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What causes dry scalp?
Dry scalp can be caused by several factors, including:
Environmental factors: Cold weather, low humidity levels, and exposure to dry air can strip the scalp of its natural moisture, leading to dryness.
Overwashing or using harsh shampoos: Washing your hair too frequently or using shampoos that contain harsh ingredients can strip away the natural oils that moisturize the scalp, causing it to become dry and irritated.
Hot water: Washing your hair with hot water can strip the scalp of its natural oils and contribute to dryness. It is better to use lukewarm or cool water when washing your hair.
Improper hair care routine: Using excessive heat styling tools (such as hair dryers, curling irons, or straighteners), overusing hair products, or using styling products that contain alcohol can dry out the scalp.
Skin conditions: Certain skin conditions, such as seborrheic dermatitis (a common condition causing red, flaky skin) or psoriasis (an autoimmune condition causing itchy, scaly patches), can affect the scalp and lead to dryness.
Underlying health conditions: Dry scalp can sometimes be a symptom of an underlying health condition, such as hormonal imbalances, nutritional deficiencies, or certain autoimmune disorders.
Allergic reactions: Some people may develop a dry, itchy scalp as a result of an allergic reaction to hair products, including shampoos, conditioners, or hair dyes.
Scalp sensitivity: Some individuals naturally have a more sensitive scalp, making them more prone to dryness and irritation.
It’s worth noting that dry scalp and dandruff are two distinct conditions. While dry scalp is characterized by a lack of moisture and dryness, dandruff is associated with the overgrowth of a yeast-like fungus called Malassezia on the scalp, leading to flaking and itching.