can a candle co-packer also handle private label packaging and labels

Many candle co-packers offer full turnkey service including label application, shrink-wrap, outer case packing, and sometimes white-label vessel sourcing. Others are pour-only and expect you to supply finished vessels and printed labels. Clarify scope before signing. On AJ Cosmo Labs you can specify full-service or pour-only in your brief so matched partners already know your packaging expectations.