This serum is perfect for pore care, containing 1% Niacinamide and 3% PHA. I purchased it, but it didn't suit my skin type, so I'm selling it. Approximately 80% of the product remains. Please see the photos for details. - Product Name: Pore Ampoule - Ingredients: 1% Niacinamide, 3% PHA - Brand: Blanc Nature - Container Type: Dropper Thank you for looking.