We've created a helpful blog post to give you our guidelines for patch testing. First of all, a patch test is a form of allergy testing. It can be used to check whether there is a delayed hypersensitivity in the form of an allergy to certain substances known as allergens.

Patch testing for eyelash lift, eyebrow lift, eyelash lengthening and tinting is a must. An allergy or sensitivity is unfortunately something that develops over time, so allergies and sensitivities are more likely to develop after customers have been exposed to the product. This means that a client who has had an eyelash lift or tint for some time is more prone to have a reaction than a new client who has never had such a treatment. It is therefore important to carry out a patch test before the treatments.


  1. Carry out a detailed consultation with your customer
  2. Always note the patch test date
  3. Note where you applied the products
  4. Apply a small amount of the product to be used on the wrists or inside of the elbow and let it dry (the color must be mixed beforehand).
  5. Always have the customer sign that they did the patch test.
  6. When your clients return for treatment, make sure to re-sign the form and update the patch test results. Any reaction is likely to occur within 24-48 hours. Make sure the customer knows that the patch test must remain on the patch for 24 hours; if there is no reaction, it can be washed off. However, if a reaction occurs, your client should let you know and see a doctor. If there are signs of redness, itching or swelling, the treatment must not be carried out.
  7. We recommend performing a new patch test every 6 months.

We hope we were able to address your concerns about the patch test.

As always, if you have any further questions, feel free to contact us on Instagram @augenmanufaktur and we'll be happy to help.


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