Can anything smooth my lip creases WITHOUT filler? (Photos)

Yes, there are non-filler options to improve the appearance of deep lip creases—especially in a young patient like yourself who is already practicing excellent hydration and barrier support. While dermal fillers are the most immediate solution for smoothing creases, there are several physician-guided, evidence-based alternatives that may help over time:

Without using fillers you will likely have the best results from keeping your lips moisturized and exfoliated. You can try lip masks and very hydrating products such as Aquafor. See a medical aesthetician or dermatologist to learn more.

Every individual has these vertical lines on their lips. In some people they’re more obvious and in others not so much, but all people still have them even patients with fillers in their lipshave them.
The easiest thing you can do is use some kind of a gentle lip plumper, which makes your lips swell a tiny bit and at the same time use lipstick or gloss

I don’t think you’re going to find a treatment that gives you the results you want without having some intervention.
Maybe someone else will have a better recommendation.
Fillers, if you’re willing to try them, may give some improvement, but these lines may still persist.
mats Hagstrom MD