The first time you link your credit or debit card to your Paypal account, Paypal charges a small amount in your card, about 1$, depending on your country and currency. This charges are made by Paypal and not by Skinography, as a normal procedure for credit card authentication.
Paypal makes additional charges in your credit card to verify its authenticity. As of Paypal policies, this charges will be completely refunded in a few days.
Please, take into account that this charges are part of Paypal policies, and have not been made by Skinography, and Skinography can't manage them, nor provide additional customer support about them. You will identify the charges made by Skinography because they will appear named as "SKINOGRAPHY" in your bank account. These are the charges related to your purchased services at Skinography, and not the ones named as "PAYPAL".
Paypal also gives you detailed information about its credits card verification procedures here: https://www.paypal.com/es/cgi-bin/helpweb?cmd=_help
You can also ask Paypal directly here: https://www.paypal.com/es/cgi-bin/helpscr?cmd=_help&t=escalateTab
Please, contact Paypal if you have any questions or problems about this charges.