Capillus vs Regrowthy: FDA-Cleared Laser Caps Compared

The Wavelength Question

One meaningful technical note: Capillus devices use 650nm wavelength. Regrowthy uses 660nm. The distinction matters because the published research on photobiomodulation for hair loss uses predominantly 655 to 660nm wavelengths. The Jimenez 2014 trial that established LLLT efficacy with statistical significance used 655nm. The 2019 meta-analysis pooling eleven RCTs used studies in the 650 to 670nm range. Both wavelengths fall within the therapeutic window. The clinical literature does not establish that 650nm is meaningfully inferior to 660nm or vice versa. We note the difference as a transparency measure, not to claim superiority.

Price Analysis

At $2,999, the Capillus Ultra costs ten times what the Regrowthy cap costs. The Capillus Ultra has 272 diodes compared to Regrowthy's 200+. More diodes means more coverage per session and potentially a shorter session duration. But the 6-minute session time of the Capillus versus Regrowthy's 15-minute session is a feature, not just a specification. Whether a shorter session is worth a $2,710 premium is a calculation every buyer makes for themselves.

Device vs Complete System

Capillus sells a device. That is the entire offering, and it is a well-made one. Regrowthy sells the device as the anchor of a routine that also includes topical and internal support. The Density Drops serum applies rosemary-led botanicals to the scalp, and the Daily Density line supports the follicle from the inside.

This is not a knock on Capillus. If all you want is a laser cap, a device is a complete answer to that want. But hair loss responds best to multiple mechanisms working together, and the Regrowthy cap ships with a free $49 Scalp Activation Kit and sits alongside topical and supplement options that Capillus does not make.

Who Should Choose Capillus

If a 6-minute session is important to your routine, if you specifically want the highest diode count available, and if the premium price is not a concern, Capillus is a legitimate, long-established option with device-specific clinical evidence behind it. Some buyers also simply prefer a brand that has been in the laser cap category since 2012, and that is a reasonable preference.

Who Should Choose Regrowthy

If you want the same core technology, an FDA-cleared red light laser cap at a clinical wavelength, without paying a four-figure price, Regrowthy delivers that at $289.99. If you want a complete routine rather than a standalone device, the free kit, the topical serum, and the supplement line are all part of the offering. A slightly longer 15-minute session is the practical trade-off, and for most buyers that is an easy one.

The Bottom Line

Capillus makes a real, FDA-cleared product with a real clinical track record. So does Regrowthy. Both fall within the wavelength range supported by the research. The difference comes down to price and scope. Capillus offers a faster session at a premium price for the device alone. Regrowthy offers the same category of technology for a fraction of the cost, a longer session, a free kit, and a complete system around it. For most people, the value calculation points clearly in one direction.