DupakSYS Nail Oil Pens 100 x 3ml Transparent Twist Brush Tip Pens — Leak-Proof, Travel-Ready with 120 Labels

These DupakSYS empty oil pens give you a hygienic, portable dispensing solution for beauty and cosmetic liquids. Each pen holds about 3ml, has a soft brush tip for controlled application, and locks with a sealed cap for travel-friendly leak protection. The kit includes 120 adhesive labels so you can mark formulas, shades, or ingredients for easy identification.

How do these pens keep liquids from leaking during travel?

The pens use a sealed brush-top and screw-twist mechanism to prevent spills when closed. The cap fits snugly over the brush, and the twist actuator only advances product when pressed properly, minimizing accidental flow.

• Sealed brush tip reduces cap-to-product contact.
• Twist mechanism controls dispensing volume.
• Lightweight, compact 4.96" tubes fit bags and pockets.

What types of liquids can I safely store in these empty pens?

These tubes are suitable for thin to medium-viscosity liquids such as cuticle oil, lip gloss, eyelash serums, essential oil blends, and many cosmetic serums. Avoid highly acidic, strongly alkaline, or very high-alcohol formulations that can damage the PP plastic or internal gears.

• Great for oil-based and water-compatible cosmetics.
• Not recommended for corrosive or high-alcohol content fluids.
• Works well for both professional samples and personal travel sizes.

How do I fill, seal, and use a DupakSYS nail oil pen correctly?

Fill each pen by injecting or pouring up to but not beyond the inner filling line to allow room for the brush top. Install the brush tip firmly and twist clockwise until liquid reaches the brush; press to dispense and re-cap after use. Avoid forcing the twist past the top position—doing so can damage the internal gear.

• Do not overfill; leave air space for brush insertion.
• Press firmly to seat the brush and create the seal.
• Cap after each use to maintain hygiene and prevent evaporation.

How can these pens simplify organization for salons or DIY projects?

The 100-count supply plus 120 labels makes it easy to keep multiple formulations separate and ready for clients, events, or personal routines. Transparent bodies show remaining product at a glance, while the included labels let you mark scents, strengths, or application dates for efficient workflow.

• Bulk quantity supports multi-client salon use or gifting.
• Clear tubes allow quick inventory checks.
• Label sheets aid in tracking formulas, colors, and expiration.

Who is this for: The DupakSYS Nail Oil Pen 100-piece kit is aimed at beauty professionals, makers of DIY cosmetics, and anyone who wants tidy, travel-ready dispensers for small-batch products. It fits salon technicians needing sample dispensers, home formulators packaging lip or lash serums, artists wanting a fine brush applicator for paints, and frequent travelers who prefer leak-proof mini containers. If you handle non-corrosive oils, serums, or low-alcohol cosmetics and want consistent, controllable application with clear labeling options, this kit offers a practical, economical solution.