Envy PDO Threads have long lasting effects (up to 2 years). With high tensile thread strength, there is less breakage and improved effects. Envy Threads is a local company based in Arizona and offers a catered VIP experience from sales to service, training, and post-sale support. This includes a WhatsApp group chat with other Envy Thread practitioners and trainers for questions and support. Marketing and social media advice and continuing education is also included. Check out the ENVY PDO Facial Threads Brochure Here! CONTACT US for questions and purchasing, (480) 430-7795