No. Using deep conditioners overnight can over-condition your hair. Deep conditioners are specially formulated for extra hydration and should be left on your hair for not more than 30 minutes.
Try a hair mist.
You can simply spray water into your hair or spray on a hair mist (DIY or shelf stuff). Use your fingertips to massage the moisture into your scalp and onto your strands. Leave-in conditioner should be your everyday hair product, especially if you're dealing with dry, brittle strands.
Try coconut oil
Coconut oil is a natural emollient. That means that it fills in the gaps in your hair strands if they've been damaged by heat or the sun.
"You can use dry shampoo to lengthen the time in between washes, to absorb sweat after workouts or to just refresh hair for a 'fresh-styled look' without the hassle of getting hair wet and blow drying it."
One of them is a lack of biotin. Biotin, also known as vitamin B7, helps the body convert food into energy. A deficiency in biotin is very rare, but when it occurs, brittle, thinning, or splitting hair and nails are some of the most noticeable symptoms.
Some causes of dry hair are: Excessive hair washing, or using harsh soaps or alcohols. Excessive blow-drying. Dry air due to the climate.
Our skin glands produce less sebum making our tresses feel perpetually dry. Having low hair porosity or even high hair porosity and using the wrong products can also contribute to having dry hair, even when using a conditioner. Low porosity hair is hard to hydrate while high porosity hair loses moisture easily.
#1 Only use on wet hair.
Since water is the only thing that can TRULY ADD MOISTURE, you have to add that first before applying any oil or cream. If you don't add water, the moisturizer just sits on top of your dry hair. It's not being absorbed.
According to Garodia, oil helps strengthen the hair shaft, especially in case of frizzy and dry hair. It's most beneficial when the oil is left in the hair overnight.
The continuous stress of wetting and drying can even lead to breakage. Sleeping with deep conditioner on the hair puts you at risk of damage in the form of hygral fatigue, because there is too much moisture penetrating the hair shaft.
People with very dry hair do not need to wash their hair daily, or even every other day. Instead, washing the hair less often will help preserve the natural oils in the scalp and keep hair well moisturized. Washing their hair weekly or even every other week might be enough for people with very dry hair.
Biotin. Biotin is an essential B vitamin (meaning we need to consume it daily) that's known to be important in hair and nail growth. "When patients have a biotin deficiency, they suffer from thinning, dry hair, and dry skin," says Zeichner.
using heat-based drying and styling tools too frequently. shampooing too often. using a shampoo with harsh ingredients, such as sulfates, that are drying for your type of hair. not using a conditioner often enough or one that's designed for your type of hair.
The Hair Diet
Your hair craves healthy fats! So eat plenty of avocados, salmon, and olive oil. These foods are jam-packed with essential fatty acids, which can moisturize a dry scalp with natural oils.
An olive oil and coconut oil mask is the best concoction for high gloss shine, Abramite says. Both are natural emollients that keep hydration in the hair so it can remain smooth, soft and shiny. Combine olive oil and coconut oil.
A conditioner is used as a final step in the hair washing stage to lock in moisture, add shine, protection and detangling agents. In short, sleeping in a conditioner overnight in excess is not recommended for your hair or even necessary.