“What’s the Difference Between 1RL and 3RS Needles in PMU?”

 

What’s the Difference Between 1RL and 3RS Needles in PMU?

When it comes to Permanent Makeup (PMU), using the right needle can make all the difference in your results. But if you’re just starting out—or even if you’ve been in the game for a while—understanding what sets a 1RL apart from a 3RS can feel like decoding a secret language.

Let’s break it down in a simple, no-fluff way so you can confidently choose the right needle for brows, lips, eyeliner, and more.

 

What is a 1RL Needle in PMU?

1RL stands for 1 Round Liner. It’s a single needle configured in a round shape that’s super fine and precise.

Best used for:

• Hair strokes (microblading-style machine work)

• Lip outlines

• Brow outlines

• Precise detailing

Why artists love it:

It allows for maximum control when creating crisp, defined lines—perfect for brows and lips when accuracy is everything.

Pro tip: Start at a lower voltage for better pigment retention and less trauma.

Shop 1RL Needles: CLICK TO SHOP HERE

 

What is a 3RS Needle in PMU?

3RS stands for 3 Round Shader. This needle has three needles grouped in a round formation, giving you more coverage in less time.

Best used for:

• Shading brows, lips, or eyeliner

• Filling in large areas

• Soft ombré effects

Why artists love it:

It creates a smooth, airbrushed finish and is a go-to for powder brows, lip blush, and soft shading.

Pro tip: Use in circular or pendulum motions for the best pixelation and gradient effect.

Shop 3RS Needles: CLICK SHOP HERE

 

So, What’s the Main Difference?

 

Needle	Shape	Uses	Precision	Coverage
1RL	Single needle, round	Outlining, fine detail	High	Low
3RS	3 needles, round	Shading, filling	Medium	High

Think of it like this:

• 1RL = Drawing with a pen

• 3RS = Shading with a soft brush

 

How to Choose the Right PMU Needle

If you’re:

• Doing fine lines or strokes: Go with 1RL

• Doing shading or filling: Choose 3RS

Still unsure? Don’t stress—your technique, the area being treated, and the client’s skin all play a role. But this basic guide should give you a confident starting point.

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Final Thoughts

Knowing your needles is one of the fastest ways to level up your PMU results. Whether you’re doing brows, lips, or eyeliner, the difference between a 1RL and a 3RS needle can completely change the outcome.

Need help choosing the right setup? We’re here to support your artistry.

Browse all premium PMU needles at

www.pmusuppliesonline.com.au