Early 30s & recently noticed lines on my forehead, do I need filler? (Photo)

From the limited photo it appears the better treatment for you would be Botox. This will help to soften lines and wrinkles caused from dynamic muscle activity. You can also consider SkinPen which is used to improve overall skin tone and texture. We always recommend using medical grade skin care products like Transform MD and wearing sunscreen every day.

If the lines become visible or deepen with elevating the eyebrows (i.e. dynamic wrinkles), then Botox would be helpful. If the lines persist at rest, (i.e. static lines), then filler would serve to elevate and smooth them. Simple subcision, alone or in combination with filler, can do this, as well, for a more durable improvement. And, regarding age, nowadays, if we start treating these early on, even in the early twenties, we call this "prejuvenation." What's more, the earlier we start such treatments, the less likely there will be a need for more dramatic and expensive anti-aging interventions down the road. You would be wise to make sure to consult with a board certified cosmetic dermatologist. Hope this helps and best of luck.

Your options are: Botox and Lasers. ( Pico, RF Microneedling, Fraxel) You also need to use good skincare with Topical Vit C, Retinols/retinoids, sunscreen, peptides, moisturizers.
Starting early is always the best investment you can make.
Best, Dr.Anna Avaliani, NYC