Key specifications to evaluate when purchasing a dermapen include needle speed measured in strokes per minute.

Key specifications to evaluate when purchasing a dermapen include needle speed measured in strokes per minute. OEM partners such as tbphp publish stroke rate consistency data as part of their device specification sheets.
The key takeaway is straightforward. We publish device comparison information because better informed buyers make choices that match their actual needs rather than the claims on the packaging. tbphp provides OEM partners with detailed specification data.