The Three Worst Times to Wash Your Hair: How to Avoid an Itchy, Flaky Scalp and Keep Your Locks Intact

Washing your hair early in the morning can affect your scalp, leading to dryness and itching.

2. Late at Night

Washing your hair late at night, especially if it doesn’t dry completely, can lead to scalp inflammation and hair loss. When hair is wet, the cuticle is not fully closed, making it weak and prone to breakage when it rubs against your pillow. Additionally, the moisture in your hair provides an ideal environment for bacteria and fungi to thrive, causing itching and scalp infections. Late-night hair washing also impedes blood circulation to the hair follicles, impacting hair growth. To protect your hair, make sure to thoroughly dry it before going to sleep and avoid washing it too late.

3. Before Going Out

Washing your hair before going out, especially if it’s still wet, can weaken your hair and make it prone to breakage because the cuticle is not entirely dry. Sudden temperature changes cause scalp blood vessels to contract, reducing blood flow to the hair follicles and impacting hair growth. Open pores after washing also make it easier for dirt and bacteria to enter, leading to scalp inflammation. Additionally, exposing damp hair to wind and dry air can cause moisture loss, making your hair dry and brittle, increasing the likelihood of hair fall. To protect your hair, ensure it is completely dry before stepping out.

Before going out, if you wash your hair and it remains damp, it creates a favorable environment for dirt and bacteria to cling to your scalp.

The ideal time to wash your hair is 1-2 hours before bedtime.

Given that most people lead busy lives and may not have the time to wash their hair earlier in the day, the ideal time becomes 1-2 hours before bedtime. If you prioritize your health, aim to finish washing and showering before 9 PM to avoid the cold air affecting your body.

Notes on Hair Washing

1. Maintain a water temperature of 37-40 degrees Celsius

If the water temperature is too high, it can damage the natural oils on your scalp, which is detrimental to maintaining a healthy scalp and hair. On the other hand, very low water temperatures can cause severe blood vessel contractions and headaches. A temperature of 37-40 degrees Celsius is closest to the human body’s temperature and is ideal for hair washing.

Moderately warm water helps remove dirt and grime without stripping away natural moisture.

2. Avoid washing your hair too frequently

Washing your hair too often can damage it, making it dry and brittle. If you have an oily scalp, wash your hair every 1-1.5 days. For those with a dry scalp, washing every 3-4 days is sufficient to maintain the necessary moisture levels.

3. Wash your hair gently without scratching your scalp with your nails

Many people have the habit of scratching their scalp vigorously while washing their hair to ensure it is clean. However, this can cause scalp damage and even infections. Instead, use your fingertips to gently massage your scalp, removing dead skin cells and stimulating blood circulation.

4. Proper hair drying techniques to prevent damage

After washing your hair, use a towel to dry it before reaching for the hairdryer. Choose a low-temperature setting to minimize hair damage, and maintain a distance of 15-20 cm between the hairdryer and your hair. If you want softer and smoother hair, stop drying when your hair is about 80% dry, leaving a bit of natural moisture.

Proper hair drying techniques can make your hair shinier and smoother.

5. Ensure an ideal room temperature when washing your hair

The ideal room temperature for hair washing is 22-25°C to prevent cold air from affecting your scalp. Additionally, choose a place away from air conditioner vents or windows. For the elderly, remind them not to wash their hair for too long and to dry it immediately afterward to maintain their health.