Brand from South Korea: delphyr. Benefits:A soothing serum infused with 10% Azelaic Acid and 2% Niacinamide to calm irritated skin and help reduce post-acne redness with powerful anti-inflammatory effects.Enriched with Panthenol to further amplify anti-inflammatory effect, while preventing moisture loss.A low-irritating formula with no fragrance and artificial coloring, suitable for sensitive skin.A lightweight texture that swiftly absorbs into skin without burden.How to use:1. Apply a moderate amount on your face and neck and finish with a moisturizer.2. For optimal result, use it both AM and PM and layer with sunscreen in the AM.3. Start by using it two to three times a week and gradually increase the frequency depending on your skin conditions.