Brow Pop Nano Ultra-Fine Detailing Pencil

Kosas Brow Pop Nano is a one-millimetre brow pencil, which makes it a detailing tool rather than a filling tool. At that width the mark it leaves is roughly the thickness of a real brow hair, so it is meant for drawing in the few strands that are missing instead of shading in a whole brow.

What it actually does

• Draws hair-width strokes. The 1mm tip is the entire premise — ultraprecise marks that read as individual hairs rather than pencil lines.
• Fills the smallest gaps. Kosas positions it for tiny sparse patches, adding realistic dimension where a chunkier pencil would just look like a block of colour.
• Balanced pigment and wax. The brand's point is that the formula is firm enough to hold a crisp stroke in place rather than smudging it the moment you blink.
• Long wear. Kosas describes it as a long-wear pencil, so the detail you draw in the morning should still be there later in the day.
• Clean, vegan, gluten-free, cruelty-free and hypoallergenic, according to the brand.
• Built-in spoolie on the other end for grooming the brow before and after you draw.

How to use

1. Groom first. Use the spoolie to brush the hairs upward so you can see exactly where the gaps actually are.
2. Twist the tip out barely. Just enough that the nano point is visible — any more and a 1mm lead has nothing supporting it.
3. Flick, don't press. Use a light flicking motion in the direction the hair would grow. Pressing hard turns a hair stroke into a smudge.
4. For bigger areas, start elsewhere. Kosas suggests shaping and filling with Brow Pop Dual-Action first (sold separately), then coming back with the nano tip for detail.
5. Set it. Layering Air Brow tinted gel or the clear gel over the top (both sold separately) adds volume and hold on top of the detail.

Is it right for you?

Questions

How is this different from the regular Brow Pop?

Width and purpose. The Nano is a one-millimetre tip for hair-like detail in small gaps. The Dual-Action version is the one Kosas recommends for shaping and filling larger areas — the brand suggests using that first and then detailing with this.

Will it smudge or come off during the day?

Kosas built the formula with a particular pigment-to-wax balance so strokes stay where you put them, and markets it as long wear. If you want extra insurance, a clear brow gel over the top locks the detail down.

Do I need to sharpen it?

No — it twists up. Bring out only as much as you can see, since a 1mm lead is fragile and there is no advantage to exposing more of it.

How long does delivery take?

Delivery takes 3 to 21 working days, depending on availability. In-stock shades move quickly; shades we source for you take the longer end of that window. Working days do not include weekends or official holidays.

How can I pay?

Credit card, debit card, Instapay and mobile wallets. Cash on delivery is not available.

What if the tip arrives snapped?

Report it within 1 day of delivery with a photo. We cover defective, damaged or expired items only, and once verified the refund is returned to your original payment method within 15–30 days.