Eye Brows Big Boost Fibre Gel Thunder Soft Grey

MAC's Big Boost Fibre Gel in Thunder Soft Grey delivers buildable brow volume with a fibrous gel that lifts and defines sparse arches. The creamy, tacky texture tames hairs while adding noticeable density without stiff flaking. Suited for those seeking natural-looking fullness and a feathered, textured finish, it performs well on medium to cool-toned greys.