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BeautyLife & Style

Are polishes, acrylics and powders bad for my fingernails?

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And do I need a breather between manicures? CHRISTIAN MORO and CHARLOTTE PHELPS answer FAQs

People are increasingly opting for regular manicures – with vibrant layers of polish, gel, acrylic or powder. And it’s not slowing down – the beauty and personal care market is expected to grow at around two to five per cent in the next year.

Manicure popularity (velvet nails are among the latest looks) could be down to fashion, social media influencers or our desire for small luxuries. But should we hold off from treatments, and give our nails a break every now and then?

Nails are a unique feature in primates, made from skin cells. A special arrangement of keratin, a structural protein, allows the nails to become strong and compact. Keratin is the same protein present in hair, as well as the horns, claws and hooves of other animals.

Upon maturing, the cells making up the fingernail disintegrate their nucleus, giving rise to a translucent and colourless appearance.

Nails strengthen and protect the fingertips. They enable fine motor control, such as turning the pages of a book or picking up a needle from a table. They allow us to scratch ourselves when itchy, hold a better grip on some items, and pry open nuts and foods.

The curved shape of the nail both strengthens it, as well as allows a nice snug fit to the underlying finger.

Fingernails grow at an average rate of 3 millimetres per month, so it takes about four to six months to fully grow from the cuticle to the tip.

Nails can be an insight into our health. An abnormally shaped nail bed (clubbing) may suggest anaemia, low tissue oxygenation, or cardiovascular disease. Discolouration or pitting could indicate autoimmune issues, infections or malnutrition.

Dermatologists see a lot of patients with frail and brittle nails. Such nails can be vulnerable to splitting or breaking.

Poor nutrition and age can also affect the health of the nailbed and the strength and colour of the nails.

Healthy nails are more likely to look good.

Good habits to adopt for strong fingernails include trimming the nails straight across and rounding the edges, not messing with the cuticles (which help keep out nasty bugs), and not putting anything sharp under the nails.

But of course, playing around with the look of nails using shades and colours can be fun and fashionable. Around 85–90 per cent of women worldwide use nail care products.

Although nail cosmetics can enhance nail appearance, they can potentially damage the underlying nails.

If you regularly paint your nails with traditional nail polish, be careful when using darker colours as this can stain the nail plate. Some ingredients in nail care products may also lead to allergic contact dermatitis.

To cure, harden, and dry each layer, the nail is often exposed to light under a fluorescent bulb. Most commonly, nail salons will use UV lamps, which requires about five minutes of exposure per hand.

This can cause cell damage and ageing to the skin. Current literature reports low skin cancer risk from UV lamp exposure. However, the recommendation is to apply a broad spectrum sunscreen with SPF >30 before exposure.

beauty2The most common method of removing gel polish is using acetone. The chemical can lead to brittle, dry and rough nails and cause separation of the nail from the nail bed.

Skin contact with acetone can also cause your skin to become dry, irritated and cracked. Some damage can also be done by peeling off acrylic or gel nails.

Although nail cosmetics come with relatively minor risks, dermatologists often recommend sticking with your natural nails and painting them with regular polish, and allowing intermittent breaks between manicures to give your nails time to breathe.

We use the term “breathe” loosely here. Your nails receive their nourishment from the blood vessels under the skin, and do not need contact with the outside oxygen. But keeping the nails uncovered with product does give your body a chance to repair and regenerate the nail and its surrounding skin, keeping the region nice and healthy.

How long of a break is up to you, depending on your nails. However, given a full nail regrows entirely in four to six months, you won’t need to wait that long.

 

Christian Moro is Associate Professor of Science & Medicine, Bond University and Charlotte Phelps is a PhD Candidate, Centre for Urology Research, Bond University. This article is republished from The Conversation under a Creative Commons licence

 

 

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