April 2025 in “Jurnal Inovasi Bahan Lokal dan Pemberdayaan Masyarakat” Varying propylenglycol affects the pH, specific gravity, and viscosity of wax apple leaf hair tonic, meeting Indonesian standards.
Different amounts of propylene glycol change the thickness of katuk leaf hair tonic.
The best mix of propylene glycol and sorbitol was found for a cream to prevent hair loss using saw palmetto extract.
The conclusion cannot be provided as the document content is not available.
June 2021 in “Journal of Pharmaceutical Care Anwar Medika” The hair tonic made from cayenne pepper leaf extract is physically stable and suitable for use.