Cameras are harsh: side light and high resolution pick out every line, and we look older and more tired in photos than in real life. The AI softens wrinkles so the portrait still looks like a living person.
Upload a photo — Soften wrinkles is already ticked. Google's Nano Banana 2 softens forehead and frown lines, crow's feet, fine lines and bags under the eyes, and smile lines. Face shape and features don't change, skin keeps its pores, and the person looks rested but still their age. Pick the strength: Barely noticeable, Natural like a careful retoucher, or Strong for a glossy magazine finish.
Want to look a few years younger overall? Also tick Look younger: about 3 years at low strength, 5–7 at natural and around 10 at strong. Add clear skin, softer light or whiter teeth and it all happens in one run.