A niacinamide toner primarily helps to minimize the appearance of pores, even out skin tone, and reduce redness. It also supports the skin's natural barrier, improving hydration and overall skin health.

For most skin types, niacinamide toner can be used daily, once or twice a day. However, it's best to start with less frequent use and gradually increase to monitor your skin's tolerance and prevent potential irritation.

Avoid using niacinamide toner in the same routine as vitamin C (L-Ascorbic Acid) products, as they can potentially neutralize each other and reduce effectiveness. If using both, apply them at different times of the day.

Glycolic acid is a chemical exfoliant that improves skin texture and reduces hyperpigmentation, while niacinamide focuses on minimizing pores, evening skin tone, and strengthening the skin barrier. The 'better' choice depends on individual skin concerns; consider using both at different times or on alternating days for comprehensive benefits.