Courier Archives - Sensitivity Check USA Warning: include(/customers/6/d/b/sensitivitycheck.co/httpd.www/wp-content/themes/tyi-child-theme/country-select/lang.php): Failed to open stream: No such file or directory in /customers/6/d/b/sensitivitycheck.co/httpd.www/wp-content/themes/tyi-child-theme/functions.php on line 299 Warning: include(): Failed opening '/customers/6/d/b/sensitivitycheck.co/httpd.www/wp-content/themes/tyi-child-theme/country-select/lang.php' for inclusion (include_path='.:/usr/share/php') in /customers/6/d/b/sensitivitycheck.co/httpd.www/wp-content/themes/tyi-child-theme/functions.php on line 299

How much should the hair sample postage cost?

When you send your samples to us, please remember to attach the correct postage amount to your envelope or outer wrap. If you do not attach the correct postage, the samples may not reach our testing lab. Therefore, you may need to resend your samples to us again using...