Photobiomodulation
for your dog.
The B4A PBM combines red light (660 nm) and near-infrared (810 nm) in a handy battery-powered device for dogs. Engineered in Austria.
How photobiomodulation works at the cellular level
This is how research describes the mechanism: red light (660 nm) and near-infrared (810 nm) penetrate the tissue and reach the mitochondria — the "powerhouses" of the cell. This is where photobiomodulation (PBM) takes effect.
The mitochondrial hub: cytochrome c oxidase
Red and near-infrared light is absorbed by cytochrome c oxidase (Complex IV) in the inner mitochondrial membrane. This enzyme is the key of the respiratory chain — it catalyses the final stage of the electron transport chain, where oxygen is used to generate energy. It is considered the central light acceptor (chromophore) of PBM.
1 · More ATP — more cellular energy
Activating cytochrome c oxidase strengthens the proton gradient across the mitochondrial membrane. Research associates this with an increased ATP production — more available energy that can support the cell's natural processes.
2 · Less mitochondrial stress
At the same time, a lower formation of reactive oxygen species (ROS / free radicals) is described — which can reduce oxidative stress at the cellular level and support cell regulation.
3 · Cellular signalling pathways
The rise in ATP and the modulation of ROS are considered triggers of cellular signalling cascades associated with cell survival, balanced regulation processes and the body's own regeneration — processes that can support wellbeing.
Not only local — the systemic perspective
Current research describes that PBM doesn't act only on the irradiated tissue: a local application can reach more distant regions via circulating factors released from the irradiated cells — an approach that can support microcirculation broadly.
Why in dogs?
Muscle, tendon and cartilage cells have a high mitochondrial density — exactly the target structure of PBM. Red light reaches surface-near structures (approx. 5–10 mm), near-infrared medium depths (up to approx. 20–30 mm) — suitable for skin, coat, muscles, tendons and joints.
| Level | Effect described in PBM research |
|---|---|
| Mitochondrial | ATP ↑ · ROS ↓ |
| Cellular | cell regulation & cell survival supported |
| Tissue | circulation ↑ · regeneration ↑ |
| Systemic | circulating, regulating factors |
The right approach instead of raw power
Infrared-focused: more 810 nm
8 of the 14 LEDs are near-infrared. NIR physically has a greater penetration depth than red light — the B4A PBM deliberately focuses more on depth than many comparable devices.
Selectable 10 Hz pulse
Continuous light or pulsed at 10 Hz. Pulsed photobiomodulation is an active research field; the choice is yours. In pulse mode, the application time roughly doubles.
One button. Deliberately simple.
No display, no app: Press — red + infrared on. Hold 3 seconds — 10 Hz pulse. Press again — off. One-hand operation, even with gloves.
LED — not laser
14 high-power LEDs, red and infrared combined. Photobiologically tested to EN 62471, Risk Group 1 — no safety goggles required; do not look directly into the light source.
Three areas – one device
From targeted use in rest phases through the routine after exertion to daily prevention — the B4A PBM supports your dog through every phase.
1 · Recovery in rest phases
Targeted at strained regions when a demanding phase is ahead.
Targeted at strained regions
Support for regeneration at tendons, joints and muscles – a few minutes daily, in coordination with your vet.
In rest & rebuilding phases
In low-movement phases, the body's own regeneration can be supported – position by position.
Alongside professional care
As a supportive wellness routine – in coordination with your vet and physio.
2 · Regeneration after exertion
After sport, play and long walks: the short routine for muscles, tendons and joints.
Muscles & tension
Can accompany the relaxation of strained muscles — e.g. after training, play or longer rest periods.
Tendons & joints
Can be used supportively around heavily loaded regions such as tendons and joints — as part of the recovery routine.
Dog sports & activity
After agility, mantrailing or a long day outdoors: planned regeneration for muscles, tendons and joints – portable, with battery.
3 · Prevention & routine
The daily habit that sticks.
Skin & coat
Can be used supportively in the care routine around skin and coat — e.g. at paws, pads and coat.
Seniors
Can support the wellbeing of older or heavily worked dogs in daily life — lower joints, back in sections.
The daily short routine
Bed, garden, rest times: the short daily application – short enough to actually happen every day.
Regeneration starts in the nervous system
The vagus nerve is the main line of the rest-and-digest nervous system (parasympathetic) – and regeneration mainly happens when it is in charge. This is exactly where an exciting, emerging research field begins.
The vagus nerve
As the central nerve of the parasympathetic system, the vagus stands for "rest and recovery". Only when the nervous system switches to rest can the body regenerate. It runs relatively close to the surface at the side of the neck.
What research describes
Current research is investigating whether photobiomodulation may also influence the autonomic nervous system. Individual small studies describe changes in heart rate variability (HRV) – a possible indication of a shift towards relaxation.
