Frequently asked questions
What is the difference between Lavis builder gel in the jar and in the bottle?
The container and the body. The bottle has a brush in the cap and is the easier product for overlays and short extensions, especially the Ver 2 formula that stays where it is brushed. The jar is a 30 ml pot with no brush: you pick up a bead on your own builder brush, place it at the apex and shape it, so it suits techs who sculpt and anyone coming from acrylic. The jar gel is medium-thick and self-levels once placed. Both cure as a hard gel, both are formulated without HEMA, and both sit under the same base and top.
Which brush do I use with the jar?
A builder brush or a two-ended polymer brush, from our brush collection. The flat side picks up and places the bead; the fine end pulls gel out to the side walls and tidies the cuticle line. Keep one brush per pot color where you can, because a brush moved from a pink pot to the clear tints the clear over time, and wipe with gel cleanser between shades at minimum.
Is the 00 Clear included in the 18-color set?
The set listing says 18 colors and the page carries 19 jars, so the set covers the named shades 01 to 18. If you want the clear as well, add the 00 Clear single to the order. Clear is the jar most extension work uses, since it takes any color on top and encapsulates foil, glitter or dried flowers on a dual form.
How thick should a builder overlay be, and why is my bead not curing?
Thin at the cuticle and free edge, with the height at the apex, the point about a third of the way from the cuticle where the nail flexes most. A bead that stays soft in the middle after a full cure was placed too thick for the lamp time: cure in two thinner layers instead of one, pinch-cure each finger for a few seconds to hold the curve, then give the full hand 60 to 90 seconds. Re-filing over the apex after it has cured thins the structure, so shape the free edge and leave the curve alone.
What is builder gel in a jar?
The same builder gel Lavis sells in a brush-on bottle, in a 30 ml pot with no brush. You pick it up on your own brush, place a bead where the structure needs to be, and shape it before it cures. Once cured it sets as a hard gel: strong enough to hold an apex and a short extension, flexible enough not to crack when the nail bends, and thick enough to stay where it is put. Lavis formulates the line without HEMA.
A jar suits a tech who already sculpts. The bottle brush is a convenience for overlays; a separate brush gives more control over bead size and placement, and a 30 ml pot holds more gel than a bottle in the same space on the trolley. The trade is that the jar asks for a brush of your own and a little more technique, which is why we keep Lavis Builder Gel in the Bottle on a separate page for the beginner and the overlay-only salon.
The 19 jars on this page
A 00 Clear plus 18 named shades, all sheer-to-milky nudes, whites and pinks, and each name is printed on the jar so the wall reads without a chart. The 18-color set puts the named shades on the wall in one order.
| Group | Shades | Use |
|---|---|---|
| Clear | 00 Clear | Extensions and overlays that take a color on top; encapsulated art. |
| Whites | 01 French White, 02 Milky White | French free edges built in structure rather than painted, and milky overlays. |
| Soft pinks | 03 Baby Pink, 05 Blushing Bride, 07 Princess Pink, 13 Pink Vanilla, 14 Pink Sugar, 15 Pink Press | The "no color" overlay: structure that looks like a well-kept natural nail. |
| Rose and berry | 09 Rose, 10 Strawberry Gloss, 11 Coquette | A pink that reads as a color from across the room, no gel polish needed. |
| Nudes and neutrals | 06 Pastel Mellow, 08 Uptown Girl, 12 Himalayan, 16 Toasted Marshmellow, 17 Ambrosia | Cover nudes for clients who want the nail bed evened out. |
| Peach and apricot | 04 Peach Please, 18 Apricot | Warm nudes for olive and deeper skin tones. |
Jar, bottle or non-sticky: which Lavis builder?
| Builder Gel in the Jar (this page) | Builder Gel in the Bottle | Non-Sticky Builder Gel in Jar | |
|---|---|---|---|
| Container | 30 ml pot, own brush | Brush-on bottle | 15 g or 30 g pot, own tool |
| Body | Medium-thick, self-levels on the nail | Ver 1 flows, Ver 2 stays put | Thick, holds a shape, no tack on the tool |
| Made for | Sculpting, extensions, structured overlays | Overlays and short extensions, beginners | 3D shapes, charms, raised French, encapsulation |
| Shades | 00 Clear + 18 nudes and pinks | 00 Clear + 72 sheer naturals | Clear, three whites, black, silver, gold |
| Needs | A builder or polymer brush | Nothing, the brush is in the cap | A silicone tool or fingers |
Most Lavis salons keep two of the three: a bottle line for the overlay menu and a jar (this one or the non-sticky) for the tech who sculpts. All three cure under the same lamp and sit under the same base and top from Base & Top Gel.
How do you build a nail from the jar?
- Prep. Push back, file the shape, buff the shine off, dust. Lavis pairs its builder with a protein bond and primer; neither is cured.
- Thin base, cured 60 seconds. A gel base or, for a flexible foundation, an LDS Rubber Base coat.
- Frame layer, not cured. A very thin coat of the jar gel over the whole nail. It gives the bead something to grip and stops it sliding.
- Place the bead at the apex. Pick up a bead on a builder brush from our brush collection, set it on the stress point (the highest point of the curve, a third of the way from the cuticle), push it toward the cuticle without touching skin, then draw it down to the free edge. The medium body self-levels, so let it settle for a few seconds rather than working it flat.
- Pinch cure, then full cure. Three to five seconds per finger under the lamp holds the curve; 60 to 90 seconds for the full hand once all five are placed. Lavis lamps are under Lavis Nail Lamp.
- Extensions. For length, build over a dual form: fill the form, press, cure, release, then refine. Poly gel from Lavis Poly Gel Non-Sticky is the alternative for longer extensions.
- Refine and finish. Shape the edge, keep re-filing over the apex to a minimum so the structure stays, then color if wanted and top coat.
Refills follow the same route from step three: soak the color off, keep the builder that is still bonded, re-bond the regrowth, and place a fresh bead. Two long guides on our blog cover the prep order and the physics of the apex: nail prep for builder gel and apex and C-curve.
Who buys the jar?
- Techs coming from acrylic: bead-and-brush is the acrylic motion without the monomer, and the jar is the container they already know.
- Salons that sculpt extensions: a pot lasts through more sets than a bottle, and the brush choice is yours.
- Structured overlays on weak or thin natural nails: a cured hard-gel layer over the plate, with the apex placed where the nail flexes most.
- Color-and-structure in one step: the rose and berry shades and the cover nudes finish as the color, so a builder manicure needs no gel polish on top.
- Encapsulated art: 00 Clear over foil, glitter or dried flowers on a form.
Care and stocking the jar
- Lid on between nails. An open pot next to a running lamp skins over at the surface.
- One brush per pot color if you can. A brush moved from a pink pot to the clear tints the clear over time; wipe with gel cleanser between shades at minimum.
- Do not thin it. The medium body is what makes the bead self-level; a thinned gel runs into the cuticle.
- Open with three pots: 00 Clear, one soft pink and one cover nude covers most overlay clients; add the set once the sculpted menu is booking.
- Curing trouble: a bead that stays soft in the middle is too thick for the lamp time, not a bad pot. Our guide on why builder gel does not cure walks through it.

