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  4. Serums & Treatments
(197)197

Vitamin C 35% & Glutathione Advanced Firm & Brighten Serum

ALLIES OF SKIN

$148.00Current Price $148.00
1.01 Ounce
1 person viewing now
Free returns anytime
Sold by Nordstrom
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Highlights

  • Vitamin C
  • Good for: Dark spots
  • Good for: Dullness

Details & care

What it is: An advanced firming and brightening formula supercharged with 25% ethylated L ascorbic-acid and 10% tetrahexyldecyl ascorbate for superior radiance, antioxidant protection and an improved appearance of fine lines and wrinkles.

Who it's for: Ideal for all skin types, including sensitive skin.

Key ingredients:
- 25% ethylated l-ascorbic acid: pure L-ascorbic acid in a highly stable, potent form that penetrates deep into skin to firm and brighten for a healthy, glowing complexion
- 10% tetrahexyldecyl ascorbate: a stable, oil-soluble form of vitamin C that helps plump fine lines, visibly improve dark spots and protect from free radicals
- Superoxide dismutase: a potent antioxidant that helps target photoaging, oxidative stress and reduces the concerns associated with exposure to free radicals. Leaves the skin looking clearer, firmer and more even

How to use: After cleansing and misting or toning, apply 1-3 pumps all over your face and neck. Follow up with yourfavouritemoisturiser or face oil. It can be used daily in the AM and/or PM and sits comfortably under makeup or without. Apply to very damp skin for optimal absorption. Shake well before every use. Always use SPF as the final step in your routine.

  • Paraben-free; phthalate-free; sulfate-free; silicone-free; denatured alcohol-free; synthetic dye-free; fragrance-free; essential oil-free
  • Dermatologist tested; ophthalmologist tested
  • Made in the USA
  • Item #11065526
  • Core Product ID 3333344LAC

Ingredients

Ethoxydiglycol, 3-O-Ethyl Ascorbic Acid, Tetrahexyldecyl Ascorbate, Dimethyl Isosorbide, Isodecyl Neopentanoate, Glutathione, Superoxide Dismutase, Ethylhexylglycerin, Caprylyl Glycol, Tocopherol, Phenoxyethanol.<br>Ingredients are subject to change at the manufacturer's discretion. For the most complete and up-to-date list of ingredients, refer to the product packaging.
Ingredients are subject to change at the manufacturer's discretion. For the most complete and up-to-date list of ingredients, refer to the product packaging

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Reviews

(197)1974.8 out of 5
Write a Review

Most helpful positive review

May 26, 2026

Visible results

Visible pigmentation decrease with this product. Skin is glowy after application with a smooth texture. Fantastic product.
ShannonB

Most helpful critical review

Sept 24, 2026

BAD REACTION

This is one of the worst serums I’ve ever tried. It caused an awful allergic reaction and lasted for several days and my skin was scaly. I’m an esthetician and I would never recommend this product to my clients. Vitamin C should never go higher than 20%.
Cmr05pink
Verified purchase
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5 stars86%
4 stars9%
3 stars2%
2 stars2%
1 star2%
Mar 17, 2026

Greasy, hard to dispense the right amount.

I’m not impressed by this vitamin c serum. It has a greasy texture that doesn’t absorb well, unless you apply it and wait a while for it to absorb. I haven’t changed any of my other serums and this product seems to pill. Like other customers have noted, the product leaks around the product dispenser. It’s also hard to dispense the product without too much coming out. I’ll give it some time, but so far I don’t see any change in my skin and I’ve been using it twice a day. My skin isn’t glowing. I tried the growth factors serum from this brand in the past and that did nothing despite the rave reviews.
Verified purchase
DogMom72
Size purchased:
1.01 oz
1found this helpful
Sept 24, 2026

BAD REACTION

This is one of the worst serums I’ve ever tried. It caused an awful allergic reaction and lasted for several days and my skin was scaly. I’m an esthetician and I would never recommend this product to my clients. Vitamin C should never go higher than 20%.
Verified purchase
Cmr05pink
Was this helpful?
Sept 16, 2026

Hurt my barrier

Verified purchase
Virginia Wran
Size purchased:
1.01 Ounce
Was this helpful?
May 26, 2026

Visible results

Visible pigmentation decrease with this product. Skin is glowy after application with a smooth texture. Fantastic product.
ShannonB
May 20, 2026

Effective but Not for Sensitive or Sun-Exposed Skin

Allies of Skin Vitamin C 35% &amp; Glutathione Advanced Firm &#43; Brighten Serum is a good product, but probably I think the Vitamin C 35% &amp; Glutathione Advanced Firm &#43; Brighten Serum is too strong for people with sensitive skin or for anyone who has recently had significant sun exposure. I experienced redness and a tingling/burning sensation after just two applications, so I decided to reduce usage to only once or twice a week. This is definitely not a gentle beginner Vitamin C serum. That said, the formula feels very potent and effective, so I can see it working well for people with more resilient skin.
Anonymous
Mar 21, 2026

Beautiful

[This review was collected as part of a promotion.] I have radiance and an even tone after just a few uses, super.
Marynaundefined
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