REVLON ColorStay Brow Fiber Filler waterproof brow gel, 303 Medium Brown — longwear 48H, fiber-infused fullness

Revlon ColorStay Brow Fiber Filler is a waterproof, longwear eyebrow gel with fiber-infused tint that builds natural-looking fullness and keeps brows defined for up to 48 hours.

Engineered for easy layering and dependable wear, this tinted brow gel combines lightweight fibers, conditioning avocado oil, and a 2-in-1 brush and comb applicator to thicken, shape, and hold brows without stiffness. The 0.23 fl. oz. tube in shade 303 Medium Brown offers a balance of warm and neutral tones suited for medium-haired looks, while the formula resists smudging and humidity for extended wear.

How quickly does ColorStay Brow Fiber Filler create fuller brows?

You’ll see visible volume and definition after the first few swipes thanks to tiny synthetic fibers that cling to natural hairs. The tinted gel deposits color and texture simultaneously, so you can build coverage from subtle to bold without patchiness.

• Tint plus fibers in one step for instant thickness
• 2-in-1 brush and comb distributes product evenly
• Buildable formula—apply light layers for natural fill
• Contains avocado oil to condition hairs while styling

Will this eyebrow gel stay put through a busy day or event?

The waterproof and smudge-resistant formula is designed to withstand humidity, sweat, and routine touch. Revlon states up to 48 hours of wear, making it suitable for travel, long days, or overnight events when you need a low-maintenance brow solution.

• Waterproof, smudge-proof texture locks fibers and color
• Flexible hold avoids a crunchy finish while retaining shape
• Longwear performance for extended outings or travel
• Easy to remove with standard eye makeup removers

How do I apply the 2-in-1 brush for best results?

Start with clean, dry brows. Use short, upward strokes to deposit the gel and fibers at the base of hairs, then comb through with the finer side to blend and refine shape. Layer sparingly in areas that need more density until you reach the desired look.

• Use the thicker side to lay down color and fibers
• Comb with the thinner side to smooth and shape hairs
• Apply in light layers for a natural gradient effect
• Touch up stray hairs or sparse spots for precise definition

Does shade 303 Medium Brown match most medium-toned brows?

Shade 303 Medium Brown is formulated to complement medium brown or warm-toned hair without appearing overly red or ashy. If you’re between shades, test in natural light—Revlon offers additional shades to fine-tune color match for cooler or warmer undertones.

• Medium brown with balanced warmth for natural blending
• Available in multiple shades to suit diverse hair colors
• Shade builds in intensity—works for light filling or bold brows
• Try a swatch on the inner brow to confirm best match

Who is this for: Revlon ColorStay Brow Fiber Filler in 303 Medium Brown is ideal for anyone wanting fuller-looking brows with minimal effort—people with naturally sparse areas, those who prefer a groomed but flexible hold, and travelers or busy professionals who need a resilient, all-day brow product. It’s a practical choice for makeup users seeking buildable coverage, long-lasting wear, and a conditioned finish without a stiff feel.

Ingredients

Aqua/Water/Eau, Isododecane, Silica, Polymethylsilsesquioxane, Cera Microcristallina (Microcrystalline Wax (Cire Microcristalline)), Alcohol Denat., Glycerin, HDI/Trimethylol Hexyllactone Crosspolymer, Hydrogenated Polycyclopentadiene, Cetyl PEG/PPG-10/1 Dimethicone, Trimethylsiloxysilicate, Glyceryl Behenate, Nylon-66, Disteardimonium Hectorite, Panthenol, Persea Gratissima (Avocado) Oil, 1.2-Hexanediol, Caprylyl Glycol, Nylon-6, Propylene Carbonate, Sodium Polyacrylate Starch, Tocopheryl Acetate, Triethoxycaprylysilane, Trisodium EDTA, Phenoxyethanol. May Contain [+/-: Iron Oxides (CI 77491, CI 77492, CI 77499), Titanium Dioxide (CI 77891)].