BIAB Collections B1 + B2 (72 shades total, HEMA-free + TPO-free, applied from bottle), Builder in a Bottle Ver2 (36 sheer natural shades, thicker rubber-base-like consistency), and Builder in Jars (18 shades, 30ml jar for extensions + sculpting).
BIAB B1 + B2 collections are HEMA-free AND TPO-free — the cleanest formula tier. Lead with B1/B2 for sensitivity-conscious clients. Builder in a Bottle Ver2 and Builder in Jars are HEMA-free but contain TPO.
Up to 4 weeks with proper prep, application sequence, and finishing. Low-heat cure formula reduces nail bed sensitivity during cure cycle.
10 steps: prep + file + dust + acetone wipe → dehydrator (wait matte) → Protein Bond or 2-in-1 Primer → thin base cure → thin slip layer cure → thick apex coat cure → file to shape + wipe → color coats (optional) → top coat cure. Use Lavis 2-in-1 Primer & Protein Bond to save a step.
Jars (30ml, thicker gel) are preferred for gel extensions and sculpting work — easier product pickup and controlled placement for extension length. Builder Bottle is faster for overlay services and natural-look BIAB — paint-on application.
Yes. Many techs use Lavis Builder Gel (jar) instead of Soft Gel Adhesive for tip bonding — stronger bond, especially on oily or lifting-prone nails. Pair with Lavis Soft Gel Tips for the full system.