Apply a small amount to clean, dry skin on the face in the morning or evening. Dispense a pea-sized quantity, warm between fingertips, and gently pat and press onto the skin—do not rub—until the gritty texture dissolves and the product settles. A strong tingling sensation lasting for several minutes is normal and expected, particularly during initial uses; gradually build up frequency as tolerance develops. Avoid the immediate eye area. Always use a broad-spectrum sunscreen during the day. Patch testing prior to first use is essential, as this high-strength formula is not suitable for sensitive, compromised, or untrained skin.