Cetaphil Optimal Hydration 48H Activation Serum 30ml

This serum is best suited for dry, dehydrated, and sensitive skin that needs lightweight daily hydration. It is designed to improve comfort without a heavy or greasy finish. If your skin is very oily or acne-prone, patch testing is still advisable before regular use, especially if you are layering multiple leave-on products.

Yes, it can usually be used with moisturizers, niacinamide, and sunscreen. It is generally suitable as a hydration step before richer creams or barrier-supporting products. If you use exfoliating acids, retinoids, or prescription treatments, introduce the serum gradually and monitor for irritation, because sensitized skin may react to overlapping routines.

Apply it to clean skin once daily at first, then increase to twice daily if tolerated. Avoid direct contact with the eyes and do not apply onto broken or actively irritated skin. If burning, redness, or itching develops, stop use and reassess. For persistent eczema, dermatitis, or allergy-prone skin, seek clinician guidance before continuing.