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FIVE reasons why WOMEN IN THEIR 40'S
ARE SWITCHING TO
THIS VITAMIN C

4.9 ★ · 404 reviews

Every complaint about vitamin C—solved.

[ 1 ] It Doesn't Sting. At All. 

Traditional vitamin C is acidic by design—that's why it burns, flushes, and sends people back to the shelf. We use two ultra-stable derivatives that, together, allow for optimized delivery without harshness often associated with traditional Vitamin C serums. In a study of over 100 people - many with sensitive skin - there were no instances of irritation.*

*Based on a 105-subject Repeated Insult Patch Test. 

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Close-up of the silky, golden serum texture

[ 2 ] It won't turn brown on your shelf 

Most vitamin C oxidizes — it goes from bright to brown, and the potency goes with it. Ours is built around stability from the first ingredient decision, not patched on at the end. It stays yellow. It stays working.

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Instant glow and real results. Just incredible the noticeable change in a short time. You must have this in your routine! Best Vitamin C serum out there.

Shannon S.

I love the smell, consistency & results.

Dawn P.

I have tried them all…and this one is simply the best. ❤️

Kelly S.

The serum I didn’t know I needed! I love it!!!

Laura E.
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Bestseller
All Bright Vitamin C Serum in a gray pump bottle, 30 ml
Woman with glowing skin touching her temple in sunlight. Text: The vitamin C serum that gives you your glow back.
Bottle wrapped in golden serum. 97% said skin looks less dull; 94% said brighter and renewed, in a consumer study.
Forehead before and after 8 weeks of use, with dark spots visibly faded. Reduces the appearance of dark spots.
Orange slice, turmeric root and camu camu berries. Key ingredients: vitamin C, turmeric root and camu camu fruit extracts.
Golden serum droplets showing two stable forms of vitamin C: water-soluble and oil-soluble.
Close-up of the silky, golden serum texture
Routine: 1 Cleanse with Silky Skin Cleanser, 2 Prep with Mineral Boost Essence, 3 Treat with this serum, 4 Protect with Adaptive Moisture Lotion
Serum guide: All Bright Vitamin C to brighten (AM), Tri-luronic to hydrate (AM/PM), Retinatural+ to refine (PM)
The Standard, Counter's Real Clean: we ban 3,000+ questionable ingredients on The Never List and review every ingredient for safety
All Bright Vitamin C Serum in a gray pump bottle, 30 ml
Woman with glowing skin touching her temple in sunlight. Text: The vitamin C serum that gives you your glow back.
Bottle wrapped in golden serum. 97% said skin looks less dull; 94% said brighter and renewed, in a consumer study.
Forehead before and after 8 weeks of use, with dark spots visibly faded. Reduces the appearance of dark spots.
Orange slice, turmeric root and camu camu berries. Key ingredients: vitamin C, turmeric root and camu camu fruit extracts.
Golden serum droplets showing two stable forms of vitamin C: water-soluble and oil-soluble.
Close-up of the silky, golden serum texture
Routine: 1 Cleanse with Silky Skin Cleanser, 2 Prep with Mineral Boost Essence, 3 Treat with this serum, 4 Protect with Adaptive Moisture Lotion
Serum guide: All Bright Vitamin C to brighten (AM), Tri-luronic to hydrate (AM/PM), Retinatural+ to refine (PM)
The Standard, Counter's Real Clean: we ban 3,000+ questionable ingredients on The Never List and review every ingredient for safety

All Bright Vitamin C Serum

Formulated with two ultra-stable forms of vitamin C, this high-performance serum helps visibly boost radiance, reduce the appearance of dark spots, and support smoother, firmer-looking skin over time. Antioxidant-rich ingredients help defend against drying environmental stressors, leaving skin looking fresh, luminous, and revitalized.

logo of a leaping bunny
Logo of a black v inside a circle outlined in black on a white background.

Learn about our certifications

$89
Size
Benefits
  • Brightness
  • Radiance
  • Firmness
  • Renewal
MORE DETAILS

[ 3 ] 97% Saw Brighter, More Luminous Skin 

In an eight-week study: 97% said their skin's radiance was visibly improved. 97% said it looked firmer. 97% said brighter and more luminous. At the four-week mark, 100% already said skin felt supple and smooth. 

Based on a 33-subject consumer perception study. 

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[ 4 ] It Has Added Antioxidants

Antioxidant-rich ingredients, Turmeric and Camu Camu, enhance visible luminosity, helping skin appear more even, energized, and awake. And, throughout the day, antioxidant support helps defend against environmental stressors that can dull tone and accelerate visible aging.

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[ 5 ] Clean Wasn't a Compromise Here

EWG Verified. Vegan. Leaping Bunny certified. No "fragrance" hiding a list of undisclosed ingredients—we publish every one. Clean and clinical usually means picking one. We didn't.

