SkinCeuticals Serum 10 AOX+

$130.00

A gentle vitamin C serum formulated with 10% pure L-ascorbic acid and 0.2% ferulic acid to provide antioxidant protection while improving radiance and fine lines — ideal for sensitive or first-time vitamin C users.

This is your “starter vitamin C” — but it still performs.

We love it for sensitive clients or anyone who’s hesitant about jumping into a 15% formula. It gives you glow and protection with a lighter touch. If you’ve struggled with stronger vitamin C serums in the past, this is where we begin.

Think gentle protection, steady brightness, and healthy skin momentum.

If you’re new to vitamin C or have sensitive skin, SkinCeuticals Serum 10 AOX+ is the perfect introduction. This lightweight antioxidant serum is formulated with 10% pure L-ascorbic acid to help neutralize free radicals and defend against environmental damage.

Enhanced with 0.2% ferulic acid, this formula helps stabilize vitamin C while supporting improved radiance and smoother texture. With consistent use, skin appears brighter, clearer, and more refined — without the intensity of higher-strength formulations.

Ideal for sensitive, normal, or reactive skin types, Serum 10 AOX+ delivers daily antioxidant protection while helping improve the look of fine lines and uneven tone.

• Use in the morning on clean, dry skin
• Apply 4–5 drops to face, neck, and chest
• Follow with moisturizer and SPF
• Allow to fully absorb before layering

Pro Tip: If transitioning to a stronger vitamin C later, finish your bottle before upgrading to maintain skin tolerance.

10% L-Ascorbic Acid – Provides antioxidant protection and brightening
0.2% Ferulic Acid – Enhances stability and antioxidant performance
Antioxidant Complex – Helps defend against environmental stressors
Lightweight Base – Ideal for sensitive and reactive skin

Full Ingredient List

Aqua/Water, Ethoxydiglycol, Ascorbic Acid (10%), Glycerin, Propylene Glycol, Laureth-23, Ferulic Acid (0.2%), Phenoxyethanol, Panthenol, Triethanolamine.

Frequently Asked Questions

SkinCeuticals Serum 10 AOX+ is a gentle vitamin C serum designed to provide antioxidant protection, improve skin radiance, and reduce the appearance of fine lines. It contains 10% pure L-ascorbic acid, a proven form of vitamin C, and 0.2% ferulic acid to stabilize and boost antioxidant activity. Those ingredients work together to neutralize free radicals from UV exposure and pollution, helping to protect collagen and even skin tone over time. This product is best for people who want daytime antioxidant defense and brighter-looking skin but prefer a lower concentration of vitamin C because of sensitivity or first-time use. For stronger clinical correction of deeper lines, higher-concentration vitamin C serums may be more appropriate.
AOX serum delivers targeted antioxidant protection to neutralize free radicals that drive photoaging and oxidative damage. Most AOX serums combine active antioxidants like vitamin C with stabilizers such as ferulic acid to increase potency and photostability, which supports visible improvements in radiance and fine lines. Antioxidants also support barrier health by reducing oxidative stress that can accelerate collagen breakdown. AOX serums are especially useful for people exposed to daily pollution or sun, those noticing early signs of aging, and anyone seeking daytime protection to complement sunscreen. Note that antioxidants help reduce oxidative damage but are not a replacement for broad spectrum SPF.
Yes. SkinCeuticals Serum 10 AOX+ is formulated with a lower 10% concentration of L-ascorbic acid specifically to be gentler on sensitive skin and for first-time vitamin C users. The inclusion of 0.2% ferulic acid enhances antioxidant stability without requiring higher, more irritating vitamin C levels, which reduces the chance of sensitivity-related reactions. People with combination, dry, normal, or mild sensitivity will often tolerate this formula better than higher-strength vitamin C serums. However, individuals with very reactive or compromised skin should patch test first and introduce the serum gradually, and consult a dermatologist if they experience persistent irritation.
Use Serum 10 AOX+ in the morning after cleansing and before moisturizer and sunscreen to maximize daytime antioxidant protection. Apply a small amount to dry skin, allow it to absorb fully, then follow with your hydrator and a broad spectrum SPF, since antioxidants work synergistically with sunscreen to reduce oxidative stress. If you are new to vitamin C, start every other day and increase to daily use as tolerated. If you use strong exfoliants or professional treatments, monitor skin response and space applications to minimize irritation. For combined actives like retinol, consider using retinol at night and vitamin C in the morning.
Yes, but use caution because combining potent actives can increase irritation. The safest approach is to apply Serum 10 AOX+ in the morning for antioxidant protection and use retinol at night, which separates their peak activity periods and lowers the risk of sensitivity. If you prefer to use both in the same routine, introduce them slowly, start on alternate days, and monitor for redness or dryness. Pairing with soothing, barrier-supportive products such as ceramide or niacinamide-containing moisturizers can improve tolerance. People with very reactive skin or those undergoing professional treatments should consult a clinician before combining multiple prescription-strength or high-potency actives.