Glossary · Formulation
What Is Humectant?
A humectant is an ingredient that attracts and holds water, drawing moisture into the upper layers of the skin or retaining it within the formula. Glycerin, hyaluronic acid, propylene glycol and sorbitol are common humectants, and they are normally combined with emollients and occlusives in a balanced moisturizer.
Why it matters when you source
A humectant-led product can feel tacky in humid conditions and insufficient in dry ones, so the ratio matters more than the headline ingredient. Ask what percentage is used — contains hyaluronic acid means little without a number.
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