Utilizing analytical chemistry methodologies, this study demonstrates that Shea butter significantly improves the skin's natural barrier function by replenishing essential lipids. The high concentration of fatty acids, specifically stearic and oleic acids, works to seal in moisture and drastically reduce transepidermal water loss (TEWL). Ultimately, the research confirms that Shea butter's unique chemical composition makes it an exceptional natural ingredient for increasing skin elasticity and treating clinical dryness.     

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