ITSUKI is a hair care brand that protects your hair.

You care for your hair every night,
so why is it dry in the morning?

You applied treatment and dried your hair before bed, but you wake up to tangled, stiff hair. Every time you comb it, you hear a snapping sound.

If this sounds familiar, let me ask you something.

Have you ever considered what happens to your hair while you sleep?

While you sleep, your hair is exposed to friction for 8 hours.

It is said that people toss and turn 20 to 30 times a night. Each time, your hair, bearing the full weight of your head, rubs against the pillow.

No matter how much "adding" care you do, it's meaningless if your cuticles are scraped away and moisture leaks out during the night.

Your hair is dry in the morning not because you're not caring for it enough, but because you're not effectively preventing damage.

A nightcap is a tool to protect your hair.

Nightcaps are effective for hair care due to three functions:

• Secures hair ── Gathers hair inside the cap, preventing friction between strands and with the pillow.
• Protects from dryness ── Prevents constant exposure to dry air from air conditioning while sleeping.
• Envelopes with low-friction material ── The inner material of the cap reduces friction even from slight movements.

Silk pillowcases can also reduce friction. However, only nightcaps can simultaneously prevent hair tangles and protect against dryness.

But not all nightcaps are created equal.

This is a point many people overlook.

If the material is synthetic (polyester), static electricity can raise the cuticles, and sweat can be repelled, causing the inside to steam. This can be counterproductive, creating other damage while trying to prevent friction.

The reason silk is chosen lies in its composition. Silk is made of the same 18 amino acids as hair and hardly generates any static electricity. It also has a humidity-regulating effect that releases excess moisture while retaining only the hair's natural moisture.

Furthermore, a frequently overlooked design issue is "which side touches the hair." Many products have the shiny side of the silk facing outwards, meaning the hair actually contacts the more abrasive matte side.

All ITSUKI nightcaps are designed so that the shiny side of the silk faces "inward," i.e., the side that directly touches the hair. This is a design rarely seen in other brands.

ITSUKI delivers items that suit your lifestyle.

ITSUKI's hair care items are designed to fit an individual's lifestyle. We design nightcaps for those who don't want to spend precious morning time styling their hair. For those who find daily styling a hassle, we offer pillowcases. And we develop nightcaps that correspond to different hairstyles and head shapes.

"Can it be used and continued with satisfaction?" That is the standard for all design decisions.

Actual use changes your hair the next morning.

I myself have been wearing a nightcap every night for over 5 years. This time, when I slept "without doing anything," I was surprised by how unruly my hair was the next morning. The effect is truly remarkable.