Eyebrows frame the eyes and steer the perceived mood and personality of a sex doll. Custom eyebrow styles can broaden the range of expressions from surprised to contemplative to confident. When designing, consider arch height, thickness, and length: a high arch often conveys alertness or drama, while a flatter, thicker brow can imply steadiness or intensity. The corners’ shape—whether uplifted, downward-slanting, or neutral—also shifts interpretive emphasis. Material choice and finish affect durability and realism. For a natural look, blend color and texture with the skin tone; maintain a soft edge where the brow meets the forehead to avoid a harsh line. If you prefer a movable option, lightweight, flexible brow prosthetics can enable expressive posing without heavy adhesives, though they require careful handling to stay aligned. For permanent enhancements, ensure the pigment adheres to the base material and resists wear from routine cleaning. Maintenance includes regular gentle grooming to avoid splayed hairs and to keep lines crisp. Cleaning should be mild and not abrasive, preserving both color and texture. With thoughtful design, eyebrow customization can dramatically expand the doll’s range of expression while preserving head comfort and structural integrity.