skinbetter science Alto Defense Serum | 19-Antioxidant Shield Serum

19 antioxidants. One serum. No compromises.

The skinbetter science Alto Defense Serum is not simply a Vitamin C serum with extras added. It is built around WEL Technology, skinbetter science's proprietary delivery system that deploys 19 antioxidant ingredients simultaneously, engineered to work together rather than compete or interfere with each other. The result is a comprehensive antioxidant shield that neutralises free radicals across multiple pathways simultaneously, protecting against UV damage, pollution, blue light and infrared radiation in a way that no single-active antioxidant serum can match.

This is the morning serum that makes everything else in your routine work harder and last longer.

Who is Alto Defense Serum best for?

• Anyone wanting the most comprehensive daily antioxidant protection available without a prescription
• Those wanting to protect and extend the results of aesthetic treatments and injectable procedures
• Those on GLP-1 medications whose skin is more vulnerable to oxidative stress during weight loss
• Post-procedure skin needing antioxidant protection during recovery
• Anyone whose skin shows signs of cumulative environmental damage: fine lines, dullness, uneven tone
• Those wanting to pair a morning antioxidant serum with AlphaRet Overnight Cream for a complete day and night protocol

Key ingredients and why they matter

• WEL Technology with 19 antioxidants: A proprietary delivery system that deploys a full spectrum of antioxidants simultaneously. Where most antioxidant serums rely on one or two actives, WEL Technology uses 19 working together to neutralise free radicals across multiple pathways
• THD Ascorbate (stable Vitamin C) and Tocopheryl Acetate (Vitamin E): Neutralise UVB-induced free radicals and support collagen synthesis in a stable, non-irritating form
• Polyphenol Superfood Complex (Acai, Turmeric, Cocoa, Green Tea, Grape Seed, Olive): Creates a broad botanical antioxidant shield against environmental free radical damage
• Radiance Blend (Coffee, Saffron, Superoxide Dismutase, Ergothioneine): Enhances skin vitality and luminosity alongside antioxidant protection
• Ceramide Blend and Hyaluronate: Support barrier function and moisture retention throughout daily use
• Bisabolol and Ginger Root Extract: A synergistic calming complex that reduces redness and sensitivity

What results can you expect?

Immediately brighter, calmer and more protected skin from the first application. With consistent daily morning use, most users notice progressively reduced redness, more even skin tone, improved radiance and meaningfully better skin quality over 8 to 12 weeks. The cumulative protection against environmental damage compounds over time.

How we use Alto Defense Serum at Face for Soul

As a pharmacist prescriber specialising in skin health, Alto Defense Serum is the morning antioxidant step I most consistently recommend for patients on any skinbetter science routine. The 19-antioxidant WEL Technology provides a level of environmental protection that single-active antioxidant serums simply cannot match, and it makes every other active in the routine more effective by protecting newly formed collagen and elastin from being immediately degraded by environmental stressors.

Build your skinbetter science morning routine

Alto Defense Serum is Step 1 of your skinbetter science morning routine. Apply it first to clean skin, then layer your skinbetter science treatment serum (Even Tone Correcting Serum or InterFuse Intensive Treatment LINES for targeted correction), then your skinbetter science moisturiser (Trio Rebalancing Moisture Treatment or Trio Luxe for intensive hydration) and finish with sunbetter SPF. In the evening, AlphaRet Overnight Cream is the natural complement to Alto Defense Serum, creating a complete day and night protocol.

Frequently Asked Questions

Why 19 antioxidants rather than just a high-dose Vitamin C?
Free radical damage occurs through multiple pathways simultaneously. A single antioxidant, however high its concentration, can only neutralise damage through one mechanism. The 19 antioxidants in WEL Technology address multiple pathways simultaneously, providing comprehensive protection that no single-active formula can replicate.

Is it suitable post-procedure?
Yes. Antioxidant protection is particularly valuable post-procedure when the skin is most vulnerable to environmental damage. Always follow your clinician's advice on when to restart actives after a specific procedure.

Is it suitable if I am on GLP-1 medication?
Yes. Oxidative stress increases during periods of significant body composition change. Daily antioxidant protection from Alto Defense Serum is particularly valuable for patients on GLP-1 medications.

Is skinbetter science cruelty-free?
Yes. skinbetter science does not test on animals.

Is it vegan?
Yes. Alto Defense Serum is formulated without animal-derived ingredients.

How to Use

Apply a thin layer to clean, dry skin on the face, neck and décolleté each morning before moisturiser and SPF.