20 Ene Differences Between Niacinamide and Vitamin C
Both ingredients are excellent for promoting younger, healthier skin, but they work in different ways:
Vitamin C
Function: Stimulates the synthesis of collagen and elastin, which are essential for maintaining the skin’s firmness and elasticity. It also enhances luminosity, resulting in a more radiant complexion.
Stability: The most effective form is L-ascorbic acid, which is highly potent but unstable. It degrades with light and air, which can cause irritation, particularly in sensitive or rosacea-prone skin.
Derivatives: More stable alternatives like ascorbyl glucoside or tetrahexyldecyl ascorbate are gentler formulations, although they are less effective than pure vitamin C.
Niacinamide
Function: Regulates sebum production, reduces enlarged pores, and strengthens the skin barrier by increasing ceramide production, which helps prevent transepidermal water loss.
Stability: It is more stable than vitamin C and is well-tolerated by all skin types, although tolerance may depend on the concentration in the formulation.
Conclusion
While vitamin C focuses on luminosity and firmness, niacinamide addresses sebum regulation and the health of the skin barrier. The choice between the two will depend on your specific skincare needs.
