20 May 2025 ... Niacinamide helps widenTrusted Source the space between keratin molecules. Keratin is a type of protein that keeps your skin firm and healthy.
This summary was compiled by our editorial team from publicly available information for quick reading. For full details, refer to original reporting where available.
Using a well-formulated niacinamide serum can help reduce transepidermal water loss and improve the maintenanc…
Niacinamide serum is typically applied after cleansing and toning but before heavier creams and oils. Most peo…
Niacinamide serum benefits include a strengthened skin moisture barrier through the synthesis of ceramides – a…
How often should you use niacinamide? For optimal benefits, we recommend using niacinamide either daily or twi…