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Lactic acid

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Lactic acid is an alpha hydroxy acid (AHA) derived from sour milk, though it can also be synthesized in a lab. It’s a popular ingredient in skincare products for its ability to effectively exfoliate the skin and improve its overall texture and tone. Lactic acid...

Lakes

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Lakes are insoluble pigments that are commonly used in a variety of beauty and cosmetic products. They are formed by combining a dye with an inorganic material, typically a metal salt or metallic oxide. The resulting pigments are known for their vibrant colors,...

Langerhans cells

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Langerhans immune cells, also known as Langerhans cells, are a crucial component of the body’s immune system. They are specialized cells that reside in the epidermis, the outermost layer of the skin, and play a vital role in protecting the skin from foreign...

Lanolin

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Lanolin is a waxy substance that is secreted by the sebaceous glands of sheep and primarily obtained during the wool-shearing process. It is a natural moisturizer that is often used in cosmetics and skincare products. Lanolin is also an emulsifier, which means that it...

Lanugo

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Lanugo is a soft, downy hair that is present on the body of a fetus. It usually begins to grow in the third trimester of pregnancy and disappears shortly after birth. Lanugo is thought to help protect the fetus’s skin from the amniotic fluid. In some cases,...