Your fingernails are composed of hardened layers of protein that grow from the base of your fingernail. As an extension of your skin, your fingernails can be subject to abnormalities and injuries--and dryness that makes your nails brittle and flaking. If you experience nail dryness, making lifestyle changes that can restore moisture can help.
Causes
Dry nails can be caused by dry temperatures--the lack of moisture in the air can make the nails dry and brittle, according to Oprah.com. Frequent dishwashing, long showers, swimming or other activities that remove moisture from the fingernails can cause dryness. Frequently using nail polish remover that contains acetone also may dry the nails, according to The Doctors Book of Home Remedies.
Prevention/Solution
Moisturize your dry fingernails and cuticles every day with petroleum jelly, olive oil or another moisturizer, according to The Doctors Book of Home Remedies. Slathering on petroleum jelly and then covering the hands with cotton gloves can help to retain moisture when the nails are especially dry, according to Oprah.com. Trimming your nails regularly can keep them strong--trimming after bathing can minimize damage. While manicures can help to keep the nails strong, frequent use of nail polish remover can further dry out the nails. Moisturizing before and after a manicure can help to restore moisture.
Misconceptions
When you experience hanging fingernails, it may be your natural inclination to bite or chew them off. However, you should clip the hangnail off instead, angling the nail outward, according to the Mayo Clinic. Also, wearing shoes that are too tight or constricting can cause your toenails to grow into the surrounding skin--while you may find these shoes are fashionable, they can cause dryness and weakness.
Nutrition
If you do not consume enough vitamins and minerals during the day, such as calcium, protein or iron, your nails may not have enough nutrients to grow properly. B vitamins also are necessary in order to improve nail health. Biotin especially can increase your nail thickness, resulting in healthier nails, according to the Mayo Clinic. Taking a biotin supplement of 2.5 mg daily can help you to reduce nail dryness.
Warning
Some fingernail conditions related to dryness may signal a more serious condition, according to the Mayo Clinic. If you observe these nail issues: yellowing, nail separation from the nail bed, horizontal indentations, white nails or curled nails, visit your physician for evaluation, according to the National Institutes of Health.
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