Milani Stay Put Liquid Brow Wax is a product for shaping and holding brow hairs in place. It is a colorless wax and does not come in tinted versions but can be combined with other brow products (powders, brow pens, etc.) to add color. It similar in concept to a clear brow gel but feels different to the touch (not crunchy), and has more hold but remains flexible all day.
The Covergirl Easy Breezy Brow Ink Pen is a dual-ended felt tip brow product and spoolie available for around $10 and comes in 4 shades. It is supposed to be able to create fine hairlike strokes and be smudge resistant.
The NYX Lift & Snatch Brow Tint Pen is a brush-tip brow product that comes in 10 shades and retails for $12. The product inside is a semi-sheer liquid, similar to an eyeliner but not as pigmented and the brush tip is very fine and offers a high level of control.
The Anastasia Beverly Hills Micro-Stroking Detailing Brow Pen is claimed to be “a waterproof, superfine-tipped pen ideal for creating realistic hair-strokes that will give you your most natural-looking brows yet”. It contains 0.5 ml / 0.017 fl oz of product and it retails for $22.