Avant Challenges Class 4 Marketing with Portable, Cost-Effective Class 3B Veterinary Laser Therapy System
Avant's case rests on three points: photobiomodulation (PBM) is mechanistically distinct from the high power/high-irradiance emphasised in Class 4 marketing; the published evidence supports a specific optimal energy window for pain reduction; and a protocol-led approach - treating the nervous system before the affected tissue - that produces more durable treatment outcomes.
Avant's evidence-anchored alternative is a 120–160 Joule treatment window, dual-wavelength delivery and a portable, rehabilitation-led methodology, delivered through the compact Class 3B LZ30 ProZ-Vet.
The UK veterinary PBM market has been shaped by manufacturers promoting Class 4 systems on the basis that depth of penetration requires high irradiance. Avant's position is that this is a marketing argument, not a clinical one: the published comparative literature shows no statistically significant outcome difference between Class 3B and Class 4 devices. What the evidence converges on is total energy. A 2018 meta-analysis of 96 articles and 232 resulting effect sizes identified 120–162 Joules per treatment area as one of the most prominent total-energy ranges associated with large pain-relief effect sizes. The LZ30 ProZ-Vet can deliver this window in three to four minutes per area.

Photochemical, Not Photothermal
Avant is designed around nonthermal photobiomodulation, where dose, wavelength, timing and protocol are the primary clinical variables. Light absorbed by mitochondrial cytochrome c oxidase initiates a photochemical cascade influencing tissue, inflammatory and neuromuscular responses beyond the point of contact - a cell signalling intervention, not a heating one.
Dual Wavelengths in a 140-Gram Handheld
The LZ30 ProZ-Vet delivers both 1,000 mW red (637nm) and 1,350 mW infrared (808nm) wavelengths from a single cordless 140-gram unit. These two bands carry the most concentrated PBM evidence base - red in wound healing and dermatology, infrared in musculoskeletal, neurological and pain applications - covering the broadest portion of the literature for practices treating mixed small animal and equine cases.
A Methodology, Not Just a Device
Avant's most distinctive position is that the methodology, more than the device, determines durable outcomes. Protocols treat the spine first to engage the nervous system controlling the affected area, then the local tissue, then guided movement where appropriate.
Both Class 3B and Class 4 devices require risk-assessed controls, trained operators and eye protection. Class 4 systems generally carry a higher hazard profile and more stringent operational controls. The LZ30 ProZ-Vet costs around one-third of leading Class 4 alternatives.
“Other companies focus on either ultra-low power or high power outside our range. Squarely in the middle is where Avant fits. It does the best job of combining safety and effectiveness — and that is what UK veterinary practices actually need.”
— Dr Tom Walsh, veterinary rehabilitation specialist and Avant clinical advisor
Visit Stand H55 at BVA Live
Avant is on Stand H55 at BVA Live, demonstrating the LZ30 ProZ-Vet. Every BVA Live order qualifies for the £500 show discount and every stand visitor is automatically entered into a competition to win an LZ30 ProZ-Vet.

About Avant Wellness Systems Ltd
Avant Wellness Systems manufactures Class 3B photobiomodulation devices for veterinary therapeutic applications. UK distributors - HewMed - supplies the LZ30 ProZ-Vet to first-opinion practices, referral rehabilitation services, veterinary physiotherapists, equine practitioners and specialist clinics, supported by structured clinical onboarding, treatment protocols and an active international research programme.
www.hewmed.co.uk | 0800 007 3640

