1. Wash your extensions gently: No matter whether its summers or winters, you need to handle these with utmost care. It is important to wash them on regular intervals as these extensions soak the oil that is released naturally from the head, which can damage the extensions, if not washed on a regular interval. In addition, the oil will make it greasy and the fibers in case of synthetic extension and hair in case of the natural ones will fallout. To wash these, soak it in warm water, then cover it with clarifying shampoo and rinse it off with cold water. One important thing that should be kept in mind is that you should not comb or brush the extensions when wet as it will shred out hair and will not last longer.
2. Keep your extensions moisturized: If you style them quite often, you should moisturize them on regular intervals as they often become dry faster. Apply some leave-in conditioner evenly with a comb to keep the moisture intact, which lends the sheen to these extensions. However, do not overdo it as it will make them greasy and might even fallout from the head. One important thing that should be kept in mind is that do not apply it on the tape as it will cause them to slip off. Apply it atleast an inch or two away from the roots.
3. Do not leave the extensions wet: You don't have to avoid swimming during summers or refrain from enjoying the sea, but make sure that you don't keep them soaked in water for long. Wipe them off immediately and dry them using an air dryer. Wet hair breaks off immediately so make sure that you properly dry them and do not tie them up.