About Matt

Forget the marketing hype. Get real science, real facts and expert knowledge about aesthetic and medical laser technology.

Led by Matt Brown, Founder of Zenith Laser NZ and a recognised expert in laser engineering, this blog cuts through industry myths, debunks misleading claims and explains the science behind the technology.

As a leader in New Zealand's laser industry, Zenith is committed to technical accuracy, honest advice and evidence-based education.

No hype. Just facts.

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IPL, DPL, BBL: What’s the Difference?

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If it looks like a horse, rides like a horse , neighs like a horse and eats like a horse, it is probably a type of horse. The beauty industry loves big acronyms, technical words and even bigger claims. IPL is described as old. DPL is called the next generation. BBL is often presented as though it is a completely different form of energy. The truth is much simpler. IPL, DPL and BBL are closely related pulsed-light technologies. They use non-coherent light to target melanin, haemoglobin and other structures in the skin. They broadly treat the same things: Pigmentation and sun damage Redness and small vascular concerns Acne Hair reduction Skin rejuvenation Skin tone and clarity Each does it slightly differently, but they are not completely different animals. The Simple Explanation Technology What it really is IPL Broad-spectrum light shaped using interchangeable filters DPL A narrower, fixed band of pulsed light designed for a particular job BBL Sciton’s proprietary and highly developed b...
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Laser " certifications " are mostly useless.

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What Laser Certifications Actually Mean ( and its not much ) FDA, CE, TGA, TÜV, MDSAP and the myth of "Medsafe Approved" A certificate may show that a specific regulatory requirement has been met. It does not prove that a laser is premium quality, performs well or has been physically tested by a government regulator. Beauty laser brochures are covered in impressive acronyms: FDA, CE, TGA, TÜV, MDSAP and often "Medsafe Approved". Clinic owners are encouraged to see these as gold stars for quality and safety. That is the problem. These systems all have a purpose, but none is a simple quality rating. They do not tell you whether the machine uses good components, delivers accurate energy, cools properly or will still perform after thousands of shots. Here is what each one actually means. 1. Medsafe: there is no "Medsafe Approved" laser Medsafe clearly states that WAND is not an approval system . WAND is the New Zealand database used to record medical devices a...
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The Physics of Phototherapy: Why Low-Power LED Devices Aren't True Clinical Solutions

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If you are running a busy clinic, your treatment rooms are prime real estate. Every 20 to 30-minute slot needs to deliver a real, visible result for your client, or your retention rates drop. Lately, the New Zealand market has been flooded with miniature LED panels, flexible masks, and small benchtop devices. They are inexpensive, they look portable, and the marketing claims attached to them are massive. Wholesale suppliers love to pass these off as clinical solutions by throwing around big numbers, like thousands of Total Watts or hundreds of tiny LED bulbs. But as a clinic owner or manager, you need to look past the sales pitch and examine the hard physics. Peer-reviewed clinical trials establish that real cellular change requires high, sustained energy levels that small, low-power consumer devices simply cannot produce. The Math Behind a Clinical Result In phototherapy, we are trying to trigger a specific biological response - like forcing acne bacteria to self-destruct or stimulati...
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