About Moisturizer December 22, 2021Yeongkwon Son What Is Moisturizer? A moisturizer is a topical treatment that reduces the symptoms of dry skin and makes rough skin feel smoother. Key role of moisturizers are to trap water...
pH balance of skin May 28, 2020Yeongkwon Son What is pH? It refers “potential of hydrogen” in water solution. The scale of pH runs from 0-14. pH<7: Acidic pH7: Neutral pH>7: Alkaline What is the optimal pH...