Capillus vs IRestore: An Honest Comparison From A Retailer That Sells Both

Capillus and iRestore are two of the best-known at-home light therapy devices for hair loss. We sell both, so we have no reason to steer you to one brand. What we can do is set out where they genuinely differ, where the marketing overstates the difference, and which type of buyer each one tends to suit.

The quick verdict

• Choose Capillus if you want a discreet cap you can wear out of the house, the shortest daily session (six minutes), and a laser-only design with a published trial on the exact device family.
• Choose iRestore if you are happy to use a helmet at home, want more total light emitters for the money, and prefer a hybrid laser-plus-LED design.

Both are FDA-cleared for pattern hair loss in men and women. Neither will regrow hair on a scalp that has been bald for years.

How the two brands approach the problem

Both devices use low-level light therapy, also called photobiomodulation. Red light is absorbed by cells in the hair follicle and is thought to increase their energy production and lengthen the growth phase of the hair cycle. The difference is in how the light is delivered.

Capillus uses laser diodes only. Its caps are thin domes that sit under a baseball cap. Models range from 272 diodes at 650 nm on the Pro up to 312 diodes with added near-infrared wavelengths on the Spectrum and TriSpectrum, and 320 or 330 diodes on the exclusive MD Duo and RX Duo.

iRestore combines lasers with LEDs in a rigid helmet. The Essential has 51 lasers and 69 LEDs, the Professional 82 lasers and 200 LEDs, and the Elite 300 lasers and 200 LEDs. iRestore's argument is that LEDs spread light evenly between the laser points. Capillus's argument is that lasers deliver more concentrated, coherent light to the follicle.

No study has compared Capillus and iRestore directly, and there is no strong evidence that lasers alone outperform a laser-and-LED mix, or the reverse. 

Side-by-side comparison

	Capillus	iRestore
Light source	Laser diodes only	Lasers plus LEDs
Form	Flexible dome worn under a cap	Rigid helmet
Wear it out of the house?	Yes, under a baseball cap	Not discreetly
Session time	6 minutes daily (all current models)	25 minutes every other day (Essential, Professional); 12 minutes daily (Elite)
Wavelengths	650 nm (Pro); 650 + 808 nm (Spectrum, MD Duo, RX Duo); 650, 780 + 808 nm (TriSpectrum)	655 nm (Essential, Professional); 625, 655 + 680 nm (Elite)
Published trial	Randomised, sham-controlled; 44 women; 17 weeks; 51% greater hair-count increase than sham (Dermatologic Surgery, 2017)	Randomised, double-blind; about 40 men and women; 16 weeks; 43.2% average hair-count increase vs 5.7% placebo (company study, 2017)
FDA status	510(k) cleared	510(k) cleared

Evidence: closer than the marketing suggests

Both brands quote a headline figure from their own trial. Read side by side, they look similar, but they are not directly comparable.

• Capillus: the trial was published in a peer-reviewed journal (Dermatologic Surgery, June 2017). It studied 44 women only, used the Capillus272 Pro, and measured hair counts in a small marked area over 17 weeks.
• iRestore: the trial was a 16-week double-blind study of men and women led by dermatologist Dr Adam Bodian. It was reported by the company in 2017, and commentators at the time noted that full inclusion criteria were not published. It also used the original iRestore model, which had fewer emitters than today's range.

So both brands have a sham-controlled study supporting their basic approach, both studies are small, both were company-funded, and neither tested today's flagship models. A fair reading is that the evidence for each is broadly comparable, and moderate rather than conclusive.

Daily practicality: the difference most buyers underestimate

The best device is the one you actually use for a year. This is where the two brands differ most.

A Capillus session is six minutes, and the cap can be worn while walking the dog, commuting or answering emails. The battery pack clips to a belt. For most people this makes it easy to keep up every day.

The iRestore Essential and Professional need 25 minutes every other day, and the helmet is not something you would wear outside. The Elite shortens sessions to 12 minutes but asks for daily use. Many iRestore owners build it into a sofa-and-television routine and find that perfectly manageable. Others find the helmet harder to stick with.

If you know you struggle with routines, the shorter, more portable Capillus session is a real advantage. If you are disciplined and mostly use the device at home, it matters less.

Coverage and fit

iRestore's Professional and Elite helmets extend further towards the hairline and temples than the Essential. Capillus models differ by head size: the Pro fits up to about 23 inches circumference, the Spectrum about 24 inches, and the TriSpectrum and RX Duo about 25 inches. If your thinning is mostly at the front hairline, check coverage carefully for either brand. Both brands are generally most effective on the crown and mid-scalp.

Cost per month of use

iRestore generally offers more emitters per pound or dollar spent, particularly at the Essential and Professional levels. Capillus costs more for comparable entry points but includes the shorter session and discreet design. Because both treatments only maintain results while you keep using them, it is worth thinking in cost per year of use rather than sticker price. Spread over three years, the difference between brands is smaller than it first appears.

Current prices in your local currency are shown on each product page, with taxes and any duties set out at checkout.

Which one should you choose?

• You want the shortest routine and to treat on the go: Capillus Pro or Spectrum.
• You want the most light emitters at a mid-range budget and will use it at home: iRestore Professional.
• You want the highest-output helmet and are happy with daily 12-minute sessions: iRestore Elite.
• You want the highest diode count in a discreet cap: the exclusive Capillus RX Duo or MD Duo.
• Still unsure: take our one-minute hair loss quiz.

What neither brand will tell you

Light therapy works best on early-to-moderate pattern thinning, and usually best as one part of a plan rather than on its own. Expect four to six months before visible change and six to twelve months for the full effect. Results fade if you stop. And if your hair loss is sudden, patchy or accompanied by other symptoms, see a doctor before buying any device.

Shop both brands

This article is for general information and is not medical advice. Results vary between individuals. Specifications are taken from the manufacturers and were correct at the time of writing.