An emerging field
Not a settled truth – but exactly the direction that makes recovery so exciting: regeneration begins where the nervous system comes to rest.
The device is the start – the knowledge makes the difference
Recovery, regeneration and prevention only work with the right routine: which position, how long, when recovery and when prevention. That's why every B4A PBM includes the matching B4A Academy online course – a dedicated course for your dog.
Step by step on the dog
Guided application position by position – from chest and back to joints and paws.
Recovery vs. prevention
When each routine makes sense – after sport and play, in rest phases and as a daily habit.
Safe & correctly dosed
Distance, duration and the selectable 10 Hz pulse mode – used correctly in everyday life.
The B4A PBM in everyday use
Real use on dogs — outdoors, in the garden and relaxed at home.
Solidly built. Thought through to the last detail.
A robust handheld device in an aluminium housing — Engineered in Austria. A manual for use on dogs is included.
Aluminium housing — for on the go
Solid aluminium housing instead of a plastic shell: robust against knocks, premium in the hand, durable in daily use — wherever you are.
Replaceable battery – not permanently sealed
If capacity fades after years, the battery is replaced instead of the whole device – good for your wallet and the environment.
Frequently asked questions about the B4A PBM
What is the B4A PBM?
A handy battery-powered device for light wellness in dogs. It combines red light (660 nm) and near-infrared (810 nm) — for your dog. A wellness product, not a medical device.
Which dogs is the B4A PBM suitable for?
For dogs of any age and size – from the sport dog to the senior. The included manual describes use on dogs. It is a wellness product and not a medical device.
Does my dog need safety goggles?
No. The B4A PBM is photobiologically tested to EN 62471 and classified in Risk Group 1 (low risk) — safety goggles are not required. As with any bright light source: do not look directly and deliberately into the LEDs.
What does photobiomodulation (PBM) mean?
PBM describes how light of certain wavelengths is absorbed by cells and triggers biological processes there — above all in the mitochondria, the "powerhouses" of the cell. Red and infrared light are considered the relevant wavelengths for this.
Why 660 nm and 810 nm together?
660 nm acts more on the surface (skin & coat), 810 nm penetrates deeper and reaches muscles, tendons and joints. The B4A PBM always emits both wavelengths together, covering surface and depth.
What can I use it for?
As part of your dog's daily recovery and care routine: around muscles, tendons and joints, for regeneration after exertion, on skin & coat and for general relaxation. It can provide supportive care for wellbeing — it is not a medical device and makes no healing claims.
What is the 10 Hz pulse mode for?
You can choose between continuous light and pulsed light at 10 Hz. Pulsed photobiomodulation is an active research field – we deliberately built the mode in so you have the choice, rather than leaving it out. In pulse mode, the application time roughly doubles.
PBM or PEMF — which first?
As a practice-proven recommendation: first PBM, then PEMF. The reason lies in the optics: red and near-infrared light penetrates best into undisturbed tissue. PEMF increases blood flow — more haemoglobin in the tissue absorbs the light and reduces penetration depth. If you use the light first, it uses the full "optical window". Afterwards, PEMF can stimulate circulation over a larger area and distribute the effects in the tissue.
In practice: 1) PBM on the target area, 2) a short pause, 3) PEMF over a larger area afterwards. For very tense or cold tissue, PEMF can also come first as a "warm-up" — both orders are fine.
Note: The combination of PBM + PEMF is an active research field without robust sequence studies. A practice-oriented recommendation, not a proven synergy.
How do I operate the device?
One button: press — red + infrared light up together. Hold for 3 seconds — 10 Hz pulse mode. Press again — off. No display, no app, operable with one hand.
Is it loud?
No. The B4A PBM works without a fan — especially with dogs an advantage for acceptance.
How long does an application take?
It depends on the distance. As a rough guide: at contact a few minutes per point, and correspondingly longer at greater distances. In 10 Hz pulse mode, the time roughly doubles.
LED or laser?
14 high-power LEDs, red and infrared combined. No laser safety goggles needed; 810 nm is invisible and creates no glare reflex in the dog.
Battery and charging?
10,000 mAh battery (3.7 V / 37 Wh), charging via USB-C. The battery is not permanently sealed but replaceable. The device is screwed shut; the battery swap is handled by our service (please don't open it yourself during the warranty period). So only the battery is replaced, not the whole device.
Is this a medical device?
No. The B4A PBM is a wellness product for dogs. No medical, therapeutic or healing effects are claimed.
For your dog
Gentle red light & near-infrared wellness for your dog — in a solid aluminium housing, with replaceable battery and selectable 10 Hz pulse mode.
Pre-order now