Vitamin C
What is Vitamin C?
Vitamin C is a active ingredient that provides targeted treatment benefits through biochemical interactions. It provides anti-aging, antioxidant protection, collagen synthesis, brightening, antioxidant and free radical protection benefits. It's particularly beneficial for addressing fine lines, wrinkles and loss of firmness. among other skin concerns. Results are typically seen in the medium-term (weeks to months). It's known for its antioxidant protection against environmental damage.
Perfect For
Oily: Neutral effect on oily skin
Dry: Neutral effect on dry skin
Sensitive: Neutral effect on sensitive skin
Combination: Depends on specific formulation and application technique
Mature: Highly beneficial - addresses multiple signs of aging
Key Benefits
Core Competencies
Considerations & Cautions
Can cause irritation at higher concentrations or more acidic formulations. Unstable and easily oxidized when exposed to air, light, and heat.
Ingredient Interactions
Works well with: vitamin e, ferulic acid, hyaluronic acid, peptides
Avoid combining with: niacinamide, retinol, retinoid, copper peptides, benzoyl peroxide
Notes: Combination with vitamin E and ferulic acid enhances stability and efficacy; avoid combining with ingredients that alter its pH
References
Strength: Strong - Multiple clinical trials
Key Studies:
• Fitzpatrick R, et al. Dermatologic Surgery (2002): 3-month study showing improvement in photoaged skin
• Humbert P, et al. Experimental Dermatology (2003): Demonstrated increased collagen synthesis
• Pinnell S, et al. Dermatologic Surgery (2001): Study on stabilization and efficacy
Mechanisms:
• Potent antioxidant that neutralizes free radicals
• Required cofactor for collagen synthesis
• Inhibits tyrosinase enzyme activity
• Reduces inflammatory response in skin