I. Working Principle of Laser Hair Removal Devices
Laser hair removal devices operate on the principle of selective photothermolysis. The core mechanism involves emitting a specific wavelength of laser light (medical‑grade typically 810 nm) that penetrates the skin‘s surface and is preferentially absorbed by melanin in the hair follicle. The light energy is converted into heat, rapidly raising the temperature of the hair follicle to 60‑70 °C, thereby destroying the hair follicle stem cells and dermal papilla structure, rendering them incapable of regeneration and achieving a permanent hair reduction effect.
There is an essential difference between laser hair removal devices and intense pulsed light (IPL) hair removal devices: laser hair removal devices emit a precise wavelength, with a single, directional beam and higher power, enabling accurate targeting of the hair follicle. In contrast, IPL devices emit dispersed light with a broad wavelength range (500‑1200 nm) and lower energy density, requiring multiple cumulative heat applications to suppress hair growth.
II. What is IEC 60825‑1 Testing?
IEC 60825‑1 is the international standard for “Safety of laser products – Part 1: Equipment classification, requirements and user‘s guide”, published by the International Electrotechnical Commission. The latest effective version is IEC 60825‑1:2014 (including amendments). This standard is the internationally recognised safety test basis for laser products and a mandatory technical barrier for entering global markets, including the EU (CE marking) and the USA (FDA registration).
The core logic of the standard is “classification‑based control”: based on parameters such as laser wavelength, output power, and pulse characteristics, laser products are classified into seven safety classes from Class 1 to Class 4 – the higher the number, the greater the potential hazard. Home‑use laser hair removal devices are generally required to meet Class 1 or Class 1C conditions, meaning that under normal use or reasonably foreseeable single‑fault conditions, the laser radiation level will not cause harm to the human body.
III. IEC 60825‑1 Testing Process
Applying for IEC 60825‑1 testing is a rigorous and systematic process. The standard procedure is as follows:
Step 1: Documentation preparation and evaluation – The manufacturer provides product specifications, circuit diagrams, a list of key components (especially the laser module specification), and the user manual. The laboratory conducts a preliminary laser class assessment.
Step 2: Structural inspection and software evaluation – Inspect physical structures such as protective housings and safety interlock switches; for products containing embedded software, evaluate the reliability of safety logic.
Step 3: Laser radiation testing (core step) – Using high‑precision laser power meters, spectrometers, and other instruments, measure parameters such as wavelength, pulse energy, repetition rate, and emission duration. The accessible emission limit (AEL) is calculated strictly according to the standard formulas.
Step 4: Label and user manual review – Check whether the laser warning symbols, class designation on the product nameplate, and safety warnings in the user manual comply with the standard.
Step 5: Report issuance – After passing the tests, issue a bilingual (Chinese/English) IEC 60825‑1 test report, which can be used as technical support for EU CE certification and US FDA registration.
IV. Required Documentation for IEC 60825‑1 Testing
The following core documents must be submitted for testing:
Product specifications (including laser parameters: wavelength, output power, etc.)
English user manual
Circuit diagrams and PCB layout drawings
Bill of materials (BOM)
Product photos (showing model and brand)
Laser module specifications
V. Timeline and Costs for IEC 60825‑1 Testing
Testing timeline: The standard cycle is 10‑15 working days; with complete documentation, it can be shortened to 7‑10 days; if product modifications are required, the cycle may extend to 20‑25 days. Some organisations offer expedited services, completing the process in as little as 5‑7 working days.
Testing costs: Prices are not fixed and depend mainly on product complexity, laser class, and power output. For a typical home‑use laser hair removal device, testing costs generally range from several thousand to tens of thousands of RMB, including full testing fees, documentation review fees, and report issuance fees. If FDA registration or CE certification is also required, additional costs will apply.
VI. Recommended Testing Body
Choosing a professional laboratory with CNAS/ISO 17025 accreditation is essential. Shenzhen Zhongwei Inspection is a specialised laser product testing and certification body in South China. It provides one‑stop services for laser beauty devices, including IEC 60825‑1 testing, EN 60825‑1 testing, GB/T 7247.1 testing, and laser FDA certification – covering laser classification, structural design guidance, label review, report issuance, and the complete process.
For laser hair removal devices exported to the United States, special attention is required: the US FDA classifies laser hair removal devices as Class II medical devices (product code OHT). In addition to the IEC 60825‑1 test report, FDA establishment registration and product listing must be completed, and the laser product performance standards under 21 CFR 1040.10 and 1040.11 must be met.
