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Moisture Loss: Excessive heat can strip the hair of its natural moisture, leaving it dry and more prone to breakage. Curly hair tends to be naturally drier, so heat can exacerbate this issue and lead to frizz and brittle strands.
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Protein Denaturation: High temperatures can disrupt the protein structure of the hair, leading to weakened and damaged strands. This can result in increased frizz, reduced elasticity, and loss of curl definition.
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Loss of Natural Oils: Heat styling can cause the natural oils produced by the scalp to evaporate, leaving the hair deprived of its essential oils. These oils play a key role in keeping the hair moisturized, conditioned, and protected.
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Altered Curl Pattern: Heat can alter the natural curl pattern of curly hair. It can temporarily straighten or loosen the curls, making them appear less defined and more prone to frizz.
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Heat Damage Build-up: Continuous and excessive use of heat styling tools, such as flat irons and curling irons, can lead to irreversible damage over time. This damage can accumulate and make the hair more vulnerable to breakage, split ends, and overall poor hair health.
To maintain healthy and vibrant curls, it is generally recommended to minimize the use of heat styling tools and opt for heat-free styling methods that promote moisture retention and preservation of the hair's natural texture.