With options like Derma Diode (755/808/1064nm) and Derma Quad Laser (755/808/940/1064nm), understanding wavelength performance helps clinics select the safest, most effective device for all Fitzpatrick types. This comparison breaks it down clearly.  

Laser hair removal remains one of the most profitable and in-demand aesthetic treatments. With rising client expectations for comfort, speed, and long lasting results, choosing the right laser system is crucial for both safety and business success. Two of the most advanced options available today are 3 wavelength diode lasers and 4 wavelength diode lasers.

Both technologies deliver effective permanent hair reduction, but they work differently. Understanding these differences helps clinics choose the system that aligns best with their treatment goals, client base, and business model.

This guide breaks down the essential distinctions between 3-wave and 4-wave laser systems, using verified details from the Derma Group brochure.

What Does “Wave” Mean in Laser Hair Removal?

A wavelength refers to the specific depth and target within the follicle that the laser energy reaches. Different wavelengths absorb differently in the skin and hair, which affects:

• Depth of penetration
  
  
• Skin type suitability
  
  
• Treatment efficacy on various hair textures
  
  
• Comfort and safety
  
  

Using multiple wavelengths allows the laser to target the follicle at different levels and improve overall results.

Understanding 3-Wave Laser Technology

Derma Group’s 3-wave laser, the Derma Diode, combines three of the most established wavelengths in hair removal: 755 nm, 808 nm, and 1064 nm. 

These wavelengths work together to safely treat all skin types and hair types.

755 nm Alexandrite

Highly effective for lighter hair and finer textures due to strong melanin absorption.

Ideal for Fitzpatrick I to III.

808 nm Diode

Considered the classic all round wavelength.

Balances depth, speed, and comfort.

1064 nm Nd:YAG

Penetrates deepest into the follicle.

Safest for darker skin tones (Fitzpatrick IV to VI) due to lower melanin absorption.

The Derma Diode system includes ice tip cooling technology for improved comfort and a touchscreen interface with preset parameters for consistent results. 

Understanding 4-Wave Laser Technology

Derma Group’s 4-wave device, the Derma Quad Laser, adds an additional wavelength to expand versatility: 755 nm, 808 nm, 904 nm, and 1064 nm. 

The standout addition is the 904 nm wavelength, which enhances penetration and helps target stubborn or deeper-rooted hair.

Key features include:

• 10 million shot handle for longevity
  
  
• Built in UVC sterilisation for strict hygiene
  
  
• An Android control system for remote updates and treatment storage
  
  
• Imaging progress tracking for visual proof of results
  
  

These features position the Derma Quad as a highly advanced, clinic ready system. 

3-Wave vs 4-Wave: What Is the Real Difference?

1. Versatility and Depth of Treatment

The 4-wave device includes the additional 904 nm wavelength that increases depth and improves performance on dense or coarse hair.

The 3-wave system provides excellent versatility but without the deeper 904 nm penetration.

2. Suitable Client Types

Both systems treat all Fitzpatrick types.

However, clinics that see many clients with thick or resistant hair may benefit from the wider range of wavelengths available in the 4-wave device.

3. Cooling and Comfort

Both systems prioritise comfort.

The Derma Diode features advanced ice cooling.

The Derma Quad uses ICE cooling and includes additional hygiene features such as UVC sterilisation. 

4. Consultation and Progress Tracking

The Derma Quad includes an imaging system that captures visual hair reduction progress, helping clinics build trust and improve client satisfaction. 

The 3-wave device focuses more on treatment efficiency than consultation features.

5. Cost and Business Strategy

A 4-wave device typically costs more but introduces premium features that can justify higher treatment pricing.

A 3-wave device offers excellent results at a lower investment point, ideal for clinics expanding their menu or launching laser services.

Which System Should Your Clinic Choose?

Choose a 3-Wave Laser (Derma Diode) if your clinic wants:

• A proven, high performing system
  
  
• Fast, safe treatments across all skin types
  
  
• A more affordable investment
  
  
• A reliable choice for general laser hair removal
  
  
• Consistent, predictable outcomes with preset safety parameters
  
  

Choose a 4-Wave Laser (Derma Quad Laser) if your clinic wants:

• The most personalised and advanced hair removal system
  
  
• Enhanced penetration for stubborn or coarse hair
  
  
• Built in progress imaging to boost client retention
  
  
• Higher comfort and hygiene features
  
  
• A premium device that supports higher pricing and fast ROI
  
  

Both systems are capable of delivering permanent results in as little as six sessions and are suitable for a wide range of body and facial areas. 

The Bottom Line

Choosing between 3-wave and 4-wave technology depends on your clinic’s goals. If you want an affordable, reliable system that treats all hair and skin types effectively, the 3-wave Derma Diode is an excellent choice. If you want the highest level of personalisation, deeper penetration, and premium features that elevate the overall client experience, the 4-wave Derma Quad Laser is the ideal solution.

Both devices from Derma Group are UK compliant, CE certified, and designed for long term clinic growth. With flexible payment options, accredited training, and ongoing support, each system provides a pathway to strong treatment outcomes and sustainable revenue. 

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