C-RADICAL Defense Antioxidant Serum

Multi-Award Winning Vitamin C Serum
A clinically-proven antioxidant serum formulated with a novel form of Vitamin C plus 14 vital antioxidants that help protect against environmental stressors while helping to conserve elastin.* Read full benefits

 

Size: 1.0 Fl. Oz. 29.6 mL

$218
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Benefits of C-RADICAL Defense

Benefits of C-RADICAL Defense

  • Formulated with a proprietary encapsulated novel form of Vitamin C (Sodium Ascorbate), which helps to defend against free radical damage while supporting the skin's ability to conserve elastin*.
  • Proven to help reduce the effects of free radicals in the skin by up to 74%*.
  • Helps brighten skin and reduce the appearance of fine lines, wrinkles, photodamage, and other signs of aging.
  • Works to help refine skin texture and reduce the appearance of redness and brown spots.
  • 15 proven antioxidants to help neutralize free radicals, protect against UV damage and other environmental stressors such as blue light and pollution.
  • Known to support the skin’s ability to stimulate collagen production, the main protein that provides support to the skin's structure and helps prevent sagging or wrinkling.
  • Ideal for most skin types.
  • Winner of New Beauty 2024 and 2025 "Best Vitamin C Serum" and 2024 Shape Skin Awards "Best Vitamin C Serum"
  • See why C-RADICAL Defense is a game changer for skin.


  • Non-Tacky
  • Non-Irritating
  • Scent-Free
  • Luxurious, Stable Formula

Key Ingredients

Sodium Ascorbate icon Sodium Ascorbate A novel form of vitamin C in an encapsulated delivery system: shown to have remarkable stability and absorbs 20x more effectively*.
Green Tea icon Green Tea Helps to scavenge reactive oxygen species (ROS) and helps to up-regulate antioxidant enzymes.
Physalis Angulata icon Physalis Angulata An anti-inflammatory that supports the skin’s ability to repair collagen and helps to enhance the combat against free radicals.

Visibly Improved Appearance of Facial Redness, Hyperpigmentation and Radiance

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Female age 46 ALASTIN Skincare® Regimen: C-Radical Defense Antioxidant Serum, gentle cleanser, Ultra Light Moisturizer, HydraTint SPF 36 Sunscreen and/or SilkSHIELD® SPF 30 Sunscreen; all products used twice daily with option to reapply moisturizer and sunscreen as needed. Imaging Equipment: VISIA Skin Analysis (Canfield Scientific Inc., Parsippany, NJ). Reference: Data on file at ALASTIN Skincare®. Individual results may vary. Photographs are unretouched. Photos courtesy of Dr. Moradi.

Visibly Improved Appearance of Texture, Tone and Radiance

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Female, age 56 ALASTIN Skincare® Regimen: C-Radical Defense Antioxidant Serum, gentle cleanser, Ultra Light Moisturizer, HydraTint SPF 36 Sunscreen and/or SilkSHIELD® SPF 30 Sunscreen; all products used twice daily with option to reapply moisturizer and sunscreen as needed.  Imaging Equipment: VISIA Skin Analysis (Canfield Scientific Inc., Parsippany, NJ). Reference: Data on file at ALASTIN Skincare®. Individual results may vary. Photographs are unretouched. Photos courtesy of Dr. Moradi.

Clinical Results

In a Clinical Study, C-RADICAL showed the following in as early as 8 weeks

Up to

71%
Reduction in the appearance of uneven skin texture.*
69%
Reduction in the appearance of redness.*
50%
Reduction in the appearance of fine lines*

How to Use C-RADICAL

How to Use C-RADICAL

  • In the morning and evening after cleansing, apply 1-2 pumps of serum to the face.
  • Avoid getting in the eyes. If contact occurs, rinse thoroughly with water.

Frequently Asked Questions

ALASTIN Skincare® headquarters’ is located in North San Diego County in Carlsbad, CA

Address: 3129 Tiger Run Court #109, Carlsbad, CA 92010

Customer Service availability:
Monday – Friday, 8:00 am – 5:00 pm PST
Call: 844-858-7546

Or, submit your question here.

ALASTIN products can be purchased through an authorized skincare professional. By using the physician finder located on the home page of our website, you can search for a provider closest to you. Click here to begin a search.

Only Sunscreens are required by the FDA to list expiration dates.  ALASTIN Skincare manufactures small batches of products to ensure inventory moves quickly and is fresh. For that reason we recommend that you use them within two years of receiving the product and opening it.

You can order on our website if you are unable to find a physician provider near you. If you have any questions about the products, contact our customer service by phone at 844-858-7546 or click here to email our Customer Service team.

No, Alastin Skincare is not affiliated with the Allē program.  We encourage all Alastin Skincare purchases be made directly through your Physician or at Alastin.com. Please reach out to your Physician and/or Allē Customer Support to have the points applied for your Alastin purchase.

Customer Reviews

*Data on file at ALASTIN Skincare®. Individual results may vary.