Based on the provided reviews, the Hyaluronic Acid Fresh Sun Serum by IsNtree is a chemical sunscreen. This conclusion is drawn from the frequent mentions of the product's lightweight, non-greasy texture, and its ability to absorb quickly without leaving a white cast—characteristics more commonly associated with chemical sunscreens. Mineral sunscreens, on the other hand, typically contain zinc oxide or titanium dioxide, which often leave a white cast and can feel heavier on the skin. Here are some specific points from the reviews that support this conclusion: - Many reviewers mention the product's "lightweight" and "non-greasy" texture, which are typical of chemical sunscreens. - The absence of a white cast is frequently highlighted, another common trait of chemical sunscreens. - Some reviews mention the product's "serum-like" consistency, which is less common in mineral sunscreens. However, it's important to note that the product description or packaging might explicitly state whether it is chemical or mineral. If you have access to this information, it would provide a definitive answer.

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