My skin type is dry/sensitive & I use Freshly Juiced Duo every morning.
I think it's fine for a teen to use. Remember to patch test for ⏳24 hours, first! I usually patch test on my inner elbow.
However, I've read people saying teenagers do not require vitamin C as their skin renews itself quite fast. I feel it's entirely up to individuals. I'd add it to my son's routine if he requires it. He's 14, btw.
Most importantly, we should listen 👂🏼 to how our skin responds & take it from there.
Here's my experience if using Dear, Klairs vitamin C 🍋 serum ⬇️
https://www.instagram.com/p/CT9SZZipRMf/?utm_medium=copy_link
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@blueskies8whiteclouds