The easiest thing on your to-do list

No appointments, no mess, no remembering a twice-a-day routine. Put the cap on, press one button, and take 30 minutes that are already yours.

With your morning coffee

Portable & lightweight — start your day while it works.

During your wind-down

An episode of your show is almost exactly one session.

Even out on a walk

It fits discreetly under any hat no one has to know.

The therapy doctors use in clinics now on your couch

FDA-Cleared

The therapy doctors use in clinics now on your couch

"Low-level laser therapy is one of the few hair loss treatments I can recommend to women without worrying about side effects. It's safe, it's proven, and it treats the follicle itself."

— Dr Debra Shelby, Dermatologist

FDA-cleared as safe & effective for female pattern hair loss

93% saw regrowth in clinical testing

Same LLLT technology as $3,000+/year clinic programs

No heat, no UV — gentle on color- treated & textured hair

Real women. Real regrowth.

Unretouched before-and-afters from Kiierr customers moms, professionals, women in their 30s through their 60s.

"This cap gave me my confidence back. I can finally wear my hair down again without checking every mirror I pass."

Sarah J. · Verified buyer

"After menopause I thought thinning was just my new normal. Four months in, my part line is filling back in."

Marina G. · Verified buyer

"I wear it while I answer emails. Easiest thing I've ever done for myself and it actually worked."

Alison B. · Verified buyer

I'm Ready for My Results →

7

Month Growth Guarantee

If your hair doesn't grow, you don't pay. It's that simple.

We give you the full 7 months real regrowth takes. Use your cap 30 minutes every other day and if you don't see visible results, send it back for a refund. One of the most generous guarantees in the industry, because we've seen it work 50,000+ times.

1 · Get your cap

2 · Use it 7 months

3 · Grow or get refunded

Questions women ask us most

Imagine your hair, seven months from now.

A fuller part. A thicker ponytail. Getting ready without dreading the mirror. 50,000+ women started exactly where you are and with the guarantee, you can't lose.

Shop the Women's Laser Cap →

7-Month Growth Guarantee

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FDA-Cleared

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