Yes. When completing your initial profile questionnaire, you can select both options. If you choose to participate in face-to-face studies, you must ensure that you can attend our Barcelona center during office hours.

Yes. All activities are conducted in compliance with the highest standards of ethics and quality, guaranteeing the safety and well-being of the participants. • All the products we use comply with current cosmetic regulations and have passed prior quality controls. • The tests are performed under the supervision of technical staff and dermatologists or specialized professionals. • Each study follows strict protocols that ensure the products are used safely and in a controlled manner. • During participation, volunteers are supervised and any incident is handled immediately. • Before participating, you will receive all the information about the study, its procedures and possible risks, and you will need to sign an informed consent form.

The initial medical visit is only necessary if you are interested in participating in solar studies. A qualified professional should assess whether you meet the dermatological criteria required to perform this type of test. This visit is done only once and is essential to access the solar studies. For the other studies, a visit is not required. You will start receiving email invitations as soon as you complete your registration.

When a studio matching your profile becomes available, you will receive an email with all the information. If you are interested in participating, you must apply to the study and select the time that best suits you. If your request is accepted and you are assigned a time, you will receive a confirmation email with the assigned date and time. If a message appears saying "no spaces available", it means that all studio places have been filled.

If you cannot attend the scheduled visit, you must notify us as far in advance as possible via WhatsApp or email. If there are available times, we will try to reschedule your appointment. Otherwise, your participation in that study will be cancelled.

If you do not complete a study, either because you cannot attend the agreed visits or because you have not correctly followed the indicated protocol, you will not be able to receive any compensation for the study.

You cannot participate in two studies at the same time when both involve the same study area or when simultaneous participation may interfere with the proper development of one of them, whether in tests carried out at our center or at any other center. This condition will be specified in the exclusion criteria for each study's call for proposals.