
    Flag of United States
    Verified Buyer
    2 weeks ago
    Rated 5 out of 5 stars
    5 Stars

    three minute morning routine person. this goes on fast, dries down immediately, SPF on top and done. my skin looks so much brighter than it did before I added this. my boyfriend noticed before I said anything which is always the real sign that something is working

  • Amara J.
    Flag of United States
    Verified Buyer
    2 weeks ago
    Rated 5 out of 5 stars
    5 Stars

    Finding a vitamin C that works on deeper skin tones without causing more irritation or uneven results is harder than people think. This one has been genuinely good. My skin tone looks more even overall and the hyperpigmentation on my cheeks from old breakouts is fading. No irritation, no weird reaction. About 5 weeks in and I keep getting compliments on my skin which never happens.

  • Yuna P.
    Flag of United States
    Verified Buyer
    3 weeks ago
    Rated 5 out of 5 stars
    5 Stars

    Sensitive skin that does not get along with most actives. I patch tested this for five days before using it all over and had zero reaction which was already more than I expected. My skin has always hated L-ascorbic acid so finding a vitamin C without it was a big deal for me. Four weeks in and my skin tone looks more even and I have this kind of baseline glow that wasn't there before. Not irritated, not purging, just better skin. Rare for me.

  • Margot D.
    Flag of United States
    Verified Buyer
    3 weeks ago
    Rated 4 out of 5 stars
    4 Stars

    good vitamin C, genuinely. my skin is brighter and my tone is more even after six weeks. the only thing keeping this at four stars is the pump is a little inconsistent sometimes. the formula itself is great though. lightweight, fast absorbing, no smell, no oxidation. would recommend