You can request a FREE sample of Vetz Petz Antinol from the website here. The free sample includes 14 days of nutritional supplement for your dog. This supplement has been proven to work fast at treating your dog’s joint health. Antinol is also 100% safe and natural without any side effects. As mentioned before, the sample is free. You just pay the $4.95 for shipping and handling. The sample should be delivered in about 6 to 9 weeks from the time you sign up.