At 51, Alyson Hannigan looks absolutely stunning, and fans can’t believe how effortlessly she defies aging. The beloved Buffy the Vampire Slayer and How I Met Your Mother star recently stepped out looking as radiant as ever, leaving many in awe of her timeless beauty. With her signature red hair, glowing complexion, and infectious smile, Hannigan continues to captivate audiences just as she did decades ago. Whether it’s her healthy lifestyle, positive energy, or simply great genetics, one thing is clear—she looks just as incredible today as she did in her Hollywood prime!