A key benefit of all modern diode lasers is the inclusion of sapphire tip contact cooling. Typically, these are cooled to 3 – 5C and effectively cool the epidermis and basal layer i.e. the top 0.1mm of the skin. The melanocytes and melanin granules are very small targets, in effect floating in a transparent water bath, (Skin typically 60- 65% water) which acts as a heat sink for the incident energy passing through the epidermis. Below the basal layer the difference in skin types disappears and the relative absorption of the laser energy by the hair/hair follicle relative to the surrounding tissue is the most important factor.
With older diode lasers the limitation is the amount of energy that can be delivered within the target’s Thermal Relaxation Time (TRT).
For Example:
Assume medium thickness hair with a TRT = 40ms
Low peak power density laser
Typically, these lasers could only deliver around 8J/cm2 in 40ms which is insufficient. Therefore, in order to deliver sufficient energy into the target is takes longer than the TRT and at the TRT, by definition, 50% of the energy has leaked out of the target into the surrounding tissue. This leakage needs to be replaced and typically these earlier style lasers will require something like 20-25J/cm2 and this will take in the region of 100ms. The result is that more than 3/4 of the energy delivered is leaked into the surrounding tissue – heating it.
This heating effect both:
- a) Adds to the incident laser heating.
- b) It is delayed heating, which can occur after the cooling has been removed. i.e. If there is significant hair density – hairs/cm2then there is also a significant bulk heating effect of the skin, which while the cooling is in place is held back from the skin’s heat sensors but once this cooling is removed as the head moves on this heat can rise to the surface and potentially cause pain.
Modern contact tip cooling used correctly is so much more efficient than cooled air cooling. Note: Imagine standing in a bathing costume outside in 5C with a stiff breeze blowing – not nice. Then contemplate what it would feel like jumping into a swimming pool at the same 5C temperature. For most people it would be breath takingly cold.
H0wever, with so much of the energy being leaked into the surrounding tissue these lasers run out of steam and start to cause discomfort as the hair shafts become lighter and finer.
High Peak Power Density Lasers
Recent developments in diode technology are enabling far more powerful diodes. As a result, all of the necessary energy can be delivered well within the TRT and so much less energy/heat is lost to the surrounding tissue.
A typical comparison is shown below:
Assumption is hair with TRT of approximately 40ms
|
Low Peak Power Density Laser
|
High Peak Power Density Laser
|
Total Required fluence (energy)
|
22 J/cm2
|
13 J/cm2
|
Pulse width
|
100ms
|
15ms
|
Approximate Energy/ heat lost into surrounding skin
|
1st TRT = 50%
2ndTRT = 25%
½ 3rd TRT =6%
Total 81%
|
3/8 1st TRT = 19%
Total 19%
|
Heating lost to skin tissue
|
18 J/cm2
|
2.5 J/cm2
|
Percentage reduction in the heating of the surrounding tissue by using the High Peak Power Density Laser
|
|
86%
|
This massive reduction in heat leakage into the surrounding skin makes the treatment far more comfortable and greatly reduces the risk of damage to the surrounding tissue.
When treating deeper rooted hairs, the pulse duration can be extended but remain well within the TRT of the hair.
The reduced loss of heat into the surrounding tissue both increases the safety margin and enables the peak power and fluence to be increased to effectively treat finer and lighter hair.
Therefore, the new technology of high peak power density lasers for hair removal is far more effective and provides better patient comfort and an increase in safety margin.
Find out more about the Cambridge Stratum Quantum 1 and Quantum 2 high peak power density lasers. Contact us for more information or to arrange a demonstration using our online form.
Clinical Grade Solutions for Stratum Synergy
/2 Comments/in News, Special Offers /by John CulbertCambridge Stratum, a leading distributor of aesthetic equipment in the UK, is excited to launch our new clinical grade of solutions for use in the Stratum Synergy skin management platform.
The new solutions are for use where a more intensive treatment is preferred. These solutions can be purchased separately and the Cellnula Kit, our beauty grade solutions for the HydroMedi, are still available.
We currently have a special offer on every customer’s first order of the clinical-grade solutions of 30% discount on the below prices:
Ingredients
S1 Cleanser – Contains: Lactic Acid 10%, Methyl Paraben & Purified Water
S2s Sebum Reducer – Contains: Salicylic Acid 5%, Ethanol, Propylene Glycol, Methyl Paraben, Propyl Paraben & Purified Water
S3 Hydration & Protection – Contains: Urea 10%, Vitamin C 10%, BHT, Methyl Paraben, Propyl Paraben & Purified Water
S4 HydroFlush – Contains: Ethanol 6%, Methyl Paraben, Propyl Paraben & Purified Water
If you would like to find out more information about the Stratum Synergy or the consumables then please get in touch today!
Commended at Aesthetic Awards 2019
/0 Comments/in News /by John CulbertCambridge Stratum has been commended at the Aesthetic Awards 2019 for the Aesthetic Product Distributor of the Year award. This commendation recognises the success achieved by Cambridge Stratum and the high regard in which they are held in the UK Aesthetic Industry.
