This may help

8.8. 8.8 is the primary DNS server for Google DNS. Google DNS is a public DNS service that is provided by Google with the aim to make the Internet and the DNS system faster, safer, secure, and more reliable for all Internet users.

With this, you do not need VPN to access iherb.

Happy Buying!

iHerb site block and I tested Google DNS. It was working
1. Go to the Control Panel.
2. Click Network and Internet > Network and Sharing Center > Change adapter settings.
3. Select the connection for which you want to configure Google Public DNS. For example:

To change the settings for an Ethernet connection, right-click the Ethernet interface and select Properties.
To change the settings for a wireless connection, right-click the Wi-Fi interface and select Properties.
If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

4. Select the Networking tab. Under This connection uses the following items, select Internet Protocol Version 4 (TCP/IPv4) or Internet Protocol Version 6 (TCP/IPv6) and then click Properties.

5. Click Advanced and select the DNS tab. If there are any DNS server IP addresses listed there, write them down for future reference, and remove them from this window.

6. Click OK.

7. Select Use the following DNS server addresses. If there are any IP addresses listed in the Preferred DNS server or Alternate DNS server, write them down for future reference.

8. Replace those addresses with the IP addresses of the Google DNS servers:

For IPv4: 8.8.8.8 and/or 8.8.4.4.
For IPv6: 2001:4860:4860::8888 and/or 2001:4860:4860::8844.
For IPv6-only: you can use Google Public DNS64 instead of the IPv6 addresses in the previous point.
9. Test that your setup is working correctly; see Test your new settings.

10. Repeat the procedure for additional network connections you want to change.

and currently Skynet service is good for receiving the items.