About Uni-Carts — Professional Tattoo Supplies, Engineered for Artists
Uni-Carts is a professional tattoo supplies brand built around one belief: your equipment should never get in the way of your art. From our patented Stabiliser cartridges to Uni-Ink, the Viper pen machine, Uni-Carbon stencil paper and Second Skin aftercare film, everything we make is designed to give working artists cleaner lines, smoother shading and total confidence at the chair.
Our story
Uni-Carts began with a frustration every tattooist knows: cartridges that judder, needles that wander, and “premium” boxes that turn out to be the same generic product repackaged. We set out to fix it properly — engineering a tattoo cartridge with a genuine stabiliser system and a strengthened membrane, then inspecting every needle by eye before it ever reaches your machine. The result is a cartridge that hits the same spot, every single time, so the work you put into your art is the only variable that matters.
What we make
A complete range for the professional studio, designed to work together:
- Tattoo cartridges — round liners, round shaders, straight and curved magnums, and our premium Soft Edge Magnum, all running the patented Stabiliser system.
- Uni-Ink — premium, vegan, cruelty-free tattoo ink in a wide spectrum of shades, formulated for bold colour and clean healing.
- The Viper pen machine — a wireless rotary tattoo machine with a fully adjustable 2.5–5 mm stroke for lining, shading and colour packing.
- Uni-Carbon — premium thermal stencil paper for crisp, clean transfers with any branded thermal copier.
- Second Skin — translucent, breathable aftercare film that protects fresh work while it heals.
The Uni-Carts difference
What sets our cartridges apart is the patented Stabiliser system. By holding the needle steady through every pass, it removes the play and judder that blur lines and tire your hand — so your work comes out smoother, bolder, cleaner and more saturated. A strengthened safety membrane helps prevent ink and fluid back-flow into your machine, and every cartridge is hand-finished and individually inspected for build quality. These aren’t repackaged generics; they’re built to a standard professional artists can feel from the very first line.
Quality and hygiene you can trust
Every Uni-Carts cartridge is single-use and built for a clean, consistent, professional workflow, with a universal fit that works with all standard cartridge machines and grips. From the needle grouping to the membrane, each component is there to protect both you and your client and to keep your focus where it belongs — on the tattoo.
Vegan and cruelty-free ink
Uni-Ink is vegan and never tested on animals — a high-pigment, professional formula developed for rich, true colour and clean healing, without compromise on ethics. It’s ink you can stand behind, for clients who care where their colours come from.
Frequently asked questions
What is a Stabiliser cartridge?
It’s our tattoo cartridge built with a stabiliser system that holds the needle steady, reducing play and judder for cleaner, more precise lines and smoother shading.
Are Uni-Carts cartridges universal?
Yes — they fit all standard cartridge tattoo machines and grips.
Which cartridge should I use?
Round liners for outlines and fine detail, round shaders for soft shading and small fills, straight magnums for solid colour packing, and curved or Soft Edge magnums for smooth blends and gradients.
Is Uni-Ink vegan?
Yes. Uni-Ink is vegan and never tested on animals.
Built for your best work
Try Uni-Carts on your next piece and put our cartridges to the test.