Titration 101 ✨ Titration in skincare: the process of leveling up actives over a period of time to improve skincare results. What: An All-Trans Retinol formula available in 3 strengths: 2X, 5X & 10X for a well-rounded Titration routine! Do you use Retinol? #retinol #antiaging #titration #serumlayering #replenix