The invisible ink pen is a pen with integrated UV light that uses transparent ink. Because they are often sold as "toys" to children, the button-type batteries which provide power for the UV light may touched by children. Only the products which have integrated UV light or black light are restricted. The products with separate UV light or black light are not eligible. The invisible ink pen products which have a separate UV light or black light are not restricted.
All invisible ink pens not meeting toy standards, but being offered as toys, are restricted for sale on Amazon. Invisible ink pens not being marketed as toys and being offered outside of child-related categories are OK for sale.
The sale of all products of this product type on the Amazon website must meet specified certification standards. To sell these products on Amazon, you must apply by submitting the following information and documents to this email address:
Documents per ASINs (please include the ASIN in the file name of the documents).
One of the following documents that prove your product was tested according to the standard requirements by a laboratory: ST(JP), ASTM F963, EN 71 OR EN 62115, GB 19865(CN), AS/NZS ISO 8124,etc.
The Consumer Product Safety Commission (CPSC) provides guidance for businesses on how to comply with these requirements.