# Waterdrop Peptide > Diluent vial and laboratory-pack information for B2B buyers. ## Company - Legal seller: Hebei Meilan Biotechnology Co., Ltd. / 河北美岚生物科技有限公司 - Location: Shijiazhuang, Hebei, China - Contact: sales@hengyuepeptide.com ## Start here - [Diluent routes](https://waterdrop.pepteora.com/diluents): bacteriostatic water, water for injection and acetic acid water categories. - [Pack formats](https://waterdrop.pepteora.com/pack-formats): 3 ml and 10 ml pack questions. - [Label guide](https://waterdrop.pepteora.com/label-guide): fields, language and proof ownership. - [Documentation](https://waterdrop.pepteora.com/documentation): exact product and lot request route. ## Boundary The site does not duplicate the cosmetic-ingredient knowledge library. It does not provide personal-use, dosing, clinical or regulatory instructions. Updated: 2026-11-13