SkinCeuticals
SkinCeuticals Serum 10 AOX+ — Gentle, High Potency Vitamin C Protection for Bright, Youthful, Sensitive Skin
SkinCeuticals Serum 10 AOX+ — Gentle, High Potency Vitamin C Protection for Bright, Youthful, Sensitive Skin
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Product Overview
SkinCeuticals Serum 10 AOX+ is a dermatologist-developed antioxidant serum designed for patients who are new to vitamin C therapy or who present with sensitive, reactive, or post-procedure skin. The formulation contains 10% pure L-ascorbic acid — the only form of vitamin C demonstrated to penetrate the stratum corneum effectively — combined with 0.2% ferulic acid, a plant-derived polyphenol that doubles the photoprotective efficacy of vitamins C and E while simultaneously stabilising the formula against oxidation. The serum conforms to the Duke Antioxidant patent parameters: pure L-ascorbic acid at a bioavailable concentration (10–20%) in an aqueous, low-pH vehicle (pH 2.0–3.5).
In a clinical context, Serum 10 AOX+ is particularly suited to post-laser, post-peel, and post-resurfacing patients, as well as individuals with rosacea-prone or atopic skin who require antioxidant support but cannot tolerate higher-concentration C E Ferulic-strength formulations. Applied topically each morning prior to sunscreen, the serum builds antioxidant capacity in the epidermis and upper dermis, complementing broad-spectrum UV protection. Sodium hyaluronate in the base provides additional hydration support, making the formula suitable for concurrent use with active retinoid or exfoliant regimens prescribed by dermatologists and aesthetic physicians in Singapore.
Formulation Specifications
| Manufacturer | SkinCeuticals (L'Oréal Dermatological Beauty) |
| Primary Active — L-Ascorbic Acid | 10% (pure, bioavailable form) |
| Secondary Active — Ferulic Acid | 0.2% |
| Formulation pH | 2.0–3.5 (Duke Antioxidant patent range) |
| Other Key Ingredients | Sodium Hyaluronate, Panthenol (Provitamin B5), Zinc Sulfate |
| Format | Aqueous serum, 30 mL |
| Shelf Stability | 36 months sealed; 6 months after opening |
| Patent Basis | Duke Antioxidant patent (Duke University, Dr Pinnell research) |
| Regulatory / Distribution | Cosmetic; HSA-compliant. Sold exclusively via authorised medical aesthetic channels including EMIS Singapore. |
Clinical Indications
- Post-procedure antioxidant loading: Applied from day 2–3 post laser, IPL, chemical peel, or microneedling to reduce oxidative stress-driven inflammation without irritating compromised barriers.
- Sensitive and rosacea-prone skin: Provides antioxidant protection at a concentration tolerated by individuals who experience erythema or stinging with 15–20% L-ascorbic acid serums.
- Vitamin C introduction protocol: Used as a stepping-stone before transitioning to C E Ferulic (15% L-ascorbic acid) in skin-conditioning protocols prescribed by dermatologists.
- Daily photoprotection adjunct: Applied each morning under SPF 30+ sunscreen to augment UV-induced free radical neutralisation; ferulic acid doubles photoprotective efficacy compared with vitamins C and E alone.
- Post-acne hyperpigmentation: Vitamin C competitively inhibits tyrosinase, the rate-limiting enzyme in melanin synthesis, reducing PIH appearance over 8–12 weeks of daily use.
- Combination with retinoids: Morning antioxidant serum pairs with evening retinol protocols at Singapore dermatology clinics, providing daytime collagen-protective benefit.
Frequently Asked Questions
Q: How does Serum 10 AOX+ differ from C E Ferulic?
A: Serum 10 AOX+ contains 10% L-ascorbic acid whereas C E Ferulic contains 15% L-ascorbic acid, 1% alpha tocopherol, and 0.5% ferulic acid. The lower-concentration formulation is clinically appropriate for sensitive, reactive, rosacea-prone, or post-procedure skin. Dermatologists typically initiate patients on Serum 10 AOX+ and upgrade to C E Ferulic once tolerability is confirmed.
Q: Why is the low pH (2.0–3.5) necessary for vitamin C serum efficacy?
A: L-ascorbic acid requires an acidic vehicle for effective stratum corneum penetration. Published research forming the basis of the Duke Antioxidant patent (Pinnell et al., 2001, Dermatologic Surgery) demonstrates optimal skin levels at the correct pH range. Formulations at higher pH using vitamin C derivatives offer substantially lower bioavailability and clinical evidence.
Q: Can Serum 10 AOX+ be used with prescription retinoids or hydroquinone?
A: Yes. The serum is applied each morning and retinoids or hydroquinone are applied at night. SkinCeuticals' published protocols support concurrent use; patients on prescription-strength actives should confirm sequencing with their prescribing dermatologist or aesthetic physician.
Q: Is this suitable for use after laser or chemical peel treatments in Singapore clinics?
A: Serum 10 AOX+ is appropriate for post-procedure skin once active wound healing is complete (typically day 2–5). Its tolerability profile supports earlier reintroduction compared with higher-strength serums. Clinicians should advise patients to patch-test first and consult their doctor if unusual sensitivity persists beyond 48 hours.
Q: Where is SkinCeuticals Serum 10 AOX+ available in Singapore?
A: Distributed exclusively through authorised medical aesthetic clinics and medical supply partners such as EMIS (Essential Medical International Supplies Pte Ltd). Not available in general pharmacies or consumer beauty retail channels.
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