Data

Price, pack size, seller status and check date for SkinPen, Dr. Pen, Dermapen and four more brands, from brand stores, FDA records and sellers.

What manuals and FDA clearances for six device brands put in writing about fitting a cartridge to a system, and what the registry settles.

Which of six aesthetic device brands carry a catalog number in the FDA registry, what that number encodes, and what each record leaves empty.