Create strong, refined gel enhancements with the Nitro Nails Builder In Jar Hard Gel, a professional-grade hard gel system formulated for nail technicians who demand elevated performance with cleaner ingredient standards.

Designed for strength, structure, and long-lasting wear, Nitro’s Builder In Jar Hard Gel delivers smooth self-leveling application for overlays, structured manicures, apex building, and sculpted nail enhancements. The medium-to-thick viscosity provides controlled application while maintaining flexibility for precision shaping and effortless refinement.

Formulated without HEMA and TPO, this advanced hard gel system was developed for nail artists seeking a more conscious professional formula while still achieving exceptional durability, clarity, and salon-quality retention.

Nitro’s hard gel cures with a crystal-clear finish and provides the strength needed for long nail structures, salon extensions, and luxury gel services without excessive bulk. Its smooth consistency helps reduce flooding while allowing nail techs to build balanced structure and clean architecture with ease.

Product Features:

• Professional builder in jar hard gel
• HEMA-free and TPO-free formula
• Ideal for structured manicures and nail extensions
• Strong, durable salon-quality wear
• Smooth self-leveling consistency
• Excellent control for apex building and shaping
• Crystal-clear finish with refined clarity
• Suitable for overlays, sculpting, and strengthening natural nails
• LED/UV curable

50ml/ 1.69 fl.oz

Step 1: Prep
Perform a thorough dry manicure. Gently push back the cuticles, remove all non-living tissue from the nail plate, and lightly etch the surface using a 180–240 grit file. Remove all dust, then apply a dehydrator followed by an acid-free primer. Allow the primer to fully air dry before proceeding.

Step 2: Apply
Apply a thin slip layer of Nitro's Builder in a Jar without curing. Float a bead of gel to build structure, keeping the cuticle area thin and placing the apex in the stress area. Turn the finger upside down briefly if needed to help the gel self-level. Cure for 60 seconds in LED or 120 seconds in UV.

Step 3: Refine
After curing, remove the inhibition layer and refine the shape using a hand file or e-file. Ensure the structure is balanced and smooth before removing all dust.

Step 4: Finish
Apply gel color and top coat, or apply top coat alone for a natural finish. Cure according to the top coat instructions.

Maintenance: Rebalance every 2–3 weeks by debulking and rebuilding the apex.
Removal: File off only. Hard gel does not soak in acetone.