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Six Month Smiles vs uLab

Starting price, treatment length, supervision, FDA safety record and full spec sheet for Six Month Smiles and uLab, side by side. Every figure links to the source that states it.

Prices verified Sep 30, 2026FDA records verified Sep 30, 2026
22comparisons with Six Month Smiles
19comparisons with uLab

Six Month Smiles (6MS Invisible Aligners, 6MS Relapse Aligners, 6MS Mixed Appliance)·uLab (uSmile clear aligners)

Six Month Smiles
In-office
uLab
In-office
At a glance
Starting price
Provider-setnot published
Provider-setnot published

Blue marks the lower price only where every compared price is quoted the same way (a monthly price in US dollars); prices quoted in another currency, as a one-time fee or as a provider-set range are shown exactly as stated and never converted. Adverse-event figures are raw counts of reports filed with the FDA, not rates (what the reports mean). Each spec value opens that brand's spec sheet, and its numbered sources verify the specs as a set. None of this is a recommendation: the right choice depends on your case, your budget and, above all, an in-person exam by a dentist or orthodontist.

The bottom line

What actually differs

  • Neither is marked lower, since only monthly prices quoted in US dollars are ranked against each other: Six Month Smiles Provider-set and uLab Provider-set.
Go deeper

Open the full record

Six Month Smiles
  • Prices
  • Treatment length
  • Supervision
  • FDA safety
  • Specs
  • Sources
  • Where to get it
uLab
  • Prices
  • Treatment length
  • Supervision
Keep comparing

Every comparison with these brands

Each brand against every other brand on the market. All comparisons

All 22 comparisons with Six Month Smiles

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  • vs Angel Aligner
  • vs Clarity Aligners
  • vs ClearCorrect
  • vs ClearPath
  • vs Dandy Clear Aligners
InvisibleBraces is an informational data platform, not a dentist, an orthodontist, or a seller of aligners. Nothing here is dental or medical advice, a diagnosis, or a recommendation to start, stop, or change any treatment. At-home clear aligners are not right for every case, and moving teeth without an in-person exam carries real risk. Data is aggregated from public sources and each brand's own terms and can be incomplete or out of date. Always consult a licensed dentist or orthodontist and confirm current prices and terms with the provider.
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The independent, fully-cited comparison of at-home clear aligner brands. Every figure traces to its source. Informational only, not dental or medical advice.

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Typical treatment
6-10 months
Not published
Supervision
In-office
In-office
FDA safety
No recalls
No recalls
FDA adverse-event reports
0
20
Treatment
Treats
CrowdingSpacing and gapsCrossbiteOpen biteDeep biteRelapse after bracesMild to moderate misalignment
CrowdingSpacing and gapsComplex / comprehensive cases (per provider)
Product lines
6MS Invisible Aligners, 6MS Relapse Aligners, 6MS Mixed Appliance
uSmile clear aligners
Wear schedule
Trays changed every 2 weeks; wear hours not published
20 to 22 hrs/day, trays typically changed about weekly (provider-directed)
Spec sheet
Start method
Taken by the dentist in the practice: an intraoral scan (3Shape, iTero, Cerec or STL files accepted) or PVS impressions, with x-rays and photos; there is no at-home kit.
In-office 3D digital scan or impression at a treating orthodontist or dentist; the doctor plans the case in uLab's uDesign AI software
Material
Zendura FLX, a dual-shell material (hard outer shell, elastomeric middle layer), 0.76 mm (0.030 in), per 6MS; the FDA summary describes a thermoformed polyurethane-polyester composite.
Reva thermoforming material (uLab): marketed as 17% thinner per aligner than leading brands, BPA- and phthalate-free, with an anti-glare satin finish, smooth trimline, hi-resolution 3D print and laser-engraved ID
Retainers
Not included in the patient tray kit; the dentist orders removable retainers from 6MS after treatment and sets their price
uSmile retainers available through the provider; after an initial in-office fit, replacement retainers can ship direct to the patient (uDesign 7.3 or later), with custom office-branded cases
Whitening
Not published
Not published
Refinements / touch-ups
Up to 2 refinements within 2 years are included in the 6MS Invisible Aligners product (aligner page); a no-charge upgrade to a braces solution is offered to the dentist if braces would produce a better outcome.
Doctor-facing: since June 2023 uLab's pricing sets a per-patient total case backstop that the practice will not exceed, so aligners beyond it (including refinements) add no lab cost; any patient-facing refinement policy is set by the treating practice
Guarantee
No patient guarantee in the current terms: a limited warranty to the dentist covers defects in material and workmanship, not the outcome
Not published (patient-facing guarantee is set by the individual practice; uLab's assurance is the doctor-facing per-patient total case backstop)
Clinical oversight
In-office: a trained dentist examines, prescribes, fits and monitors; 6MS specialists prepare the plan, overseen by its orthodontists, and the dentist approves it
Doctor-directed: prescribed, fitted, and monitored in-office by the treating orthodontist or dentist through routine in-person visits
Financing
Set by each practice
Not published (patient payment plans are set by the treating practice; uLab does not run consumer financing)
HSA / FSA
The brand's cost page says HSA or FSA accounts can help offset the cost; acceptance is the practice's decision
Generally HSA/FSA eligible as orthodontic treatment; depends on the provider and plan
Insurance
Some dental plans may cover part of treatment (brand's cost page)
Often covered under orthodontic benefits; coverage varies by plan and provider
Availability
United States and United Kingdom through trained dentists (the company says its providers are in over 50 countries, without separating braces from aligners)
United States, Canada, Australia and New Zealand, through uLab-authorized orthodontists and dentists
Headquarters
Carrollton, Texas, United States
Memphis, Tennessee, USA (US aligner manufacturing and current HQ; founded 2015 in Silicon Valley, California)
Spec sources
  1. 1.6monthsmiles.com
  2. 2.6monthsmiles.com
  3. 3.6monthsmiles.com
  4. 4.6monthsmiles.com
  5. 5.6monthsmiles.com
  6. 6.6monthsmiles.com
  7. 7.6monthsmiles.com
  8. 8.6monthsmiles.com
  9. 9.6monthsmiles.com
  10. 10.6monthsmiles.com
  11. 11.api.fda.gov
  1. 1.ulabsystems.com
  2. 2.prnewswire.com
  3. 3.ulabsystems.com
Company
On the market since
2019
2020
Parent company
Xplora USA LLC, doing business as Six Month Smiles, Carrollton, Texas, United States
uLab Systems, Inc. (privately held, founded 2015 by Charlie Wen and Amir Abolfathi)
  • FDA safety
  • Specs
  • Sources
  • Where to get it
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  • vs uLab (this page)

    • All 19 comparisons with uLab

    • vs Alineadent
    • vs Angel Aligner
    • vs Clarity Aligners
    • vs ClearCorrect
    • vs ClearPath
    • vs Dandy Clear Aligners
    • vs Glidewell Clear Aligners
    • vs Graphy
    • vs Invisalign
    • vs K Clear
    • vs Motto
    • vs Orthocaps
    • vs OrthoFX
    • vs OrthoSnap
    • vs Six Month Smiles (this page)
    • vs Smile Academy
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    • vs Spark
    • vs SureSmile