1. A-Derma Biology Hyalu 3in1 Serum (30ml) - Biological Moisturizing Facial Serum A-Derma Biology Hyalu 3in1 Serum is an innovative facial treatment with certified organic ingredients. The cool gel texture hydrates in just 1 minute, plumps and strengthens the fragile skin of the face through a formula with only 9 essential ingredients to ensure optimal skin tolerance. Key ingredients/Properties Rhealba Oats: It has balancing and moisturizing properties. Florin d'Or: It is an ingredient known for its anti-fouling properties. Concentrated Hyaluronic Acid: Moisturizes and maintains moisture inside the skin. Benefits