Not every two days, not every four days: how often should you wash your hair, according to a dermatologist?

Experts consistently emphasize that proper scalp hygiene is the foundation of healthy, attractive hair. While personal routines may vary, most professionals agree that washing the hair between three and five times per week offers the best balance for the majority of people. This frequency supports scalp health, preserves the natural protective barrier of the hair, and prevents many of the most common hair and scalp issues.

The primary goal of washing is not only to clean the hair strands but also to maintain a healthy scalp environment. Throughout the day, the scalp produces sebum, an oily substance that protects the skin and hair. Along with sebum, sweat, pollution, dead skin cells, and styling product residue gradually accumulate. When this buildup is not removed regularly, it can clog hair follicles, trigger irritation, create unpleasant odors, and contribute to conditions such as dandruff or inflammation.

Dermatologist Alex Docampo directly addresses one of the most widespread myths about hair care, the belief that frequent washing increases oiliness. According to him, this assumption is completely false. Washing does not stimulate excess oil production. Instead, the scalp continues producing sebum according to genetic and hormonal factors, not washing frequency. What matters most is choosing appropriate products and adapting the routine to the specific needs of the scalp.

The recommendation of washing three to five times per week provides several benefits. First, it removes excess sebum and residue before it accumulates enough to cause irritation. Second, it improves follicle oxygenation, which is essential for strong and resilient hair growth. Third, it reduces the proliferation of fungi and bacteria that thrive in warm, oily environments. This is particularly important for people who exercise regularly, live in humid climates, or use styling products frequently.

However, no two scalps are identical. The Hair Surgical Institute highlights that washing frequency should be adapted based on hair type, scalp condition, daily activities, hairstyle choices, and cosmetic use. Someone with an oily scalp who exercises daily may require closer to five washes per week, while a person with a dry scalp and minimal product use may feel comfortable with three.

Spacing washes too far apart can create its own set of problems. Dr. María Marcos explains that excessive sebum accumulation may lead to itching, flaking, and inflammation of the hair follicle. This inflammation can temporarily weaken the hair root, sometimes resulting in noticeable shedding. Stress, hormonal changes, and genetic predisposition often worsen these effects, particularly in individuals with naturally oily skin.

Beyond frequency, the quality of hair care matters greatly. Selecting the right shampoo is essential. People with sensitive scalps often benefit from sulfate free or balancing formulas that cleanse without stripping natural oils. Conditioner should be applied only to the mid lengths and ends, never directly to the scalp, to avoid weighing down the roots or contributing to buildup. A nourishing hair mask once per week helps restore moisture, strengthen the fiber, and protect against breakage.

Cosmetic support can further enhance results. Products such as Apivita Royal Jelly Elixir are valued for improving shine and density, while Farma Dorsch Root Cover offers a convenient solution for concealing roots and gray hair without damaging the hair structure.

Daily habits also play a significant role in long term hair health. Avoid using very hot water, which can irritate the scalp and weaken the hair cuticle. Massage gently with the fingertips to stimulate circulation without scratching. Rinse thoroughly to remove all product residue. Never go to bed with wet hair, as moisture combined with friction increases breakage and scalp sensitivity.

When all factors are considered, maintaining a consistent routine and washing the hair three to five times per week remains the most balanced and widely recommended approach. This simple practice supports a clean scalp, healthier hair growth, improved appearance, and long term hair strength.