bovine collagen + lidocaine

**Bovine collagen + lidocaine** refers to a combination injectable or topical product containing purified bovine (cow-derived) collagen as a structural biopolymer and lidocaine as a local anesthetic. **Bovine collagen** serves as a temporary scaffold for tissue augmentation (especially for soft tissue/facial wrinkles, scars, or wound healing) by providing structural support and stimulating endogenous collagen production, while **lidocaine** blocks voltage-gated sodium channels to provide local anesthesia and reduce pain during or after administration. This combination is primarily used in aesthetic medicine for soft-tissue augmentation (like nasolabial fold correction) and sometimes for wound or ulcer management. Bovine collagen products generally require pre-administration skin allergy screening, as a minority of patients (~3%) will show hypersensitivity[6]. Lidocaine is added specifically to improve patient comfort during administration[1][6]. This combination is distinct from porcine or marine collagen combinations, which have different immunogenicity profiles and approval statuses.