PETG shrink sleeves serve dual roles in pharmaceutical packaging: tamper-evident shrink bands and shrink seals on OTC medicine bottles and supplement containers, plus full-body sleeves for vitamin bottles and health product packaging. PETG's controlled shrinkage performance enables clean perforation tearing for tamper-evident indication, while full-body sleeves accommodate dosage instructions, barcodes, and brand identity in compact label real estate. CPET variant supports PET-stream recycling, meeting pharmaceutical industry sustainability requirements without compromising the tamper integrity required by global pharmaceutical regulatory frameworks.