BOLUOYIN Pre-Inked Brow Mapping String for Microblading – Hypoallergenic, Ultra-Thin, 32ft Roll

Precision that travels from box to brow

Meet the BOLUOYIN Pre-Inked Brow Mapping String, a professional tool designed to streamline symmetry during microblading and other cosmetic mapping tasks. Each string is pre-marked with a hypoallergenic cosmetic grade pigment, letting you see guiding lines without fumbling for markers.

The roll offers 32 ft (10 m) of pre-marked mapping thread, housed in a sealed box to keep it clean between sessions. A built-in cutter sits at hand reach for quick trimming, helping you set the exact length you need without stepping away from your workstation.

Quality you can feel

Our inked string is designed for precision. It is the thinnest string available, offering a subtle but clear guide that helps achieve delicate, natural-looking brows. Crafted from detoxifying bamboo charcoal, the material is durable, disposable, and skin friendly, making it suitable for repeated practice or client sessions.

Used by professionals across salons, beauty schools, and studios, the string delivers dependable performance across a range of applications. While its primary role is brow mapping, it also supports planning for other cosmetic procedures, such as areola, scalp, or eyeliner work, with the same steady guide once you adjust to your preferred toolset.

Designed for real-world workflows

• Pre inked pigment reduces setup time and helps maintain consistent measurements throughout a session.
• 32 ft length means fewer restocks during longer appointment blocks and generous value per roll.
• Built in cutter makes length adjustments quick and clean, keeping your workspace tidy.
• Extremely thin inked line provides accuracy without overpowering the skin’s natural texture.
• Skin friendly bamboo charcoal composition offers disposable convenience and a reassuring safety profile.
• Broad compatibility with brow mapping tools makes it a versatile staple for professionals.

Real-world use cases

Ideal for microblading brow symmetry, it also assists in planning areola and scalp markings, as well as guiding eyeliner layouts. Treat it as a precise, repeatable template that can adapt to various techniques and styles.

Investing in this tool can support a clean, efficient workflow and help you deliver consistent mapping results across clients and sessions.