Discover 7 common hair care and lifestyle habits that cause an itchy, flaky scalp. Expert tips from Dr. Vanita Rattan on preventing dandruff and hair loss.

A healthy scalp can be subtly undermined by routine hair care and lifestyle choices, which many of us choose to ignore. Ignored habits can cause the scalp to become dry and itchy. Examples include skipping hair washing days, using excessive amounts of dry shampoo, and even the styling products we use.

Dr. Vanita Rattan, the founder of a skincare line and a Global Skin Doctor, provides expert advice on how to control hair loss and restore balance, as well as a breakdown of seven typical daily habits that can result in an itchy, flaky scalp.

Ignoring the days for washing

Stretching the time between washes can occasionally become enticing when you’re exhausted or busy. An itchy, flaky scalp can be caused by skipping too many hair wash days, even though it can help retain the hair’s natural oils. Dead skin cells, perspiration, and oil begin to build up, which fosters the growth of Malassezia, the yeast that causes dandruff.

In addition to causing discomfort, residue from styling products can block follicles and trap bacteria, making dandruff and odor worse. Choose an anti-dandruff shampoo with mild sulfates to prevent stripping the scalp and find a hair wash regimen that works for your scalp type. While dry or curled hair may benefit from less frequent cleaning, oily scalps may require occasional washing.

Excessive use of dry shampoo

When you’re pressed for time, dry shampoo could provide a temporary fix, but excessive use can cause the scalp to become dry. These portable powders and sprays absorb too much oil, so using them excessively for days at a time might deprive your scalp of the moisture it needs to remain healthy and effective. Excess product can also combine with dead skin and oils to create tiny, white flakes that resemble dandruff and are frequently itchy.

A buildup of products may also clog the follicles, causing inflammation and a decreased rate of hair growth. I suggest staying away from dry shampoo and only applying it when absolutely need. Instead, make a commitment to washing your hair properly every two to three days utilizing your entire hair range to allow your scalp to rest.

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Hairstyles that are tight

Your scalp may experience undue strain if you frequently pull your hair into tight buns, braids, and ponytails. Inflammation of the follicles and restriction of normal blood flow due to mechanical stress can result in discomfort and irritation, which may lead to frequent itching of the scalp. The scalp may dry out more quickly and the skin cells may flake off more visibly as a result of this practice, which also damages the scalp barrier and removes trapped dead skin.

Switch up your hairstyles and try letting it down more frequently. If you must wear your hair up, use soft, fabric-coated scrunchies rather than rubber bands to lessen pressure and friction.
Heat-related harm

High heat from curling irons, straighteners, and blow dryers can rapidly evaporate the natural sebum produced by the scalp, which typically keeps the skin hydrated and protected. Without natural oils, the scalp may become dry and tight, which will accelerate the shedding of dead skin cells and reduce the scalp’s capacity to retain moisture. Constant itching may make flakes more noticeable since dry, exposed skin is more likely to get irritated.

Applying heat protectants, like strand-strengthening oil, before using any heat styling tools is therefore advised, and heat styling should be restricted to a few times per week. For added protection, use a microfiber towel and then allow your hair to air dry.

Buildup of products

Styling gels and creams can build up over time, particularly if regular hair washing is neglected or postponed. This sticky coating is the perfect environment for Malassezia to grow because it holds perspiration, grime, and residual products closer to the scalp. By breaking down the excess oils caused by accumulation, the yeast feeds on the scalp’s natural defense mechanism, inflammation, and produces irritant byproducts.

The outcome is the itchy flakes linked to seborrheic dermatitis or dandruff, which are caused by excess dead skin cells flaking off. Select a shampoo that doesn’t have any scent to prevent hurting your scalp further, and add a weekly scalp exfoliator to your regimen for a consistent thorough clean.

Products with fragrances

Shampoos, conditioners, and other hair care products with strong fragrances can have an upscale scent. On the other hand, denatured alcohol and artificial perfumes may cause allergic reactions or irritation. This is because the scalp has a higher concentration of sebaceous glands and a thinner barrier, which makes it more sensitive. The scalp naturally overcompensates when it is irritated by creating more oil and shedding more dead skin cells, which can result in dryness and oily roots.

Making the switch to “NAFE SAFE” products—which exclude denatured alcohol, fragrance, and essential oils—is always preferable because they are recognized irritants that can cause contact dermatitis, which affects 3-4% of the population.

Ignoring aspects of lifestyle

There’s more to your scalp’s health than what you put on it. In actuality, lifestyle factors such as stress management and food choices also have an impact. Your scalp may be deprived of vital nutrients required for oil balance and healing due to a bad diet. For example, inadequate intake of zinc, vitamins, and fatty acids can interfere with the synthesis of sebum.

Meanwhile, the scalp may feel tight and itchy all the time due to dehydration, which can also weaken the barrier and alter moisture levels. As a result, make sure to consume eight glasses of water or more each day. Chronic stress and sleep deprivation can also slow down the process of cell renewal, making the scalp more vulnerable to dryness, flaking, and occasionally even psoriasis and scalp dermatitis brought on by stress.