Sinay Cosmetics

Sinay Cosmetics suppliers hand-tied tape-ins, micro-rings, halo, and invisible wefts for salons and stylists across Manhattan. Their stock shifts with trends in color, texture, and length—thin strands for precision work, pre-bonded closures for quick swaps, clip-ins for clients who want a night-out change. A two-block walk north of Union Square, the shop sits on a busy stretch of 5th Avenue where delivery vans double-park and office workers file past with coffee sleeves. Small enough to skip the lobby, yet visible from the sidewalk if you know to look for the frosted glass with the angled script.

Twelfth floor, suite 1202—elevators open into a short corridor with industrial lighting and a single directory. Inside the front desk is less cluttered than you’d expect for a wholesale supplier: reps keep swatch cards magnetized to the wall, fresh orders stacked in narrow bins, notepads filled with client initials scribbled next to weight and gauge. The neighborhood hums with pop-ups and pop-ins—cafés rolling out matcha drafts, vintage stores sliding open their roll-up doors at noon—so the quiet workspace feels like a pause rather than a secret.

Call 212-555-0198 to ask about bulk tape-in bundles or last-minute UPS pickups; they’ll email you a packing list before you hang up. Need to swing by? Grab the map straight to the door. The elevator dings and you’re there.