Oily Hair
Oil is secreted from the sebaceous glands in the scalp. It is actually vital, as without it our hair would be dry and brittle - think of it as a lubricant that puts some moisture on the hair. However, some people suffer from excess oil, and this can be a result of many things such as bad diet, lack of exercise, hormones, puberty and sometimes medication. The result is that the sebaceous gland goes into overdrive and produces more than is needed, but there are ways to help slow it down.
Hot water tends to stimulate sebaceous glands, so when shampooing always use tepid or even cold water. Massage also over-stimulates the glands, and no matter how much you really want to scrub the scalp to get it clean, it is the worst thing you can do. Wet the hair and apply shampoo for oily hair, but use the flats of your hands, not the fingertips, to lightly rub the shampoo in, to avoid stimulating the glands unnecessarily. Another trick is to leave the shampoo on the hair for 3 to 5 minutes. This allows it to penetrate and clean the hair itself.
When using hair conditioner, if you have dry ends make sure to use the smallest amount and do not get it anywhere near the scalp, as it will just make the hair oily even more quickly than usual. There are other alternatives such as leave-in conditioners, which are a lot easier to apply to just the ends of the hair, and are often lighter in formula.
Dry or Sensitized Hair
Dry hair can tangle easily, especially when it is dry or sensitized, so when shampooing try not to make it even easier for the hair to tangle. You can rub the scalp firmly, but put your fingers into the hair and rotate the finger ends as opposed to moving the whole hand and fingers. A really invigorating scrubbing motion is to be avoided, as this will know the hair.
On long hair always 'smooth shampoo', as long hair tangles easily and is hard to comb out afterwards. Smooth shampooing is like stroking the hair from root to tip in a massaging motion. You can work the shampoo in, but always work in the direction of growth to reduce knotting. Again, leaving the shampoo on the hair allows it to penetrate and cleanse, removing dirt from the hair itself.
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