Hi Tove😊
Thank you for your question✨
Depending on your skin type and sensitivity, you can try adding The Ordinary Azelaic Acid Suspension 10% to your routine, but keep in mind not to use acids (like azelaic acid) at the same time as retinoids, as your "Slow Down Aging" trio contains retinol. Combining acids and retinoids can irritate the skin.
I recommend that you first introduce this slowly and then alternate between the products on completely different days to avoid irritation and get the best results, also let the skin rest completely with just moisture in between during the week. Don’t forget to use sunscreen during the day, as both acids and retinol can make the skin more sensitive to the sun.
If you feel the slightest irritation or sensitivity, then back off and take a complete break. The skin barrier can be disrupted by too many active ingredients, so the best thing is to take it easy and listen to your skin's signals.
I hope my answer can be helpful and that you have a super nice day🌞