A. Product Introduction

In Lab Medical Radiance Vitamin C 5% Serum represents a foundational pillar in the "Biological Revitalization" range. As a leading name in international clinical aesthetics, In Lab Medical has engineered this serum to address the physiological decline of skin vitality caused by "Urban Syndrome"—a combination of traffic pollution, cumulative UV radiation, and oxidative stress.

The formulation concept is rooted in Daily Dermal Defense. While high-concentration Vitamin C serums can often cause irritation for sensitive skin profiles, this 5% stabilized formula provides the perfect equilibrium between clinical potency and high-standard cutaneous tolerance. Positioned for both professional clinical use—as a finishing step in brightening protocols—and for intensive home-care maintenance, it targets complexions that have become sallow, devitalized, or exhibit early markers of environmental aging. It is the definitive choice for practitioners and patients seeking a homogenized, radiant complexion backed by European pharmaceutical standards.

B. Active Ingredients

The scientific superiority of the Radiance Serum is derived from its quantitative multi-pathway mechanism, utilizing ingredients that offer proven credibility in aesthetic science:

Pure Ascorbic Acid: The Biological Shield

At the heart of the formula is a 5% concentration of pure Ascorbic Acid. In the context of cosmetic chemistry, Vitamin C is unique because it works on multiple levels simultaneously.

1. Antioxidant Neutralization: It halts the oxidative chain reactions triggered by solar radiation, preventing DNA damage in keratinocytes.
2. Luminosity Regulation: By inhibiting the tyrosinase enzyme, it helps regulate the production of melanin, leading to a more unified skin tone and the reduction of superficial pigmentary discontinuities.

The Synergy of Grape and Cranberry Polyphenols

To enhance the efficacy of the Vitamin C, In Lab Medical utilizes a botanical complex of Vitis Vinifera and Vaccinium Macrocarpon.

• Vitis Vinifera: This extract is naturally rich in anthocyanins, which reinforce capillary walls and improve skin oxygenation.
• Vaccinium Macrocarpon: Often referred to as a "super-fruit," cranberry extract provides a high-standard source of tocotrienols, which work in tandem with Ascorbic Acid to prevent lipid peroxidation of the cell membranes.

Structural Homogenization with Lactic Acid

The inclusion of Lactic Acid serves a critical technical purpose. By lowering the formulation's pH, it ensures the Vitamin C remains stable and bioavailable. Simultaneously, its mild keratolytic action "re-textures" the skin surface, allowing the active antioxidants to reach the deeper layers of the stratum corneum more efficiently.

C. Indications

In Lab Medical Radiance Vitamin C 5% Serum is indicated for a wide spectrum of aesthetic and restorative applications:

• Dull and Sallow Complexions: Specifically formulated for skin lacking vitality, characterized by a greyish tone or "smoker’s skin."
• Photo-Aging and Oxidative Damage: Recommended for individuals seeking to prevent or correct the appearance of fine lines and initial wrinkles caused by UV exposure.
• Tone Homogenization: Ideal for patients seeking to unify the complexion and achieve a brighter, more homogenized aesthetic finish.
• Post-Procedural Recovery: This is a highly recommended repair step for patients who have undergone clinical brightening treatments (such as chemical peels or microneedling), as it sustains and enhances the professional "glow" results.
• Daily Environmental Defense: Acts as a biological defense for urban dwellers against particulate matter and digital pollution.

Application Protocol

This product is intended for daily topical use.

• Home Use: Apply 3–4 drops to the cleansed face, neck, and décolleté daily (ideally in the morning). Use gentle, upward circular movements until completely absorbed.
• Professional Context: Use as a finishing serum in antioxidant or anti-aging protocols to provide an immediate "flash" of luminosity.

D. Technical Specifications

• Formulation Type: High-absorption aqueous-based professional serum.
• Active Concentration: 5% Pure Ascorbic Acid (Vitamin C).
• Texture & Aspect: Translucent, lightweight fluid with rapid penetration and a non-greasy, velvety finish.
• Primary Packaging: 30 ml (1 fl.oz) white glass bottle with a precision dropper to protect the molecular stability of the Vitamin C from light-induced oxidation.
• Secondary Packaging: Supplied in a professional-standard white cardboard folding box.
• Storage & Conservation: Store at room temperature (<35 C). Keep in a cool, dry place away from direct sunlight and heat to ensure the stability of the active extracts.
• Shelf Life: 12 months after opening (12M PAO).