Bio Seaweed Gel USA | Gel Nail Polish | Nail Care Accessories

Brush On Builder X Starter Kit

Brush On Builder X Starter Kit - Main image
$52.5 $75 In stock

Category: Sculpting Gel System

The Brush On Builder X Starter Kit is the perfect introduction to structured, long-lasting gel nails. This essential kit includes a Base Gel, Top Gel, and our Brush On Builder X—designed to deliver strength, flexibility, and a flawless finish with effortless application. Ideal for overlays, natural nail reinforcement, and subtle extensions, this trio creates a smooth, durable foundation while maintaining a lightweight feel. Perfect for both professionals and at-home users looking to elevate their gel routine with salon-quality results.

Brush On Builder X is perfect for strengthening natural nails or creating long-lasting extensions. It provides the same strong structure, self-leveling formula, and reduced heat spike during curing, now with the added convenience of a brush-on applicator for smoother, more precise application.

  • Available in Clear
  • Compatible with our gel polish and other products in the Sculpting Gel System for seamless use
  • Same strong, self-leveling, flexible and durable formula as Builder X Sculpting Gel, now in a brush-on gel for easy application
  • Thinner consistency for smooth, precise application while maintaining strength and durability
  • Provides reduced heat spike during curing for greater comfort
  • Perfect for overlays (natural nail strengthening), sculpting and building short or medium length nail extensions
  • Size: 15 mL (0.50 fl.oz)
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.4 / 5 · 5 reviews)

Harper Y. ★★★★★

The kit has everything you need to get started, and I love that the base and top gels come included so there's no guesswork about compatibility. The brush-on builder applies thick enough to shape a nice apex, and my nails have stayed chip-free for over two weeks now.

George ★★★★★

The base gel glides on so smoothly and self-levels beautifully, which saved me from a lot of filing. My nails have held up for two weeks without a single chip.

Charlotte B. ★★★★★

After a couple of messy attempts with other gels, this kit felt like a cheat code—the brush-on builder spreads like butter and self-levels way better than I expected. Base, top, and builder all in one box means I actually finished a full set in one sitting without running to grab extras.