Shampooing your hair once a week is important for several reasons:
Scalp Health: Regular shampooing helps remove excess oil, sweat, dead skin cells, and environmental pollutants that can build up on the scalp. This is essential for keeping the scalp healthy and preventing conditions like dandruff or seborrheic dermatitis.
Hair Growth: A clean, balanced scalp encourages a healthier environment for hair growth. Accumulated sebum, dirt, or product buildup can clog hair follicles, which may inhibit hair growth or exacerbate hair loss, especially in cases of androgenetic alopecia.
Hydration and Moisture Balance: Shampooing helps maintain a balance between natural oils and moisture. Shampooing too infrequently can lead to an overly oily scalp, while too frequent washing can strip essential oils, leading to dryness and breakage. Weekly shampooing helps strike the right balance, especially when combined with a good moisturizing routine.
Preventing Product Buildup: For people who use styling products, oils, or other treatments, shampooing once a week ensures that these products don’t accumulate on the hair and scalp, which can weigh hair down and make it dull.
Scalp Conditions: Those with scalp conditions like seborrheic dermatitis, which you experience, may benefit from regular washing to help manage symptoms and prevent flare-ups.
In your case, maintaining a clean scalp is particularly important for managing seborrheic dermatitis, chemical damage, and androgenetic alopecia.