Sequence Pure is a USA-based supplier of premium research peptides focused on purity, transparency, and scientific integrity. Every product undergoes independent third-party laboratory testing, with Certificates of Analysis (COAs) available for download and verification. Each vial features a QR code for instant authenticity checks. With 99%+ purity standards, carefully vetted manufacturing partners, and free shipping on orders over $200, Sequence Pure serves researchers who demand consistency and reliable documentation for laboratory use only.