Understand that keratin is a biological substance that provides strength to hair, skin, and nails. Keratin can be strengthened through vitamins and a healthy diet.
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Beauty Treatments
Know that keratin is commonly mentioned in beauty and hair care, often implying strengthening or smoothing effects. She got a keratin treatment to smooth her frizzy hair.
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Animal Importance
Remember, keratin is also important in animals, forming claws, beaks, and feathers. A bird's beak is strong because it's made of keratin.