Cesar DeLeon Ramirez has spent the last 24 years working in the industry as a celebrity hairstylist working with top-name celebrities from Beyoncé, Ariana Grande, Ciara, and Jennifer Hudson and touring with Karol G for the past four years. He's also traveled the world and showcased beautiful looks during major cultural moments. He has decades of experience testing new products on clients with various hair textures, densities, and colors to find his toolkit staples. Coming off the heels of New York City for Fashion Week, Ramirez shares must-haves when trying to re-create these celebrity looks at home. The main thing he hears from people wanting to style their own hair is thinking it is too thin to 'pull off' a certain look. One brand the pro has found that most hairstylists have in their toolkit is Toppik . He's a longtime user and personal fan of the Toppik brand, which has made a mark in the industry with its unique keratin fibers that fill in hair. The brand is widely known for its Hair Building Fibers, which blend undetectably with existing hair strands, instantly creating the appearance of naturally thick, full hair. Lately, Ramirez has been reaching for their new Fill Me In product, specifically designed for those on the go. The applicator wand corrects and perfects the hairline, which has become a staple product when working with his clients. Whether they have a full head of hair and Ramirez is just doing light touch-ups or their strands require more attention, this product stands out for its easy-to-use applicator, long-wear formula, and various color shades. Fill Me In comes in multiple shades and can be used on the hairline, the crown, baby hairs, and extensions. It's great for those experiencing hair thinning or hair loss at any point in their lives. Whether you are postpartum, aging gracefully, or have naturally fine hair and want to perfect your look--this product can boost confidence and create a naturally thicker, fuller-appearing hairstyle. Pick up Toppik Fill Me In at Ulta , Target , or Amazon .