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Bestseller
All Bright Vitamin C Serum in a gray pump bottle, 30 ml
Woman with glowing skin touching her temple in sunlight. Text: The vitamin C serum that gives you your glow back.
Bottle wrapped in golden serum. 97% said skin looks less dull; 94% said brighter and renewed, in a consumer study.
Forehead before and after 8 weeks of use, with dark spots visibly faded. Reduces the appearance of dark spots.
Orange slice, turmeric root and camu camu berries. Key ingredients: vitamin C, turmeric root and camu camu fruit extracts.
Golden serum droplets showing two stable forms of vitamin C: water-soluble and oil-soluble.
Close-up of the silky, golden serum texture
Routine: 1 Cleanse with Silky Skin Cleanser, 2 Prep with Mineral Boost Essence, 3 Treat with this serum, 4 Protect with Adaptive Moisture Lotion
Serum guide: All Bright Vitamin C to brighten (AM), Tri-luronic to hydrate (AM/PM), Retinatural+ to refine (PM)
The Standard, Counter's Real Clean: we ban 3,000+ questionable ingredients on The Never List and review every ingredient for safety
All Bright Vitamin C Serum in a gray pump bottle, 30 ml
Woman with glowing skin touching her temple in sunlight. Text: The vitamin C serum that gives you your glow back.
Bottle wrapped in golden serum. 97% said skin looks less dull; 94% said brighter and renewed, in a consumer study.
Forehead before and after 8 weeks of use, with dark spots visibly faded. Reduces the appearance of dark spots.
Orange slice, turmeric root and camu camu berries. Key ingredients: vitamin C, turmeric root and camu camu fruit extracts.
Golden serum droplets showing two stable forms of vitamin C: water-soluble and oil-soluble.
Close-up of the silky, golden serum texture
Routine: 1 Cleanse with Silky Skin Cleanser, 2 Prep with Mineral Boost Essence, 3 Treat with this serum, 4 Protect with Adaptive Moisture Lotion
Serum guide: All Bright Vitamin C to brighten (AM), Tri-luronic to hydrate (AM/PM), Retinatural+ to refine (PM)
The Standard, Counter's Real Clean: we ban 3,000+ questionable ingredients on The Never List and review every ingredient for safety

All Bright Vitamin C Serum

Formulated with two ultra-stable forms of vitamin C, this high-performance serum helps visibly boost radiance, reduce the appearance of dark spots, and support smoother, firmer-looking skin over time. Antioxidant-rich ingredients help defend against drying environmental stressors, leaving skin looking fresh, luminous, and revitalized.

logo of a leaping bunny
Logo of a black v inside a circle outlined in black on a white background.

Learn about our certifications

$89
Size
Benefits
  • Brightness
  • Radiance
  • Firmness
  • Renewal
MORE DETAILS

Lives up to the hype, first vitamin c serum that I have noticed a a difference in skin texture and brightness. Also love the smell and texture. Will definitely purchase again.

Theresa M.

I've tried other Vitamin C serums but none come close to feel and performance of this one.

Natalie K.

Instant glow and real results. Just incredible the noticeable change in a short time. You must have this in your routine! Best Vitamin C serum out there.

Shannon S.
Read more reviews
FOUNDER AND CEO, GREGG RENFREW

Brightness turned into a race—higher percentages, lower pH, louder claims. We didn't want to win that race. We wanted to make one that still works in month six.

    FAQs

    4.9
    Rated 4.9 out of 5 stars
    Based on 471 reviews
    Reviews Summary
    Customers say this serum feels lightweight and silky, absorbs well, and leaves skin with a noticeable glow. Many appreciate the pleasant citrus scent and find it works well for sensitive skin. The serum is frequently praised for its brightening effect and smooth texture, with long-time users noting visible results over time. Most reviewers enjoy it as a daily staple. A few mention the texture feels heavier than expected or note stickiness when layered with moisturizer, and one user experienced irritation near the eyes.
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    471 reviews
    • Cathy H.
      Verified Buyer
      I recommend this product
      Age 55-64
      Your skin type: Dry, Sensitive
      Your skin concerns: Fine Lines & Wrinkles, Dullness
      How long have you used the product? Over a month
      Rated 5 out of 5 stars
      11/9/26
      Love this serum!

      I use it each morning and love the feel and brightness it gives to my complexion.

      Was this helpful?
    • Susanna M.
      Verified Buyer
      I recommend this product
      Age 65+
      Your skin type: Normal
      Your skin concerns: Fine Lines & Wrinkles
      How long have you used the product? Over a month
      Rated 5 out of 5 stars
      11/8/26
      Vitamin C serum

      Have used it over the years & really like it.

      Was this helpful?
    • Denise R.
      Verified Buyer
      I recommend this product
      Age 35-44
      Your skin type: Normal
      Your skin concerns: Dryness, Dullness, Uneven Skin Tone
      How long have you used the product? Over a month
      Rated 5 out of 5 stars
      11/5/26
      Best daily use serum

      I use this daily and have emptied multiple bottles. That is always the sign of a great product. This product is hydrating without feeling greasy and improves the appearance and feel of skin on the first use which only improves over time.

      Was this helpful?
    • Hilary N.
      Verified Buyer
      I recommend this product
      Age 35-44
      Your skin type: Normal
      Your skin concerns: Fine Lines & Wrinkles
      How long have you used the product? Over a month
      Rated 5 out of 5 stars
      11/3/26
      Daily Vitamin C is a Must!

      Hands down my favorite product from Counter!

      Incentivized review
      Was this helpful?
    • Liz K.
      Verified Buyer
      I recommend this product
      Age 35-44
      Your skin type: Dry, Sensitive
      Your skin concerns: Redness, Fine Lines & Wrinkles, Dryness, Uneven Skin Tone
      How long have you used the product? Over a month
      Rated 5 out of 5 stars
      11/2/26
      Finally!

      Just what I was looking for! Finally a vitamin c serum that doesn’t bother my sensitive skin, absorbs perfectly, brightens, and helps minimize the appearance of sun spots. Favorite step in my morning routine!

      Incentivized review
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    Show More

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