This revolutionary custom-blend hydrator gives you the power to hydrate and treat your main skin concern, your way. The Active Cartridge Concentrate for Irritation delivers concentrated actives, including Lactobacillus Probiotic Ferment, to calm and comfort skin. Add it to your hydration base to create your Clinique iD.Concentrated actives in the cartridge calm and comfort irritated skin. With continued use, see a visible reduction in skin redness. Choose from four hydration bases: Dramatically Different Moisturizing Lotion+ - Hydrates all day. Helps strengthen skin's moisture barrier, so more moisture stays in. Slips on easily, absorbs quickly. Protects against skin-damaging pollution. Dramatically Different Oil-Control Gel - Combines all-day oil-free hydration with skin-strengthening ingredients. Balances and refreshes oilier skin types. Slips on easily, absorbs quickly. Protects against skin-damaging pollution. Dramatically Different Hydrating Jelly - Delivers 24-hour hydration repair plus pollution protection. Clean Shield Technology locks in the goodlike moistureand filters out the bad. Strengthens skin's moisture barrier and improves resiliency. Unique water-jelly texture feels fresh, penetrates quickly. Dramatically Different Moisturizing BB-gel - 8-hour oil-free hydration, plus Transforming Tint Release Technology™ delivers a sheer wash of colour to naturally perfect and unify skin tone. Key Ingredients / Technology: Skin-soothing Lactobacillus probiotic ferment comforts and calms irritation. Custom-Blend Chemistry Technology isolates the concentrated actives in the cartridge from the basedelivers optimised results with every pump by freshly combining the precise dose of concentrated actives and base for the ultimate customised experience. International patent-pending package. Allergy Tested. 100% Fragrance Free. Dermatologist-Developed. Non-Acnegenic. Always formulated for maximum results without irritation. Formulated without parabens, phthalates, fragrance. Just happy skin.