755nm Alexandrite Laser Technology — Clinical Applications, Devices & Specifications
Complete clinical guide to 755nm Alexandrite laser technology. Learn how it works, which devices use it, and what treatments it's best for.
755nm Alexandrite — Technology Deep Dive
The 755nm Alexandrite is a alexandrite crystal laser widely used in aesthetic medicine for laser hair removal and pigmented lesion treatment. It penetrates to a depth of 2-3mm (targets melanin in hair follicle) and is safe for Fitzpatrick I-IV (light to moderate skin tones). Major devices utilizing this wavelength include the Candela GentleMax Pro, Candela GentleMax Pro Plus, Cynosure PicoSure.
How 755nm Alexandrite Works
The 755nm Alexandrite alexandrite crystal laser produces light at a specific frequency that is preferentially absorbed by target chromophores in the skin — primarily melanin (for hair and pigmentation) and oxyhemoglobin (for vascular lesions). When the light energy is absorbed, it converts to thermal energy, selectively destroying the target while preserving surrounding tissue.
Key Physics
| Parameter | Value |
|---|---|
| Wavelength | 755nm Alexandrite |
| Laser Type | Alexandrite Crystal Laser |
| Penetration Depth | 2-3mm (targets melanin in hair follicle) |
| Safe Skin Types | Fitzpatrick I-IV (light to moderate skin tones) |
| Primary Chromophore | Melanin / Oxyhemoglobin |
Clinical Applications
1. Laser Hair Removal
The 755nm Alexandrite is the gold standard for laser hair removal due to its specific absorption characteristics and penetration depth.
2. Pigmented Lesion Treatment
The 755nm Alexandrite is highly effective for pigmented lesion treatment due to its specific absorption characteristics and penetration depth.
3. Tattoo Removal (green/blue ink)
The 755nm Alexandrite is highly effective for tattoo removal (green/blue ink) due to its specific absorption characteristics and penetration depth.
Devices Using 755nm Alexandrite
| Device | Manufacturer | Category | Used Price Range |
|---|---|---|---|
| Candela GentleMax Pro | Candela | Hair Removal & Skin Rejuvenation | $25,000-$65,000 |
| Candela GentleMax Pro Plus | Candela | Hair Removal & Skin Rejuvenation | $45,000-$90,000 |
| Cynosure PicoSure | Cynosure | Tattoo Removal & Skin Revitalization | $35,000-$80,000 |
| Cynosure Elite iQ | Cynosure | Hair Removal & Skin Rejuvenation | $30,000-$60,000 |
Advantages & Limitations
✅ Advantages
- Highest melanin absorption coefficient
- Fastest treatment times for hair removal
- Gold standard for lighter skin tones
- Excellent for fine hair
⚠️ Limitations
- Higher risk of burns on darker skin (Fitzpatrick V-VI)
- Less effective on blonde/grey hair
- Requires cooling system
Frequently Asked Questions
What is 755nm Alexandrite laser used for?
755nm Alexandrite laser technology is primarily used for laser hair removal, pigmented lesion treatment, tattoo removal (green/blue ink). It is safe for fitzpatrick i-iv (light to moderate skin tones).
Which devices use 755nm Alexandrite?
The most popular devices using 755nm Alexandrite include the Candela GentleMax Pro, Candela GentleMax Pro Plus, Cynosure PicoSure, Cynosure Elite iQ. Each offers different configurations and features for clinical use.
Is 755nm Alexandrite safe for dark skin?
755nm Alexandrite is best suited for fitzpatrick i-iv (light to moderate skin tones). For darker skin types (Fitzpatrick V-VI), a 1064nm Nd:YAG laser is recommended instead.