Using Niacinamide and L-Ascorbic Acid Serums Together

It is possible to use serums containing Niacinamide and L-ascorbic acid in the same skincare routine, but it requires careful application due to their different optimal pH levels.

L-ascorbic acid is most effective and stable in acidic environments (low pH, typically 2.0-4.0), while Niacinamide is best suited for a slightly higher pH (typically 4.0-7.0).

Applying products with significantly different pH levels immediately after one another can potentially:

• Reduce the effectiveness of L-ascorbic acid.
• Convert Niacinamide into Niacin (Nicotinic Acid), which can cause temporary skin flushing (redness, warmth, itching), although the Safe-B3™ type of Niacinamide is designed to minimize this effect.

To safely and effectively incorporate both serums into your routine, consider these methods:

1. Use at Different Times: The simplest approach is to use one serum in the morning and the other in the evening. For example, apply L-ascorbic acid serum in the morning (it provides antioxidant protection against environmental damage) and Niacinamide serum at night.
2. Wait Between Applications: If you prefer to use them at the same time of day, apply the L-ascorbic acid serum first. Wait approximately 15-30 minutes for it to fully absorb and for the skin's pH to return closer to its normal level before applying the Niacinamide serum. This waiting period helps minimize potential interactions.

Always observe how your skin reacts when introducing new products or combinations. If you experience significant irritation or flushing, consider separating the application times further or using them on alternate days.