Builder One
Sonia G
Sonia G Builder One is a brush that retails for $32.00.
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Sonia G. Builder One Brush ($32.00) is a smaller eyeshadow brush that's more in the line of a flat, shader brush, but it's denser and thicker at the base and tapers on the front/back to a springy edge. The springy edge helps the brush distribute product more readily and smoothly across lids, while the overall density and firmness of the shape picks up product really nicely. It's made out of dyed Saikoho goat hair, and dyed bristles tend to pick up product better than undyed hair (and they tend to withstand more "abuse").
The brush is supposed to "define, smudge, and layer" by "pack[ing] on pigment exactly where you want." I love the brush for packing on powder eyeshadows on my lid, particularly getting into the inner lid and center lid areas without fear of bringing up shimmers into the crease area too easily. The more I've used the brush, the more I've felt that the ferrule is a bit large that I can sometimes feel the metal against my lid (not in a painful way, just that I can feel the coolness of the metal), and it's not my favorite brush to clean with how large the ferrule is compared to the brush head. I love the actual shape of the brush head for applying product to my lid area, though.
For smudging along the lash lines, it works well for giving a more precise, slightly blurred line of color--less diffused than if used with Pencil One. I don't find myself using it much for that purchase I tend to use pencil brushes there myself. The narrower edge fits well, though, along the lash lines and when creating a cut-crease effect as you can get close to the cut-out area without going beyond it.
Per the brand, the handle has a total length of 153.5mm with a brush head length of 8.5mm and width of 10.5mm that narrows to 7mm. As part of the core range, the handles are wider than average (the PRO range has thinner, more tapered handles). You can safely assume that the brush has held up beautifully over many washings and uses; if there are any issues from washing, shape changes, and the like, they'll be called out specifically.
Builder One
PPermanent. $32.00.
Build up the intensity of your eye look with this handcrafted flat eye shadow brush. Designed for effortless defining, smudging, and layering, Builder One makes it easy to pack on pigment exactly where you want. Plush saikoho goat bristles pick up and lay down any type of eye shadow—even tricky finishes like glitter or metallic. “This is the brush of my dreams—I love shimmers and metallics but only when I can control the placement and application. The shape works magic with difficult textures.” — Sonia G.
