She wanted to know how her sister, plagued all her life with acne problems, feels on a day-to-day basis.
So British model Megan Morewood had her face transformed by a professional makeup artist - to one covered with acne marks and bumps. Given a mirror after the process, Morewood looks visibly upset and troubled.
In the two-minute long clip by sk:n clinics, Morewood explains that her sister's severe acne affects her confidence level greatly. Working as a model for 13 years, Morewood said having good skin is very important to her.
"I'd quite like today to find out a little bit more about what she goes through and just put myself in her shoes," she says.
In the clip, she sits patiently while the make-up artist creates pus-filled spots all over her unblemished skin using a layer of prosthetic acne. Her reaction was then captured on film.
When she is given a mirror to see the final results, the impact of how terrible people suffering from acne feel hits her.
"The fact is that when I left the studio, it is not even about other people judging me. It's more about how I feel about myself, my self-esteem. I already feel less confident. And that is something my sister has had to deal with for years.
The video is one in a series of three created to give people with clear skin an insight into a condition that affacts millions of both men and women worldwide.
Click through the gallery to learn more about the condition: