Apart from locking in moisture from your conditioner, closing your hair cuticles and pores with cold water will help to prevent grease, oil, and dirt from entering your scalp. In short, washing your hair with cold water can go a long way in helping to keep your hair hydrated and strong.
Using lukewarm water is best because it activates the cleansers in your shampoo while protecting your hair and scalp for your healthiest hair growth.
“Washing your hair with cold water helps with closing your cuticle after the wash. This also has the added benefit of helping, along with your haircare products, to make your hair look strong and shiny, and who doesn't want that?” says Hurel.
Cold water closes the hair cuticles and helps reduce frizz.
However, water that is too cold might make your hair dull and lifeless. Cold water may affect the hair volume and make it appear flat. It locks hair cuticles and binds the hair strands together.
Cold water is good for hair as it seals the cuticle back up and locks in the moisture from your conditioner. This leaves your hair looking extra hydrated, frizz-free and shiny.
No, water temperature has no effect on oil production or hair growth. In fact, cold therapy has been used for chemotherapy patients to prevent loss of hair.
Consider starting with warm water (100°F or 38°C), massaging the scalp with shampoo to get the excess dirt and oil off your hair. You may then rinse out the shampoo with lukewarm water and apply conditioner. Finally, you can wash off the conditioner with cold water and let it seal your pores!
Is 30 degrees a cold wash? No, a 30ºC wash is generally considered a warm wash. A cold wash is below 20°C and is usually reserved for clothes that are very delicate. Washing at 40ºC is also considered a warm wash, while 60ºC is a hot wash and 90ºC is a very hot wash.
Warm washing (40 degrees)
So, for every type of hair, it is suggested to remain below the 300-395 degrees threshold. Otherwise, you will burn away your beautiful strands. For thicker hair, the range of 300 to 375 is safe. While for thinner hair, remaining below 290 degrees Fahrenheit is ideal.
"There is no evidence or scientific data that cold water has an impact on hair growth," Longsworth said. "Instead, using properly pH-balanced products to wash and condition the hair is far more important.
If you have naturally thin hair, it may be best to cut down on cold showers. Now, you may think that cold water spells bad news for your hair, but you couldn't be more wrong, because cold water can actually make your hair shinier and reduce frizz.
Here's the truth: You can't change the size of your hair follicles. If you were born with fine hair, it's genetics, and no product will completely alter that. Of course, there are ways to maintain your hair health, add volume, and keep it from getting any thinner.
Get the water cold enough that you start to feel uncomfortable. Then, stay underneath the water for 2 or 3 minutes. Breathing deeply will help decrease your discomfort in your mind.
Steamy showers are relaxing, but they can also wreak havoc on your hair. Hot water melts away your natural hair oils, leaving it dry, brittle, and frizzy. Excess heat also lifts your hair cuticles, the outermost layer.
Harsh shampoo, hair treatments, styling products, and excessive brushing contribute the most to poor hair health. However, other culprits include: overconsumption of alcohol. low-calorie and crash diets.
Exposure to high heat changes the shape of your hair's keratin strands. Temperatures over 300°F convert the ⍺-keratin to β-keratin, which eventually leads to weaker hair that has lost its elasticity and become more prone to damage.
Damaged hair becomes brittle and breaks easily. Your hair might look dull and dry, and the appearance of split ends is more noticeable. It can also be challenging to get your hair to lie flat.