For Dark Spots/Dullness: The Whitening Toner (Pink) is best, as it contains Arbutin and Glutathione specifically to fade hyperpigmentation.
For Fine Lines/Aging: The Age-Defying Toner (Purple) is the choice, using Retinol and Peptides to improve skin elasticity.
For Texture/Large Pores: The Rejuvenate Toner (Yellow) is most effective, as Salicylic Acid (BHA) exfoliates and clears out pores.
For Overall Radiance/Hydration: The Brightening Toner (Orange) is ideal, combining Vitamin C for glow and Hyaluronic Acid for moisture.