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Alastin Skincare C-RADICAL Defense Antioxidant Serum 1 Oz

Sale price$288.00 AUD
BUY 1, GET THE SECOND ITEM 15% OFF $244.80

Most vitamin C serums make you choose between strength and tolerance. Alastin uses encapsulated sodium ascorbate rather than straight ascorbic acid, and claims 20 times more effective absorption from it. Around it sit 14 more antioxidants.

What is Alastin C-RADICAL Defense Antioxidant Serum?

Alastin C-RADICAL Defense is a vitamin C serum built on encapsulated sodium ascorbate with 14 additional antioxidants, formulated to defend skin against UV, blue light and pollution. Alastin reports up to 74% reduction in free radical effects. It targets dullness, discoloration, uneven texture and fine lines, applied one to two pumps morning and evening.

What C-RADICAL Defense does

Free radicals from sun, pollution and blue light break down the collagen and elastin already in the skin. Three ingredients carry the defence. Sodium ascorbate is the novel form of vitamin C. Green tea helps scavenge reactive oxygen species and supports the skin's own antioxidant enzymes. Physalis angulata is an anti-inflammatory that supports the skin's ability to repair collagen.

Alastin states that the serum stimulates collagen production and conserves elastin. The wording matters: it is protecting the elastin you have rather than making more of it.

C-RADICAL Defense specifications

Product type Vitamin C antioxidant serum
Form of vitamin C Sodium ascorbate, encapsulated
Other antioxidants 14, including ectoin, ubiquinone, carnosine, ergothioneine, green tea, pomegranate, ginger root
Defends against UV, blue light, pollution
Targets Dullness, discoloration, uneven texture, fine lines, redness
Skin types Most skin types, per Alastin
Scent Scent-free
Size 1 Oz (29.6 mL)
When to use Morning and evening, to the face

What Alastin's testing showed

Over eight weeks, Alastin reports a 71% reduction in uneven skin texture, a 69% reduction in redness and a 50% reduction in fine lines, with no participant count published alongside them. The serum has been named Best Vitamin C Serum by New Beauty in 2024 and 2025, and by the Shape Skin Awards in 2024.

Alastin C-RADICAL Defense reviews: what buyers report

  • It does not sting. Two buyers say so independently, one describing reactive skin and one a compromised barrier. Vitamin C has a reputation for burning, and Alastin's 69% redness figure is the brand-side match for what they describe.
  • Sun spots come up more than dullness. Two report facial sun spots looking lighter, ahead of the texture results the brand leads on.
  • Price, then a verdict. "Expensive, but you get what you pay for" is the recurring shape. Three of five raise the cost and none regret it.

Who C-RADICAL Defense suits

Anyone who wants the antioxidant step covered and has found other vitamin C serums too harsh. It pairs naturally with A-LUMINATE Brightening Serum if uneven tone is the main concern. It is the defensive step of an Alastin Skincare routine, worn under moisturizer and sunscreen.

Alastin Skincare C-RADICAL Defense Antioxidant Serum 1 Oz
Alastin Skincare C-RADICAL Defense Antioxidant Serum 1 Oz Sale price$288.00 AUD

Customer Reviews

Overall rating: 4.3 / 5 from 141 reviews.

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Very comfortable shoe, think I will wear it a lot this summer!

Amorina Black Sandals

Customer photo review of Jenny Navy Leather Loafer

Really nice shoes , well made , true as advertised. Very soft leather . They are a little narrow .

Jenny Navy Leather Loafer

My bag arrived in reasonable time - under 2 weeks from UK to USA - as expected. The bag is beautifully understated with soft leather, a lovely smooth strap that will not snag delicate knits but wide enough to feel comfortable on the shoulder even when carrying a heavy tablet and a smooth running zipper. It is carefully finished - no loose threads or crooked stitching and was exceedingly well packaged so there are no creases or scratches. The price was exceptionally good, especially as it included shipping and tax. I will recommend and consider buying from this site in the future.

Ecotorie - Dora Black Crossbody

These pants are great ! I have had a pair for 6 years and they are still great!

The Kate Skinny Cargo Pant

The pants are exactly what I wanted, fit perfectly and arrived quickly!

The Kate Skinny Cargo Pant

07/13/26 Seashell Handbag Hello, The bag itself is nice. However the ball of straw at the top makes it difficult to wrap the loop around it. The clasp needs to have a smooth surface or use a smooth metal clasp or a large faux pearl (like on other identical bags) or with a strong magnet or a clasp used on many top closure bags. I tried to push down the straw ball so it's easier to close. Tell your supplier about this issue.

Jelavu - Shelie Bamboo Crossbody Bag

The bag smells so horrible of toxic moth balls, I couldn’t even bring it in my house. My whole head hurt as soon as I opened it, and I had to wash my hands after touching it. It has been sitting outside for 24 hours and the smell is just as strong. I need a new one that doesn’t smell Iike this.

Jelavu - Sidney Black Medium Satchel Bag

These are well-made and very comfortable - was delighted when they arrived! The foot shape is very elegant (not too wide) which I think is not represented optimally in photo. More colors please!

Jelavu - Glimmr Dark Brown Sandal

Love this new bag. It has tons of room and a cute smaller bag inside. I love that it’s in neutral colors and compliments everything!

Ecotorie - Springhill - Tote Bag

These shoes were improperly size ranged. I am between a snug 6-1/2 and 7-ish depending on the shoe. I was too intimidated to order the smaller size seeing the 6– to 6-1/2 which 6 I am definitely not. So these 38’s are so huge I’ve inserted TWO inserts, and TWO Heel gels for each shoe and they are still hopelessly unwearable. I’m absolutely distraught. If you send me the smaller size I’m going to try to return these if you tell me how. Please send me the smaller pair.

Saint G - The Cosima - Black Pumps

I purchased it for my mother in law and liked it so much I I bought one for myself!

Jelavu Aspen Black Tote Bag