Vitamine C pure stabilisée par Alphascience
L-ascorbic acid is pure Vitamin C in its most biologically active form. It is the only form your skin cells directly recognize and use. Backed by over 50 years of peer-reviewed research, it is the most clinically validated active ingredient in modern skincare, with demonstrated efficacy across three distinct mechanisms: antioxidant protection, collagen biosynthesis, and melanin regulation.
Vitamin C: The skin's natural shield against oxidative stress
Young skin naturally contains high concentrations of L-ascorbic acid — but these levels decline measurably with age. This creates an oxidative imbalance which accelerates cellular damage, speeds up structural protein degradation, and helps explain why hyperpigmentation worsens progressively with age. Pollution, infrared radiation, and metabolic stress compounds this loss.
Topical supplementation — through a formula that actually delivers — is the most direct way to restore and maintain adequate skin levels.
The formulation challenge
L-ascorbic acid is chemically reactive by nature. That reactivity is the source of its power and its vulnerability. In the presence of air, light, heat, or water, it oxidizes rapidly and loses its antioxidant properties. Ensuring its stability in a formulation is key in designing a high efficacy formula
Our proprietary NextGen® Technology, addresses the instability of L-ascorbic acid and enables our serum formulas to remain stable and to ensure the pure Vitamin C remains active for 10 hours inside the skin after application. This has been confirmed by ex vivo cutaneous absorption studies using a microdialysis system.
Pure form vs derivatives: why it matters
L-ascorbic acid is the only form of Vitamin C directly bioavailable to skin cells — no conversion required. Derivatives such as ascorbyl glucoside or sodium ascorbyl phosphate must first be converted by skin enzymes, a process that is incomplete and variable. When it comes to antioxidant protection and collagen stimulation, pure L-ascorbic acid remains the reference standard — and the only form Alphascience formulates with.
Skin benefits
The gold standard of skincare antioxidants for over three decades, L-ascorbic acid remains the most clinically validated actives in modern dermatology.
- Intercepts oxidative damage from UV, pollution, and environmental aggressors before it reaches skin cells
- Actively stimulates collagen synthesis
- Inhibits melanin overproduction by blocking tyrosinase, the key enzyme in pigmentation,
- Regenerates Vitamin E by restoring back to its active form, amplifying the skin's overall antioxidant defense system
- Accelerates skin repair reducing post-procedure downtime and reinforcing barrier resilience
- Delivers visible radiance for a brighter, more luminous complexion with consistent use
ALPHASCIENCE formulas containing Pure Vitamin C (L-Ascorbic acid)
TANNIC [CF] SERUM, PHYTIC [TC], ALPHA BRIGHT SERUM, NOVACELL [CG] SERUM, MELA BRIGHT[C+] SERUM