I consulted with the Skinlist team and SA3 serum was recommended as part of my daily routine. I have an atopic skin prone to irritations. After a year of using SD7 + this SA3 serum, I haven't had any irritations or dermatitis on my face. The serum is light with a pleasant structure and smell, safe for the eye zone. My skin is properly nourished and hydrated. I'm really satisfied with the serum.