Alastin - C-Radical Defence Antioxidant Serum

Advanced vitamin C defence for brighter, smoother-looking skin

ALASTIN C-RADICAL Defense Antioxidant Serum combines encapsulated sodium ascorbate with 14 additional antioxidants to target dullness, uneven skin tone, fine lines and visible environmental ageing. Its approach brings together daily antioxidant defence with support for the collagen and elastin that contribute to skin’s structure and resilience.

The scent-free, non-tacky formula offers a sophisticated vitamin C step for morning and evening use, with clinical research evaluating the finished serum rather than vitamin C alone.

Key benefits

• Brighter-looking skin: helps improve radiance and the appearance of uneven pigmentation.
• Smoother texture: targets visible roughness and fine lines.
• More even-looking tone: helps reduce the appearance of redness and brown spots.
• Antioxidant defence: combines 15 antioxidants to address free-radical stress.
• Elastin-focused formulation: developed to support elastin conservation alongside collagen support.

What makes its vitamin C technology different?

C-RADICAL uses sodium ascorbate, a vitamin C salt, within a phosphatidylcholine liposome delivery system. Encapsulation helps protect the ingredient and supports its delivery into the skin. The protective pump packaging also limits light exposure to the formula.

This makes the formulation more than a comparison of vitamin C percentages: the delivery system, supporting antioxidants and finished-product evidence are central to its design.

Clinical results

A published multicentre study evaluated twice-daily use over 12 weeks in 36 adults aged 38–69 with facial photodamage. Participants also used a supporting cleanser, moisturiser and sunscreen regimen.

• 83% reported healthier-looking skin and a more even-looking skin tone at week 12.
• 75% reported improved texture, increased radiance and clarity, and brighter-looking skin.
• 100% reported overall satisfaction at weeks 8 and 12.

Investigators recorded significant improvements across the assessed signs of photodamage. Biopsies from five participants also showed increased elastin fibres after treatment.

This was an open-label, manufacturer-supported study without a separate control group. Percentages above describe participant responses, not percentage reductions in wrinkles or pigmentation. Individual results vary.

Key ingredients

• Encapsulated sodium ascorbate: the formula’s vitamin C component.
• Lactoferrin: included for its role in addressing iron-associated oxidative stress.
• Ectoin: supports defence against environmental stress.
• Carnosine, pomegranate and Physalis angulata: contribute to the wider antioxidant formulation.
• Green tea: provides additional antioxidant support.

How to use

1. Cleanse the skin.
2. Apply 1–2 pumps to the face morning and evening.
3. Follow with moisturiser as needed and sunscreen in the morning.

Avoid contact with the eyes. If contact occurs, rinse thoroughly with water.

Frequently asked questions

What type of vitamin C does C-RADICAL contain?

It contains sodium ascorbate in an encapsulated delivery system, supported by a broader antioxidant blend.

What percentage of vitamin C is in it?

ALASTIN does not state a vitamin C percentage on its official product page. Its published performance evidence evaluates the complete formulation.

Can I use it with retinol?

ALASTIN includes C-RADICAL and retinol within its suggested evening regimen. Introduce products according to your skin’s tolerance and follow any personalised advice from your skincare professional.

Does it replace sunscreen?

No. Antioxidant skincare and sunscreen serve complementary roles. Continue using broad-spectrum sun protection.

When should I assess results?

The published study assessed results over 12 weeks. Consistent use and photographs taken under the same lighting can help you judge changes in tone, texture and radiance.

Clinical reference: Moradi A et al. Multicenter evaluation of a topical antioxidant serum. Journal of Cosmetic Dermatology. 2024;23:145–153.