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.
June 2025 in “Healthy-Mu Journal” The optimized Cinchonine gel effectively fights acne bacteria and is safe for twice-daily use.
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