How we choose
What a product needs to be included
- Hardware with identifiable model
- Bit shank/fit stated
What we exclude
- Gels, acrylics and other chemicals
- Health or hygiene guarantees
- Universal curing-compatibility claims
Claims we do not make without specific evidence
- No gels, acrylics or chemicals
- No health or hygiene guarantees
- No universal curing-compatibility claims
Evidence labels
- Tested by us
- A named person used the exact product and variant and recorded the method, dates, results and limitations.
- Research-based analysis
- We compared published information from several sources without testing the product ourselves.
- Manufacturer specification
- The figure comes from the maker's documentation and has not been independently checked.
- Seller claim
- The figure comes from a marketplace listing and has not been independently checked.
- Independent source finding
- A named third party published the finding; we attribute it rather than repeat it as our own.
Prices
Articles do not contain prices. Where a price is shown, it is the merchant's quote for the shipping destination you chose, with the time it was checked; it disappears when it is no longer current. The price at checkout can differ.
Commissions and editorial choices
We may earn a commission from qualifying purchases. Commission rates do not decide which products we recommend, and any paid placement is labeled as such.
Dates
"Editorially reviewed" dates change only when someone re-checks the article. Price checks do not change them.