Onychoschizia
or splitting of the fingernails is a common problem seen by
dermatologists. The term onychoschizia includes splitting,
brittle, soft or thin nails. Onychoschizia is more common in
women.
Only very rarely are internal disease or vitamin deficiencies
the reason (Iron deficiency is the most common). One tip is that if the fingernails split, but the
toenails are strong, then an external factor is the cause.
Basically brittle nails can be divided into dry and brittle (too
little moisture) and soft and brittle (often too much moisture).
The usual cause is repeated wetting and drying of the
fingernails. This makes them dry and brittle. This is often worse
in low humidity and in the winter (dry heat). The best treatment
is to apply lotions containing alpha-hydroxy acids or lanolin
containing lotions such as "Elon" (by the
"Dartmouth" company) to the nails after soaking nails in
water for 5 minutes and after getting the hands wet.
Try to wear gloves when performing household chores that
involve getting the hands wet to avoid repeated wetting and drying
of the nails. Cotton lined rubber gloves are in every store, but
"Allerderm heavy duty vinyl gloves" worn with a thin
cotton inner glove is better.
If soft, consider that the nails may be getting too much
moisture or being damaged by chemicals such as detergents,
cleaning fluids and nail polish removers (the acetone containing
removers are somewhat worse than acetone free. Some feel that once
a week application of clear nail prep once a week may help. Nail
polishes with nylon fibers in them may add strength. Other useful
products are Derma-Nail (by Summers Lab) and Revivanail (by the
"Nailco" company 1-800-810-6000/$15.00 per bottle plus
5.95 shipping).
Be gentle to you nails. Shape and file the nails with a very
fine file and round the tips in a gentle curve. Daily filing of
snags or irregularities helps to prevent further breakage or
splitting. Avoid metal instruments on the nail surface to push
back the cuticle. If the nails are "buffed" do this in
the same direction as the nail grows and not in a "back and
forth" motion because this can cause nail splitting.
Biotin (a vitamin) taken by mouth is beneficial. Gets the
"Biotin ultra" 1 mg. size as it also comes as much
smaller pills and take 2 or three a day. It takes at least 6
months, but does really help at least 1/3 of the time. Do not take
this if you are pregnant. Calcium, colloidal minerals, and/or
gelatin don't help consistently.