The Bobby Pin Trick You Were Never Taught

It’s one of the simplest hair accessories out there — tiny, inexpensive, and seemingly straightforward. Yet most of us have been using bobby pins the wrong way our whole lives. There’s a small but clever design feature hidden in plain sight, and once you understand it, it’ll change the way you pin your hair forever.

1. The genius behind the design

a. Not just a random wavy shape

Have you ever noticed that one side of a bobby pin is flat, while the other has little ridges or waves? That’s not a stylistic choice — it’s deliberately engineered for grip. The wavy side is meant to face your scalp, not the outside.

Why? Because the ridges create friction with your hair, locking the pin in place more securely and preventing it from sliding out during the day.

b. Most people wear it upside down

It might surprise you, but the way you’ve likely been using bobby pins — with the flat side down — actually makes them less effective. Flipping them over and placing the wavy side down offers a tighter hold with less effort.

2. How to use a bobby pin like a pro

a. Inserting it correctly

Here’s the quick guide:

Slightly open the bobby pin (don’t force it wide),
Place it with the wavy side down, against the scalp,
Insert it opposite the direction of hair tension — so it anchors securely.

b. Lock with a cross

For extra hold (like in buns or updos), use two bobby pins in an X shape. This creates a locking effect and works even on fine or slippery hair.

c. Hide it for a clean look

Want invisible support? Slide the pin deep into the hair, and angle it downward. You get all the grip, with none of the hardware showing.

3. Unexpected uses beyond hair

a. Emergency tool

Bobby pins are surprisingly useful outside the bathroom:

Unlock a stuck drawer or reset electronics,
Eject a SIM card tray from your phone,
Clean tight corners like keyboards or jewelry.

b. Beauty hacks

Creative makeup lovers use bobby pins to:

Stencil winged eyeliner,
Place nail art details with precision,
Or even separate lashes after mascara.

c. Craft and DIY utility

In sewing and crafts, bobby pins can:

Temporarily hold thread or fabric in place,
Mark pleats or folds,
Be shaped into mini tools for sculpting or clay work.

The bobby pin might be small, but it’s packed with function. Once you understand its design and versatility, you’ll never underestimate it again. Whether you’re styling your hair or solving a minor DIY problem, this humble pin might just be your secret weapon.