Who they are
Theradome makes laser helmets for hair, two of which sit in our data: the PRO LH80 at $845.99 and the EVO LH40 at $1,028.99 list, $695 on sale. Our records note that the EVO's lasers are US-made, which is more manufacturing detail than any other brand in this dataset provides.
Market position is the honest spec sheet. Theradome has the lowest diode counts in the hair category, 80 and 40, and it does not pretend otherwise. It also uses 680nm rather than the 650 to 655nm almost everyone else runs, which sits slightly deeper.
The affiliate structure is a flat $52 to $64 per sale with a 365 day cookie, the longest in the category by a wide margin. Buyer-facing terms include a gift-with-purchase bundle stated at over $430 in value, covering a five year DomeCare extended warranty, a hair growth bundle and an ebook. Completing a two minute hair quiz upgrades the standard six month money-back guarantee to twelve months and adds a personalised trichology session, and 0 percent APR financing is offered regardless of credit score.
What they actually publish
Joules per session. Nobody else in the hair category does this, and it is the number that actually matters.
The PRO LH80 is stated at 727 joules delivered per session. The EVO LH40 is stated at 363 joules per treatment across a 20 minute session. Joules are energy delivered, which is what a dose is. Total optical power in milliwatts, which is what Kiierr, HairMax, illumiflow and iRestore publish, tells you the rate but not the amount. A 1,360 mW cap and a 727 joule helmet are not directly comparable figures, and only one of them tells you how much energy actually went into your scalp.
The second thing Theradome gets right is the emitter count. Eighty lasers on the LH80, forty on the EVO, and zero LEDs in either. The number on the box is genuinely all lasers. Compare that with iRestore, whose 500 diode Elite mixes lasers and LEDs and whose 120 diode Essential is 51 lasers and 69 LEDs, or with CurrentBody's hair helmet, which is 120 emitters and no lasers at all. Theradome's counts are the lowest here and they are also the only ones that need no footnote.
The EVO's wavelength is specified as 680nm plus or minus 3nm. A stated tolerance is a small detail that tells you someone measured rather than estimated.
What Theradome does not publish is irradiance in mW/cm2. For a helmet at fixed distance, joules per session is the more useful figure anyway, so this is a reasonable omission rather than a gap.
The range
The PRO LH80 at $845.99 runs 80 proprietary lasers at 680nm across the full scalp, delivering a stated 727 joules per session. One year warranty, and our device record shows a 30 day return window, though the brand separately promotes a six month money-back guarantee that the hair quiz upgrades to twelve. Confirm which applies to your order before buying, because the difference is substantial.
The EVO LH40 at $1,028.99 list and $695 on sale runs 40 US-made lasers at 680nm, delivering 363 joules across a 20 minute session. One year base warranty unless you pay for DomeCare, 180 day returns.
Note the counterintuitive pricing: the LH80 has twice the lasers and delivers twice the joules of the EVO, and it costs less at list. On the numbers Theradome publishes, the LH80 is the better device of the two, and the EVO's case rests on the newer design rather than on dose.
Against the wider category, 80 lasers is a low count. A Kiierr, HairMax or illumiflow 272 cap delivers 1,360 mW from 272 diodes. Theradome's argument is that its lasers are proprietary, deeper at 680nm, and that it will tell you the joules while the others will not.
Regulatory position
FDA cleared, with the numbers published and checkable.
The EVO LH40 is cleared as K161046, listed as Laser Helmet LH40-EVO, with the related LH40 cleared as K180460. Those are traceable in the FDA's public database, which puts Theradome alongside HairMax, illumiflow, Capillus and Qure in the group of brands that print the number rather than asking you to take clearance on faith.
Cleared means the FDA reviewed a 510(k) submission and agreed the device is substantially equivalent to a legally marketed predicate for a specific stated intended use. It is not FDA approval. It applies to the stated use only, and it is not a prediction of results for any individual.
Who should buy it, who should not
Buy the PRO LH80 if you want the cheapest FDA cleared all-laser helmet, you want a published joules figure to plan against, and 680nm appeals over the usual 650. On published dose per dollar it is the most transparent buy in the hair category.
Do not buy the EVO LH40 at list, because it costs more than the LH80 while delivering half the joules and half the lasers. At $695 on sale the gap narrows but the arithmetic still favours the LH80. Do not buy either if raw diode count is your criterion, since 272-laser caps from illumiflow sell at $899. And check the return terms in writing, because our device record and the brand's own promoted guarantee do not say the same thing.