✅ Medical & Pharmaceutical Use
Sterile ointments (antibiotic creams, wound care).
Why? Prevents contamination from fingers or air.
✅ Multi-User or Public Settings
Spa/salon products, tester bottles in stores.
Why? Reduces cross-contamination risk.
✅ Water-Based Formulas
Aloe vera gels, hydrating mists.
Why? Less prone to mold vs. jars or open tubes.