When hair is rinsed with hot water to remove grease or other sticky particles, the excess temperature may cause the reverse effect. It may cause the sebaceous glands to produce more oil and the hair will appear more oily. Not to mention the damage and breakage to the rest of the hair. As well as fading your haircolor faster.
The sebaceous glands increase or reduce their secretions in order to maintain proper skin protection and pH. When the skin is regularly stripped of its natural sebum, the sebaceous glands respond with an overproduction. People observe that they “must” wash their hair, for example, once every other day, otherwise their hair becomes oily; however, their sebaceous glands have simply adapted to their hygienic cycle. Changes to the hygienic cycle result in changes to sebum secretion.
Using cold water as a final rinse can help close the scales of the cuticle, making the hair instantly more shiny and prevent tangles. Also it can help constrict the openings of the sebaceous glands to help moderate sebum production.
Does your hair get frizzy as it dries? Aggressive toweling may be the culprit.
After shampooing, squeeze moisture downwards from your hair your hands.
Pat your hair dry with the towel so it’s not dripping wet anymore or wrap a towel round your head to pick up the excess moisture, do not rub, never rub, it tangles the hair and causes the follicles to stand on end leaving it rough and easier to tangle and less shiny. Just absorb the worst of the water, 10 seconds or so should do it. Apply some leave-in conditioner and detangle with a wide-toothed comb .Blow-drying downward along the hair shaft will also help to smooth and seal the hair cuticle resulting in shiny, smooth hair.