Nail health

7 reasons women over 40 are switching to nail color that protects

Thinner nails, peeling tips, the aftermath of gel. Why more women now want polish that does more than add color.

WGWell Groomed editors
Updated October 22, 2026 · 4 min read

A woman showing her glossy cherry nails — Stronger looking nails start with what you put on them.

After 40, nails change. They get thinner, they peel in layers at the tip, they split at the corner, and years of gel manicures often leave them weaker than ever. For a long time the choice seemed simple: pretty nails or healthy nails. A new kind of nail pen is changing that, and it is why so many women are making the switch.

1.Your nails really are thinner than they used to be

A nail peeling in layers at the tip — Peeling in layers at the free edge is one of the most common complaints.

With age, nails tend to get drier and thinner. That is why they now peel at the tip and catch on everything. A regular polish only adds color on top. Thin nails need a coat that also covers and protects.

2.Gel was quietly wearing them down

Thin nails after gel removal — Filing, curing, soaking: every gel cycle takes a toll.

Filing the surface, curing under a lamp, soaking in acetone to take it off. The American Academy of Dermatology notes that gel nails can cause brittleness, peeling and cracking, and that artificial nails can leave natural nails thin, brittle and dry.

3.A Korean innovation adds keratin to the color

Painting a nail with the Signature Pen — The Signature Pen Keratin Protect: hold it like a pen, paint, and seal the tip.

The idea behind it comes from Korea, where nail care is treated like skin care: color is expected to protect, not just decorate. That Korean innovation is what turned a simple polish pen into a keratin-enriched one.

Keratin is the protein nails are made of. The Signature Pen Keratin Protect by Hiddens lays a keratin-enriched coat down with glossy salon color, so every manicure adds a smooth protective layer over the weak, peeling spots.

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4.It seals the edge, where splits start

A nail split at the corner — Splits begin at the free edge, the part with nothing underneath it.

The trick is a light pass of the brush over the very tip of the nail. That seals the free edge, so it stops snagging on sweaters, towels and car keys.

"I stopped choosing between pretty nails and healthy nails."

5.No lamp, no filing, no acetone soak

Uncap, twist, paint. It air dries.

You uncap the pen, twist until the color reaches the fine brush and paint. It air dries and comes off with regular remover. Because you hold it like a pen, it works even when your hands are not as steady as they used to be.

6.Daily life stops wrecking your nails

Painted nails rinsing a glass under the tap — Water is one of the biggest enemies of weak nails.

According to the AAD, too much water exposure weakens nails and makes them split, peel or break. Dishes, hand washing, gardening: with a coat on, the nail stays covered. A quick refresh of the tips every few days keeps it that way.

7.It is a two-minute habit, not a salon appointment

A soft, weak fingernail — Soft nails need protecting more often, not less.

No booking, no drive, no bill. Most women paint on a Sunday evening and touch up the tips midweek. That small routine is what keeps weak nails covered between manicures.

Sources: American Academy of Dermatology, Tips for healthy nails and Reducing artificial nail damage.

Where to get it

The Signature Pen Keratin Protect

Korean keratin innovation, glossy salon color
Seals the free edge, where nails peel and split
No lamp, no filing, no acetone soak
Buy 1, Get 1 Free, free shipping, 60-day guarantee