Ahmad R, Ainiyah N. Optimization of formulation and physical test of toner preparation from lavender essential oil (Lavandula angustifolia l.) as anti-acne. JPS [Internet]. 2025 Mar. 1 [cited 2025 Apr. 3];8(1):367-7. Available from: https://journal-jps.com/new/index.php/jps/article/view/381