How to Keep Curly Hair Healthy
To keep your curly hair healthy, make sure your shampoo and conditioner don't contain alcohol or silicon, which can damage your hair. For even better results, forget the shampoo and just use conditioner to wash your hair, since it'll retain more moisture this way. If you want to blow dry or straighten your hair after you've finished washing it, use a heat protective spray first so you don't get split ends. Then, when you're styling your hair, use smaller amounts of serum or moose to avoid creating an oily build-up.
Condition your curly hair. Conditioning may be the most important thing you can do for curly hair. Curly hair is already more prone to dryness and damage/breakage than other types. So keeping it moisturized with conditioner is essential for healthy curly hair. You can condition your hair while in the shower, or try some leave-in conditioner. Use shampoo/conditioner for heat damaged hair. These products will likely contain the same ingredients as products designated for curly hair. They'll target the dryness and breakages, and that's what matters. Avoid products with alcohol or silicone. These ingredients will dry your hair out even more and lead to more damage. Many hair products are alcohol and silicone free; you just have to look at the labels to figure out which ones are. Try the dry/no shampoo method. Many experts swear by the dry/no shampoo method. This is when you wash your hair with just water, or you only use conditioner in the shower (but no shampoo). This is meant to help your hair combat dryness and breakage. Start in the shower. Put products on your sopping wet hair, even before you pat it dry with a towel. This will help your hair maintain as much of the moisture as possible from the water. Use smaller amounts of product. When it comes to styling products, less is more. The less you put in your hair, the less greasy/oily buildup you'll have to work against later. For styling serums, use a quarter-sized amount; for mousse, use a golf ball-sized amount. Refresh your curls between washes. Simply comb out your dry hair and spray it with a mixture that is half water and half leave-in conditioner. Comb the product into your hair, from the roots down, and then let your hair air dry. This will keep your curls looking fresh. Avoid heat. Products like hairdryers and hair straighteners are great for people with curly hair who want to switch their style up, but they are terrible at damaging and drying out hair. If you use these heat-based products on a regular basis, you will get more split ends and damaged hair. Try to avoid drying and straightening your hair as much as possible. Using a diffuser to dry your hair is better because it will not damage your hair as badly as a hairdryer. Pat your hair dry with a towel. Don't towel dry your hair; only dab the towel over your hair to soak up water. This prevents tangles and breaks. You can then brush your hair out with a wide-tooth comb. Avoid brushing your hair. Brushing curly hair is a bad idea because it can break the strands and further damage your hair. Try to use a wide-toothed comb to gently detangle your hair instead of ripping through tangles with a brush. Protect against chlorine. Swimming is a fun summertime activity, but if you have curly hair the chlorine can be very harmful. If you go swimming, make sure you use a shampoo and conditioner that helps against chlorine damage to your hair. Get a haircut when your hair is dry. Curly hair can lose a lot of its length from the curl itself. So make sure your stylist cuts your hair when it is fully dry so you know that you're getting the style you want. Use a satin pillowcase. Cotton pillowcases soak up moisture from your (already dry) curly hair, so try using a satin or silk pillowcase instead. This will also prevent friction and breakage while you sleep. 
Condition your curly hair. Use shampoo/conditioner for heat damaged hair. Avoid products with alcohol or silicone. Try the dry/no shampoo method. Start in the shower. Use smaller amounts of product. Refresh your curls between washes. Avoid heat. Pat your hair dry with a towel. Avoid brushing your hair. Protect against chlorine. Get a haircut when your hair is dry. Use a satin pillowcase. 