Using the products in this set together treats these skin problems: ROSACEA, ACNE, SPOTTED skin. The package has been put together so that people with sensitive skin can also use it! The set contains: 1 pc Maruderm SPF 50+ Pink Tone Up Sunscreen Cream 50 ml 1 pc Maruderm 5% Azelaic Acid Moisturizer for Problematic Skin 200 ml 1 pc Maruderm 10% Azelaic Acid Facial Serum 30 ml 1 pc Maruderm AHA Brightening Skin Toner 250 ml 1 pc Maruderm Centella Asiatica Soothing and Moisturizing Toner 250 ml For the complete routine, we recommend a gentle facial cleanser as step 1, e.g. Maruderm Gentle Facial Cleansing Gel for Sensitive Skin.