217381 - Stinging Study - £85

Study Overview

Eurofins Alba are inviting female subjects aged between 18-65 years to take part in a study to assess the stinging potential of test materials after a single application. Analysis of the comparisons will be performed, and the stinging potential of all the study products determined.

Visit 1 - Screening

At visit 1, participants meeting the entry criteria will be screened by a Lactic Acid Sting Test (LAST) which is a widely used screening test to predict if you have sensitive skin. Subjects will steam their face using a sauna for approximately 5 minutes. After dabbing their face dry, a study technician will apply lactic acid to the fold of the nose and saline solution to opposite side using a saturated cotton tip. Subjects will score the intensity of any stinging experienced at 10 seconds, 2.5 minutes, and 5 minutes post-application using a 5-point scoring scale.

The procedure will then be repeated in the underarm. A study technician will supervise a wet shave of both underarms after which the subjects will observe a 5-minute post-shave rest period to reduce the chance of irritation being experienced as a result of the shaving procedure. A study technician will apply lactic acid to the designated axillary crease using a saturated cotton tip. The tip will be wiped back and forwards across the axillary crease three times (with back and forth counting as one repetition, and saline solution will be applied in the same manner to the opposite axilla. Subjects will score the intensity of any stinging experienced at 10 seconds, 2.5 minutes, and 5 minutes post-application.

Visit 1 options - You will only attend ONE screening visit

Visit 2 – Friday, 14 November 2025 (Appointments are between 9:00am to 3:30pm, and this visit will take approximately 1.5 hours)

On arrival at the study centre (Day 1), subjects will wash and wet shave their underarms under the supervision of a study technician. Subjects will then observe a 5-minute post-shave rest period prior to application of the test materials. The test materials will be applied to the underarm. Subjects will be asked to relax their arms by their sides after application and then will score the intensity of any stinging experienced at 10 seconds, 2.5 minutes, and 5 minutes post- application.

Expenses

If you attend the screening visit (Visit 1) but do not meet the entry criteria for participation you will receive £5.

If you complete the Lactic Acid Screening Test but are withdrawn as a ‘non-stinger’ you will receive £35.

If you attend Visit 2 but are withdrawn after the shaving procedures, you will receive £50.

If you complete the whole study, you will receive £85.

To take part in our study, please fill out the link below:

https://www.surveymonkey.com/r/217318

To hear more about our other paid opportunities, please register with us as a volunteer!