How to use numbing spray

Numbing Spray: The Secondary Numb You Should Be Using Correctly in Your Treatments

 

If you work in Tattooing, PMU, or skin treatments, you’re probably already familiar with topical anaesthetics. But not all numbing products work the same way—and numbing sprays are a perfect example. Unlike primary numbing creams, numbing sprays are designed specifically for use on broken or open skin and provide what’s often known as a secondary (top-up) numb.

This makes them incredibly valuable mid-treatment when your client may start to feel sensitivity again. Used correctly, they can dramatically improve client comfort and the overall experience. Used incorrectly, they can affect results or even compromise safety.

Below, we break down what numbing sprays do, how they should be used, and pro tips for getting the best performance out of them.

What Are Numbing Sprays?

Numbing sprays are fast-acting topical anaesthetics formulated specifically for broken, cut, or abraded skin.
They typically contain ingredients such as:

  • Lidocaine
  • Tetracaine
  • Benzocaine
  • Epinephrine (in some formulas, to reduce bleeding and swelling)

Because the skin is already open, the spray absorbs extremely quickly—much faster than primary creams—allowing for rapid pain relief during procedures like:

  • Permanent makeup (microblading, ombré brows, lip blush, liner)
  • Tattooing
  • Microneedling
  • Plasma treatments
  • Dermaplaning (if aggressive or intentionally breaking the barrier)
  • Laser treatments where frosting and ablation occur

Why Numbing Sprays Are Considered a “Secondary Numb”

Primary numbing creams must go on intact skin and need time (10–15 minutes) to work.

Numbing sprays, however:

  • Are only safe and effective on broken/cut skin
  • Work in under 1–3 minutes
  • Provide a “top-up” numb when the initial cream wears off
  • Help clients stay relaxed during longer or more intense parts of the procedure

Their fast action and targeted use make them ideal for maintaining comfort without stopping treatment for long periods.

How to Use Numbing Spray Effectively

To get the most from your secondary numb, application technique matters just as much as the product itself.

1. Break the Skin First

Numbing spray must never be used on unbroken skin.
Not only will it be ineffective, but it can cause irritation because it’s formulated for compromised skin only.

Break the skin using your technique (needlework, blade passes, microneedling, etc.) before applying.

2. Spray a Thin, Even Layer

More does not mean better.
A healthy mist amount is typically all you need for a small treatment area.

Spread it lightly—thick application can:

  • Slow absorption
  • Cause swelling
  • Create a sticky surface that’s hard to work on

3. Let It Sit Briefly

Most sprays take 1–2 minutes to numb, sometimes up to 3.

Avoid leaving it on too long, especially products containing epinephrine, as prolonged exposure can cause:

  • Whitening or blanching of the skin
  • Tightness
  • Distortion of pigment placement (for PMU)

Keep the timing short and efficient.

4. Remove Excess Product Completely

Before you begin working again, gently wipe away the spray using:

  • A lint-free wipe
  • Saline
  • A clean cotton pad

Any residue left behind can:

  • Interfere with pigment implantation
  • Cause slippage
  • Spread into the eyes (for lash-line work)
  • Create patchy results

5. Reapply Only When Necessary

Overuse of secondary numbs may lead to:

  • Over-swelling
  • Skin texture changes
  • Reduced pigment retention
  • Sensitivity later in the treatment

Only reapply if the client genuinely feels discomfort—not out of habit.

Safety Tips and Best Practices

✔ Always follow your local regulations and product guidelines
Different regions have different rules for topical anaesthetics.

✔ Patch test when possible
Although rare, allergic reactions are possible.

✔ Avoid using gels with high epinephrine content on sensitive areas
Especially lips, which can over-blanch quickly.

✔ Monitor client feedback
Some clients metabolise anaesthetics faster or have lower pain thresholds.

✔ Know when to stop reapplying
If the skin begins to overreact or swell, discontinue use.

Final Thoughts

Numbing sprays are a powerful tool when used correctly—helping you create a smooth, comfortable treatment experience without compromising results. They serve as an effective secondary numb for mid-procedure touch-ups and ensure that your client remains relaxed throughout your work.

Used with care, timing, and the right technique, they can elevate both client satisfaction and treatment outcomes.

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