Human skin, including scalp skin, prefers to be in the middle of the pH scale, somewhere between 5 and 6.8 on the pH spectrum.
This is considered balanced between alkali (base) and acidic. Most shampoos and conditioners leave the hair and scalp skin in an alkali state, so sometimes something acidic (in a very, very diluted form) may need to be applied (never ever apply an undiluted form of natural acid) to help move the pH of scalp skin back to the center point from alakali (or base). Viable natural ways to impart this is lemon juice or lime juice or a vinegar. All should be diluted well in a LOT of water and then applied as a rinse that is subsequently rinsed out either after
shampooing or after conditioning (conditioning usually follows shampooing). It is recommended that Blondes use white vinegar to avoid hair being darkened over time although it''s noted that apple cider vinegar contains malic acid which is friendly for acid mantle health. Do not use flavored or balsamic vinegars (balsamic has sugar in it). This practice may assist those who have itchy scalps, depending on the cause for the itchiness.
Buildup is when the hair has a tacky feel to it, a kind of gumminess, and the conditioner choice seems to work less well, and the hair may also be more tangly. Buildup is common over time and derives from minerals from water and/or products not being able to be washed off in a normal shampoo procedure, and to remove it one may need to conduct a Clarify hair wash, that is, a shampoo that clarifies. Be sure to condition well after any clarifying product is applied to the hair (it''s just like shampooing) to replace what''s been removed. Clarifying removes all things on the surface of the hair strands essentially leaving the hair without moisture. If one fails to condition as part of a clarify hair wash process, the hair will be a kind of delicate feeling, possibly fly away and dry or a kind of brittleness to the hair.
It is recommended to use anti-
dandruff shampoos with care; they are more aggressive, can make hair less lively, irritate the scalp, and can actually increase the production of dandruff. Note the active ingredient in the dandruff shampoo as different active ingredients may address the problem better or less so. Nizoral shampoo is a product to consider for its active ingredient choice and also that it does not dry out the hair as other dandruff products might cause. (There are two versions of Nizoral: one is Over The Counter (OTC), and one is prescription strength. This shampoo is sometimes used in combination with any medication to remove bacterial infections off the scalp skin.) Dandruff, despite common belief, is more often related to too much, or an issue somehow with, sebum production and not dry scalp skin. Not all flakes are dandruff, so do consult with a qualified physician to determine not only that one indeed does have dandruff; but also, what type of dandruff one may have. If one is experiencing redness of the scalp skin, bumps on the scalp skin, and any weeping from sores and/or bleeding in addition to flakes, professional medical diagnosis should be sought.