research PENGARUH VARIASI PROPILENGLIKOL TERHADAP FORMULASI DAN KARAKTERISTIK SEDIAAN HAIR TONIC EKSTRAK DAUN JAMBU AIR SEMARANG (Syzygium aqueum (Burm.f.))
This study found that variations in propylene glycol concentration in wax apple leaf extract hair tonic affected pH, specific gravity, and viscosity, aligning with SNI requirements.