I was so skeptical of using a retinal a few years ago when i was developing my skin routine because i was in my early 20's but then i did a ton of research and found out that taking preventative measures is better then waiting to fix a problem. Im 25 now and get asked all the tome if I'm 17. Best investment ever. Also, we stop producing collagen at 25 so if I were you, i'd definitely add this to your skin routine now!!