The BLF 339 Crease Brush (Dome) is a specialized brush that is designed to help you smudge and blend eyeshadow in the crease of your eyelid. Here are some tips on how to use this brush effectively:

Smudging: To smudge out eyeliner or eyeshadow, use the BLF 339 brush to apply a dark eyeshadow shade directly over the liner or shadow. Using small circular motions, smudge the color outwards and upwards for a smoky effect. The dome shape of the brush will help to diffuse the color softly for a blended, seamless look.

Blending: To blend different eyeshadow shades together in the crease of your eyelid, use the BLF 339 brush to apply a lighter shade first, then follow up with a darker shade. Use the tip of the brush to concentrate the darker color on the outer corner of your eye and then blend it into the lighter color using a back-and-forth motion.

Softening harsh lines: If you find that you have applied too much eyeshadow, use the BLF 339 brush to soften harsh lines and blend the color outwards. The dome shape of the brush will help to distribute the color softly and create a more diffused effect.

Remember to clean your brushes regularly to prevent bacteria buildup and ensure the longevity of your makeup tools/