At night, apply a small amount of Refirm Elixir Cream to clean, dry skin, massaging over the face and neck — start 2–3 nights a week and build to nightly use as tolerated. Massage 1–2 pumps of the Aging Reversal Neck Serum into the neck and décolleté, morning and evening. Always follow with a broad-spectrum SPF in the morning. Important: do not use alongside any other Vitamin C products.