Tag: cosmetic formulations

Moisture Retention of Glycerin Solutions with Various Concentrations: A Comparative Study

This 2022 study evaluated the moisture-retention capacity of glycerin solutions at concentrations ranging from 0% to 100% using gravimetric analysis, transepidermal water loss (TEWL) assessment, and differential scanning calorimetry (DSC). Results indicated that moisture retention improved with increasing glycerin concentration up to 60%, with minimal weight change observed between 60%

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Green tea and red light–a powerful duo in skin rejuvenation

This study explores the combined effects of green tea and red light therapy on skin rejuvenation. Participants who applied green tea to their skin for 20 minutes daily followed by red light therapy with a central wavelength of 670 nm showed significant improvements in skin texture, reduction in wrinkles, and

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