SOSHE Waterproof Precision Eyeliner Refill — 1.5mm Checkmate True Black, Smudge‑Resistant Gel & Plastic‑Neutral

SOSHE Beauty’s 1.5mm Waterproof Precision Eyeliner Refill in Checkmate (True Black) is a slim, ultra-precise gel liner cartridge that snaps into SOSHE pens to deliver smudge-resistant, bold black definition while cutting packaging waste.

This refill replaces the disposable insert in SOSHE’s micro-precision gel eyeliner pen so you get clean, concentrated pigment in a slimmer environmental footprint. Formulated to meet EU and US clean beauty standards, the refill combines a waterproof, long-wear gel base with a fine 1.5mm tip profile for sharp lines, tightlining, or subtle accents. It’s designed to swap in quickly, reduce plastic packaging per gram of product, and keep your favorite black shade at the ready without buying a whole new pen.

How precise is the 1.5mm tip for everyday looks?

The 1.5mm diameter provides a balance between control and coverage: thin enough for crisp eyeliner flicks and tightlining, yet wide enough to lay down rich pigment in one pass. Beginners and pros can use the same refill to create delicate hairlines or stronger graphic lines depending on angle and pressure.

• 1.5mm tip for defined winged or natural lashline looks
• Gel formula delivers even pigment with minimal tugging
• Suitable for fine detail and slight filling techniques

Will the refill stay put through the day and in humid conditions?

The gel is formulated to be waterproof and smudge-resistant when set, offering prolonged wear under normal daily activities. It’s made to withstand humidity and mild eye moisture, though heavy rubbing and eye creams can reduce longevity.

• Waterproof gel base for resistance to smearing
• High-pigment formula maintains bold color
• Best set after a few seconds of application for optimal hold

How does the refill reduce environmental impact compared to a full product?

Refills use significantly less packaging material than buying a complete pen each time, lowering plastic waste per gram of product. SOSHE’s refill system lets you keep the pen body and only replace the inner gel cartridge, which reduces single-use components and supports 100% plastic-neutral commitments.

• Refill format minimizes outer packaging and materials
• Keep and reuse the original pen body to reduce plastic waste
• Certified plastic neutral program offsets remaining plastic footprint

Is the Checkmate true black formula clean and cruelty-free?

Yes—SOSHE follows EU and US clean beauty guidelines, and this refill is free from parabens, sulfates, PPG, phthalates, talc, and formaldehyde. The formulation is certified cruelty-free by Leaping Bunny, and the brand publicly commits to transparent ingredient practices.

• Free from common controversial ingredients for peace of mind
• Leaping Bunny cruelty-free certification confirmed
• Compatible with SOSHE’s refill system for reduced waste

Who is this for? Makeup wearers who favor precise, dependable black liner without replacing an entire pen will appreciate this refill. It’s made for anyone who values clean-beauty formulations and wants to cut packaging waste—ideal for daily commuters, makeup artists looking for a refillable option, or shoppers seeking bold, waterproof black with a low environmental footprint.

Ingredients

TRIMETHYLSILOXYSILICATE, METHYL TRIMETHICONE, SYNTHETIC WAX, EUPHORBIA CERIFERA (CANDELILLA) WAX/CIRE DE CANDELILLA, CANDELILLA WAX HYDROCARBONS, DIISOSTEARYL MALATE, DIPENTAERYTHRITYL PENTAISOSTEARATE, SYNTHETIC FLUORPHLOGOPITE, SORBITAN SESQUIISOSTEARATE, TOCOPHEROL, DIMETHICONE, MALTODEXTRIN (IN NIGHTS IN BORDEAUX),[+/- (MAY CONTAIN/PEUT CONTENIR): ULTRAMARINES (Cl 77007), IRON OXIDES (Cl 77491, Cl 77492, Cl 77499), CARMINE (Cl 75470), TITANIUM DIOXIDE (Cl 77891)).