troubling new trend involving botox. It's been used by so many as a miracle remedy for premature aging and wrinkles but now you're starting to see 20-year-olds use it too raising questions about safety and effectiveness, here's abc's linsey davis. Reporter: Not a crease nor wrinkle could be found on clara's forehead and counting on botox to keep it that way. How do you know that the botox is actually helping you to stay younger. Well, I have one or two wrinkles starting to come out like on my forehead. After the botox I didn't see it at all. Reporter: It all started out as treatment for her migraines but now -- something you would continue to do to continue to look -- oh, yeah, I will. I will continue doing. Reporter: Battling the sands of time with botox use is increasingly becoming a trend FOR WOMEN IN THEIR 20s, EVEN Teens. I had a lot of 27 and 28-year-olds especially ex-tanners that spoke that I do consistently every three to four months. Reporter: Of the 6.1 million botox type a injections performed in 2012, almost 100,000 of them were patients in THEIR 20s, A 10% INCREASE IN That age group from the previous year. No problems with that? Reporter: Dermatologist janine downey says her preference is to inject patients over 30 but she admits in many cases the younger you start, the younger looking you'll stay. I started doing botox in my EARLY 30s. If you don't crease the envelope you'll never get the line, never have to crack or the crease. Reporter: "Good morning america" tracked the crease obsession back in 2010 when teen philippine that internet singing sensation charisse very vealed she got botox at the age of 18, tens of thousands of teens followed suit. Like getting my hair cut. It makes me feel better. Reporter: The phenomenon is called causing some to suffer from frown lines, the president of the british association of plastic surgeons says he won't give botox to women under 30. He thinks it's more important to inject them with self-esteem. For "good morning america," linsey davis, abc news, new