I'm not a Black dermatologist, barber, or hairstylist, but I can still provide some general advice based on widely recognized hair care practices. When it comes to shampooing textured hair, it's usually best to keep it to a minimum to avoid stripping the hair of its natural oils. Most experts suggest shampooing once a week or every other week, focusing on cleansing the scalp rather than just the hair. Always follow up with a conditioner to help maintain moisture, and consider using a deep conditioner at least twice a month. For natural hair, the routine can be pretty similar. The key is to be gentle and focus on maintaining hydration. Shampooing once a week is usually enough, and like with textured hair, it's important to concentrate on the scalp to prevent buildup. Conditioning should be part of every wash day; and for extra care, a leave-in conditioner or weekly deep conditioning can help keep your hair healthy and hydrated. Overall, remember that less is often more with natural hair, and finding the right balance for your specific hair type is crucial.