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Serum contains all proteins except clotting factors (involved in blood clotting), including all electrolytes, antibodies, antigens, hormones; and any exogenous substances (e.g., drugs, …

Nov 13, 2025 · Serum is the fluid component of blood that remains after the clotting process, serving as a dynamic biological sample for medical analysis. It is a yellowish, clear liquid …

Jan 30, 2026 · We tested the best hydrating serums of 2026 for dry, dull skin and consulted experts to determine which are worth your money. Shop 7 editor-tested products, here.

Jun 11, 2025 · Beyond a skin care routine that includes a gentle face wash, moisturizer and broad-spectrum SPF lotion, using facial serums can help support skin. Serums are …

Oct 22, 2025 · “Serums are like espresso shots for your skin: highly concentrated and designed to deliver a potent dose of active ingredients right where they are needed most,” says Mona …

Shop face serums and treatments at Sephora. Find products specifically formulated to target skin concerns like aging, acne, dark spots and visible pores.

Made with chemicals safer for human health and the environment. Manufactured using processes that reduce the risk of negative environmental impact. Manufactured on farms or in facilities …

Jul 30, 2025 · Typically a step between your toner and moisturizer, this lightweight layer serves as a vehicle to deliver powerful active ingredients, such as vitamin C and hyaluronic acid, to the skin.

A serum is a concentrated liquid treatment that delivers topical ingredients to the skin in order to target concerns like wrinkles, discoloration and uneven texture.