Brand Sizing Rule Checker
“Always size up” and “always size down” cannot both be universal. Choose a brand or system to see the current official instruction, the source page, the check date, and where the rule stops applying.
Current official guidance: size up, then refine the fit.
Glamnetic’s current application guidance says that when you are between two sizes, choose the larger press-on and file the sides and/or cuticle end while repeatedly checking the fit.
Use this only when the specific Glamnetic product follows the current application system linked below. Product molds and size counts can vary by set.
Dry-fit the larger candidate. If it touches skin, rocks, or needs heavy reshaping, do not force the rule—compare the actual product chart and the smaller candidate.
Do not carry the Glamnetic size number into another brand. The number is a mold label, not a universal millimeter code.
- Glamnetic — Applying Press On Nails ↗Official application page; explicitly says to size up when between sizes.
- Glamnetic — Quick Press Mani ↗Official pre-glued system page; currently repeats the size-up instruction.
Why one universal “between sizes” rule fails
These are current official instructions from the systems above. The disagreement is the point: the product system and mold matter.
| Brand / system | Current official direction | What Press-On Fit Lab does |
|---|---|---|
| Glamnetic Glue-on Press-On Nails / Quick Press Mani | Size up | Keeps the rule brand-specific and preserves millimeters as the portable measurement. |
| Olive & June Press-Ons | Size down | Keeps the rule brand-specific and preserves millimeters as the portable measurement. |
| Dashing Diva Magic Press | Size down | Keeps the rule brand-specific and preserves millimeters as the portable measurement. |
| KISS / imPRESS imPRESS no-glue press-on nails | Size down | Keeps the rule brand-specific and preserves millimeters as the portable measurement. |
| OPI xPRESS/ON / On Point press-on nails | Size down | Keeps the rule brand-specific and preserves millimeters as the portable measurement. |
| BTArtbox Press-On Nail Size Calculator | Conditional | Keeps the rule brand-specific and preserves millimeters as the portable measurement. |
| MOONLEE Current sizing pages | Conflict found | Flags the conflict and routes to the exact product/shape or family chart. |
Open the versioned chart library.
Use the exact product/shape or verified product-family snapshot before comparing a printed size label across brands.
What this tool is—and is not
This is a source tracker, not a cross-brand size converter. It records current manufacturer guidance and highlights conflicts. Your raw nail widths in millimeters remain more portable than a molded size number, and the final dry-fit still needs to account for curve and contact.
Manufacturer pages can change. Recheck the linked source before relying on a rule for a new set, especially if the product line or mold has changed.