In the future work. kindly take good care of your hair please. This is our suggestion of caring: 1.Be Extremely Gentle Please gently squeeze the hair carefully before wash. Brushing or styling the hair gently can prevent the hair from falling out. Use a soft-bristled brush, start at the bottom and slowly work your way up. It is best to care for them more than your own hair.Comb the ends first, then from top to the ends. We don't suggest comb the wavy item. Please gently squeeze the wavy instead. 2.Wash With Moisturizing Hair Care Products Wash and condition the hair at least every 1-2 weeks,Because your extensions are not getting natural oils from your scalp to keep your hair in good condition, this will keep the moisture in from shampooing while at the same time not drying them out from over-shampooingUse shampoo and condition when washing ,Olive oil or organ oil will be a plus. and mild water, not so cool,not so hot.Let the hair air dry after washing. Keep the hair in a dry and clean environment. Not expose it in the sun to dry it. After that u need put some hair oil on the hair to make the hair smooth. 3.Use a Heat Protectant Don't restyle the hair too often too hard,or the hair will easily get dry and the knots will be damaged.Use a heat protectant on hair extensions to reduce the risk of heat damage whenecer you use a heated appliance on your hair.4.Deep Condition Once a week, carefully put your hair in lukewarm water and apply a bit of conditioner all over. Leave for around 20 minutes then rinse and let dry naturally - using a blow dryer will damage them if used too much. If necessary, put the dryer on a cool setting (almost as if it was wind) .5.Keep Ends Trmmed As careful as you are, your human - hair extensions will most likely get split ends. To avoid letting the damage move up the hair shaft, trim the ends every 6 - 10 weeks. You can do it yourself using salon scissors, or go to a hairstylist.6.Dying or BleachingThe natural color can be colored.But we don't suggest you bleach too light color. As a general rule,it is easier to darken the hair than to lighten the hair.We recommend to dye darker no lighter,since once the hair has been processed or colored, it is difficult to fate the original color. Improper dying will ruin the hair and the lace cause shedding.7.You have to use your hand to make hairstyleChoose the texture you like and keep the original color.Some hair with more curly so pls take more care when washing to avoid tanglingHuman hair need very careful treat to keep in good condition. U may also look some Youtube video about hair care. Hope these can help u.Have a good day,dear friend! Q1: Can they be straightened, curled?A:Treat the hair as it is your own hair. Use a flat iron/straightener, but as with your own hair, never use hot tools too often.Q2: Can I dye or bleach the hair?A:yes. The hair can be colored. As a general rule it is easier to darken the hair than to lighter the hair. We highly recommend having your hairdresser dye the extensions, coloring them yourself always poses a high risk of not coming out the shade you want. If you can not get to a salon, use a good quality hair dye and test a small sample first please.Q3: Can I wash the hair?A:you can wash them as you would your own. Shampoo and conditioner. Because the hair is not attached to your scalp,it is not getting the oils it should be. We also recommend using a hair treatment on them every few weeks.Q4: Can I blow-dry the hair?A:The extensions can be blow-dryed on low setting, but it is not recommended to do it too often. It is best to let your hair extensions dry naturally after washing them.Q5: Why are my hair getting tangled?A:Your hair can tangle due to dryness, oil, dirt build-up and not combing (wide tooth comb) out your hair daily. Make sure to wash and condition your hair at least once a week, comb the hair daily and use hydrating drops.Q6: How long does it last?A:This hair can last for a very long time depending on how you maintain it. Treat it like your own hair and take very good care of it for it last longer.