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

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. 

[ 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.

[ 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. 

[ 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.

[ 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.

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.

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EWG Verified logo with text 'For Your Health' and website 'EWG.org'.
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$89 $89 0% savings
Size
Benefits
  • Brightness
  • Radiance
  • Firmness
  • Renewal
MORE DETAILS
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 446 reviews
    Rating
    Ratings
    Your skin type:
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    Your skin concerns:
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    446 reviews
    • Sheena D. R.
      Verified Buyer
      I recommend this product
      Age 35-44
      Your skin type: Combination
      Your skin concerns: Fine Lines & Wrinkles, Dullness, Uneven Skin Tone
      How long have you used the product? About a month
      Rated 5 out of 5 stars
      9/15/26
      The best serum

      Not only does it smell amazing, it makes my skin feel so soft and glowing! And has also helped my skin discoloration fade

    • Kim V.
      Verified Buyer
      I recommend this product
      Age 65+
      Your skin type: Combination
      Your skin concerns: Dullness, Fine Lines & Wrinkles, Uneven Skin Tone
      How long have you used the product? Over a month
      Rated 5 out of 5 stars
      9/13/26
      My Favorite Product

      I love-love-love the Vitamin C Serum. I've been using it every morning since it first came out and think it's the best Vitamin C Serum I've ever used. I love how it goes on and how my skin feels after using it. Highly recommend to anyone wanting to start a skin care routine or wanting to enhance their current routine. It's a staple product for me!

    • Leslie B.
      Verified Buyer
      I recommend this product
      Age 65+
      Your skin type: Sensitive
      Your skin concerns: Dullness, Fine Lines & Wrinkles, Uneven Skin Tone
      How long have you used the product? Over a month
      Rated 5 out of 5 stars
      9/12/26
      Love it

      Can;t live without it.

    • Beth B.
      Verified Buyer
      I recommend this product
      Age 65+
      Your skin type: Dry, Sensitive
      Your skin concerns: Fine Lines & Wrinkles, Dryness
      Rated 5 out of 5 stars
      9/5/26
      The Best

      The best bit c that I’ve used.

    • Kelly S.
      Verified Buyer
      I recommend this product
      Age 65+
      Your skin type: Combination, Sensitive
      Your skin concerns: Dryness, Fine Lines & Wrinkles
      How long have you used the product? About a month
      Rated 5 out of 5 stars
      9/5/26
      All Bright Vitamin C serum

      Purchased separately to trial, I found this serum to be my favorite. I cleanse nightly with Counterglow Silky Skin Cleanser, apply some Countertime Mineral Boost Hydrating essence and follow up with Counter All Bright Vitamin C Serum. My face feels amazing after this regimen.