From my personal experience, using the SHEGLAM Boldline Longwear Multi-Function Gel Liner has truly transformed my makeup routine. One standout benefit is its multi-functionality—it works not only as a classic gel liner for sharp, defined lines but also as a smudge-proof base for smoky eye looks. I particularly appreciate how smoothly it applies, allowing for precise strokes without skipping or tugging on the delicate eye area. What makes this liner a favorite is its impressive longwear formula. Even after a full day of wear including exposure to heat and slight humidity, I've noticed minimal fading or smudging, which is fantastic when seeking a reliable all-day look. Tips for application: Begin with a steady hand using a fine-tipped brush for detailed lines. For a softer effect, quickly smudge the line right after application before it fully sets. This gives you versatility in your looks, from bold wings to subtle definition. If you’re new to gel liners, try pairing the SHEGLAM Boldline liner with a primer to boost its staying power and prevent any creasing. Additionally, cleansing thoroughly at the end of the day ensures your skin remains healthy and prevents any buildup. Overall, the SHEGLAM Boldline Multi-Function Gel Liner is a fantastic choice for both makeup beginners and enthusiasts looking for a dependable, versatile gel liner that enhances the eyes beautifully while offering durability throughout the day.