HD Brows and BrowSculpt patch testing

Here at HD Brows, we are always looking for ways to improve our offering to support the growth of your eyebrow empire. That’s why we’ve taken a look at our patch testing policy

Why patch testing for brow treatments is important?

Patch tests are important for insurance reasons, your client’s experience (they could react to the products used in your treatments) and demonstrating that you’re a professional #BrowBossAs they are so important, we have made some changes to the HD Brows and BrowSculpt patch testing process to make things better for you long-term.  

The HD patch testing process

Here’s everything you need to know:

  • - Patch tests are required prior to the first treatment, then after 6 months (if they haven’t had a treatment in that time). This means that the patch testing process will remain the same for the HD Brows treatment, but patch tests will no longer need to be carried out for every single BrowSculpt treatment.
  • - An additional patch test must be carried out if there are any changes to your client’s medical situation.
  • - It is advised patch tests are carried out by, or in site of, a professional using formulations as they’ll be used during treatment.
  • - You must wear gloves during your treatments and patch testing clients, to prevent repeat exposure to treatment chemicals and minimise contact with skin.
  • - We will be discontinuing our transfer patch tests.


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    Can I still buy patch tests from HD Brows?

  • Our tint transfer patch tests have now been discontinued and will no longer be available to purchase. Going forward, when a patch test is required, you will need to carry out a manual patch test with some Brow Dye, mixed with Brow Dye Developer

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    Why did the patch testing process change?

  • After seeking professional advice, we have taken the decision to make some changes to our patch testing process. The main reason is to minimise exposure and limit the possibility of increased sensitivity to the chemicals in patch tests for both you and your clients. We’re always trying to make things smoother for our stylists. Reducing the frequency of patch tests will reduce the time and money spent on facilitating these and can make the client booking process more flexible.

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    What are the benefits of patch testing with treatment products?

  • Using the actual treatment products instead of a patch test ensures you are testing for a reaction against all ingredients in the formula, not just the common allergens. It’s also financially beneficial for your business, allowing you to use up leftover treatment product.

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    What should I use to patch test for tint?

  • It’s easy! Simply mix a small amount of Brow Dye and Developer together and apply to the inner arm.

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    Can clients do their own patch tests?

  • We strongly advise that patch tests are carried out by, or in sight of, a professional using formulations as they’ll be used during treatment. 

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    Does this mean I need to re-patch test all clients?

  • As long as your clients don’t meet any of the patch testing criteria (a new client, those who have not had the treatment for 6 months, or any medical changes), you will not need to patch test again.

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    Do these patch testing changes impact my insurance?

  • For any changes, we recommend contacting your insurance provider directly. 

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    How long should patch tests be left on the skin?

  • 48 hours. When a new product is introduced to the skin it can take up to 48 hours for the skin to show a reaction to it, following this expert advice of dermatologist Justine Hextall, we advise that patch tests should be left on the skin for 48 hours in total. This will allow you to carry out a safe treatment confidently. This is also something you could check with your own insurance company.

Need more support on patch testing?

If you have any further questions, please speak to your dedicated Customer Specialist for support on 0113 224 7908.