Method1: Washing and Drying

1 Know when to wash. People often make the mistake of thinking that they need to wash their hair everyday, but washing hair too often can actually dry hair out, or weigh it down with product. For most people, washing your hair twice a week is adequate.

The longer, thicker, curlier, and more processed your hair, the longer it can go between washes.

If your hair gets oily very quickly and you must wash everyday, use a lightweight or "everyday" shampoo, as these contain milder detergents than others. Alternately, you can try soap nuts or use dry shampoo in between regular washes.

2 Use Conditioner. Always use a good conditioner after you shampoo. Conditioner will provide moisture for your hair, while making it softer and more manageable. It will also make your hair easier to brush out after the shower, thus causing less damage. Only apply conditioner to the ends and mid-lengths of your hair, otherwise your hair will look greasy.

Use a leave-in conditioner at least once a week. Leave-in conditioners penetrate deep into your hair cuticles to heal them more completely.
Try using a leave-in conditioner spray after you shower. The spray will make your hair more pliable and easier to detangle.
Every so often, try using a deep conditioning treatment. You can use deep conditioning treatments like olive oil, argan oil, avocado oil or coconut oil.

3 Use a comb. Wet hair is more susceptible to damage than dry hair, it is more elastic and more likely to break. Since hair is most fragile when it's wet, you shouldn't rip a brush through it after washing. Instead, you should spray some detangler on it, and then use a wide-tooth comb to remove tangles and minimize breakage.
Remember to start from the ends up, not from the roots down.
Once hair is dry, avoid unnecessary brushing, combing or handling.
Using your fingers to comb through your hair while wet can cause damage and hair loss. Make sure to wait until after your shower to comb out any tangles.

4 Buy shampoo and conditioners suited to your hair type. Pick a shampoo and conditioner combo for fine, greasy, dry or colored hair, and stick to it! No matter what type of hair you have, there’s a specialist product made to care especially for you.

5 Don't towel dry hair. As hair is more fragile when wet, roughly towel drying hair can cause damage. Rubbing wet hair with a towel can rough up the cuticle (outer layer of the hair), causing more breakage and leading to frizzy or fluffy hair.
Instead of rubbing, trying blotting your hair with a towel to remove excess moisture.
Invest in a super absorbent towel, such as one made of microfiber, that you can wrap around hair after washing.

6 Use hair dryer sparingly. Frequent use of a hair dryer can dry out hair, causing breakage and split ends. Try to limit your use of a hair dryer as much as possible, let your hair dry naturally instead. If you do use a hair dryer, don't hold it too close to your hair, as this will cause your hair to burn.
Always apply heat protection spray or serum to hair before drying.
Try using a cooler setting on the hair dryer, to minimize damage.
Invest in an ionic hairdryer. An ionic hairdryer emits charged particles that can cut drying time in half (minimizing heat exposure) and encourages the hair cuticle to lie flat.

Method 2: Use Products

1 Apply a hair mask. Apply a hair mask at least once a month to provide deep conditioning and to encourage softness and shine. Use a hair mask that's specially designed for your hair type, whether your hair is dry, oily or colored. Good hair masks can be found in pharmacies and hair salons. Alternatively, you can make your own hair mask, using ingredients from your kitchen.

For all hair types: avocado and honey: Cut and scoop out the flesh from a ripened avocado and mix in a tablespoon of organic honey. Apply to hair and allow it to sit for 20 minutes before rinsing it off in the shower.
For dry hair: olive oil and egg: Combine three tablespoons of extra virgin olive oil with two eggs and apply the mixture to your hair and let the mixture sit for 20 minutes before rinsing in the shower with cool water (so the egg doesn't cook!). If you do not like the smell of raw eggs, you can use a ready egg oil (eyova) instead.
For oily hair: apple cider vinegar and lemon: Combine 1/4 cup of apple cider vinegar with the grated peel of an entire lemon and allow it to set for 15 minutes to absorb the excess oil from your scalp, and then rinse in the shower.
For flaky scalp: banana, honey and almond: Mash together 1/2 a ripe banana and add two tablespoons of honey and a few drops of almond oil and allow it to set with a shower cap on for 20 minutes before rinsing.

2 Use serum. Apply to serum to wet hair before drying, or to freshly blow-dried hair. It will help keep your hair soft and shiny, while minimizing frizz.
Usually only a very small amount of serum is required (dime-sized amount).
Apply serum to ends and mid lengths of hair, but avoid the roots, otherwise your hair will look greasy.

3 Use heat protection. It is crucial to apply some sort of heat protection product before subjecting your hair to high temperatures from irons and dryers. Heat is your hair's worst enemy, so use a heat-protection spray to lock in moisture and minimize burning and breakage.

Heat protection products come in many forms, including sprays, serums, mousses and creams.
Always apply heat protection to wet or damp hair to ensure it absorbs fully. If you apply to dry hair, it will sit on top of the hair and will not provide adequate heat protection.

4 Use UV shielding products. You know how important it is to protect your skin from harmful UV rays, but what about your hair? The sun can be drying and damaging to your hair, so it's important to use products that are specifically designed to minimize of sun damage. These products can help prevent highlighted hair from lightening too quickly and looking fried, and they can keep dark hair from turning brassy or red.

Most UV shields are finishing products such as UV-based hairsprays or leave-in conditioners.
Keep in mind that UV shielding products always need to be applied to damp hair. Otherwise, they'll sit on the surface and won't sink into the hair.

5 Avoid chemical-laden products. Avoid shampoos, conditioners and other hair care products that contain harsh sulfates, parabens or sodium chlorine. These ingredients will build up in hair over time, causing damage and weighing down your locks.