Cambridge Stratum has evolved rapidly and now distributes a range of innovative, affordable and reliable aesthetic equipment. The machine range includes Tattoo Removal Lasers, Hair Removal Lasers and Skin Management Platforms to name but a few. The range of Aesthetic Equipment distributed by Cambridge Stratum allows us to work with our clients to make sure they choose the most suitable pieces of aesthetic machinery for their clinics. We work collaboratively with our clients to make sure they are fully supported and make the right choices in an industry that can often seem saturated with choice.
Cambridge Stratum is proud of how far they have developed in 2019 and are excited about new ranges of aesthetic equipment that they are looking to launch in 2020.
Finalist for the Aesthetics Awards 2019!
/0 Comments/in News /by John CulbertCambridge Stratum, known for offering world class aesthetic equipment at work class prices, has been selected as a finalist for the Aesthetics Awards 2019!
The Aesthetics Awards acknowledges and rewards practitioners, companies and organisations that endorse best practice, deliver outstanding customer service, demonstrate unprecedented skill and who uphold robust ethics. Cambridge Stratum is proud to have been nominated for the Clinicsoftware.com Award for Aesthetic Product Distributor of the Year!
Cambridge Stratum has been nominated for the critical role we play as a UK based Aesthetic equipment distributor bringing exciting and innovative machinery to the UK Medical Aesthetic market. We have a passion for sourcing new equipment that delivers real value to our customers and their clinics, our constant drive to push our network of manufacturers to deliver high-quality equipment at responsible prices means we are the perfect partner when looking to source new Aesthetic Machinery.
As a broad-spectrum distributor, we are also able to give an honest unbiased comparison between competing technologies. We also offer a market-leading 3-year warranty on the majority of our Aesthetic Equipment to demonstrate the confidence we have in our product quality.
Cambridge Stratum has an extensive range of equipment including Tattoo Removal Lasers, Hair Removal Lasers such as the Quantum II and an exciting new product that will be launching shortly, the Stratum Reveal, a 1050nm Diode Laser for non-invasive body contouring.
We are excited about the future and this nomination is a recognition of our efforts to be a leading UK Distributor of Aesthetic Equipment. We would like to thank all our suppliers and customers for their support in making us one of the market leaders.
If you could vote for Cambridge Stratum to help us win the nomination for the Clinicsoftware.com Award for Aesthetic Product Distributor of the Year then we would be very grateful.
https://aestheticsawards.com/voting/category/5
Aesthetic Medicine North
/0 Comments/in Uncategorized /by Connor DunnWe had a great show at Aesthetic Medicine North, 29th and 30th June in Manchester, where John Culbert, CEO Cambridge Stratum, gave a talk on advances in diode lasers.
Our stand was busy, with lots of interest in the Stratum Synergy. Take a look at the video below of a lady who enjoyed a couple of our facial treatments.
Find out more about all our products here.
Meet Us at Aesthetic Medicine North
/0 Comments/in Uncategorized /by Connor DunnAesthetic Medicine North takes place in Manchester this weekend, 29th – 30th June.
Our CEO, John Culbert will be speaking on Saturday at 2.30 and we are exhibiting, stand B23.
Come and meet us in Manchester!
High Peak Power Density in Hair Removal Lasers
/0 Comments/in News /by Connor DunnA key benefit of all modern diode lasers is the inclusion of sapphire tip contact cooling. Typically, these are cooled to 3 – 5C and effectively cool the epidermis and basal layer i.e. the top 0.1mm of the skin. The melanocytes and melanin granules are very small targets, in effect floating in a transparent water bath, (Skin typically 60- 65% water) which acts as a heat sink for the incident energy passing through the epidermis. Below the basal layer the difference in skin types disappears and the relative absorption of the laser energy by the hair/hair follicle relative to the surrounding tissue is the most important factor.
With older diode lasers the limitation is the amount of energy that can be delivered within the target’s Thermal Relaxation Time (TRT).
For Example:
Assume medium thickness hair with a TRT = 40ms
Low peak power density laser
Typically, these lasers could only deliver around 8J/cm2 in 40ms which is insufficient. Therefore, in order to deliver sufficient energy into the target is takes longer than the TRT and at the TRT, by definition, 50% of the energy has leaked out of the target into the surrounding tissue. This leakage needs to be replaced and typically these earlier style lasers will require something like 20-25J/cm2 and this will take in the region of 100ms. The result is that more than 3/4 of the energy delivered is leaked into the surrounding tissue – heating it.
This heating effect both:
Modern contact tip cooling used correctly is so much more efficient than cooled air cooling. Note: Imagine standing in a bathing costume outside in 5C with a stiff breeze blowing – not nice. Then contemplate what it would feel like jumping into a swimming pool at the same 5C temperature. For most people it would be breath takingly cold.
H0wever, with so much of the energy being leaked into the surrounding tissue these lasers run out of steam and start to cause discomfort as the hair shafts become lighter and finer.
High Peak Power Density Lasers
Recent developments in diode technology are enabling far more powerful diodes. As a result, all of the necessary energy can be delivered well within the TRT and so much less energy/heat is lost to the surrounding tissue.
A typical comparison is shown below:
Assumption is hair with TRT of approximately 40ms
Low Peak Power Density Laser
High Peak Power Density Laser
Total Required fluence (energy)
22 J/cm2
13 J/cm2
Pulse width
100ms
15ms
Approximate Energy/ heat lost into surrounding skin
1st TRT = 50%
2ndTRT = 25%
½ 3rd TRT =6%
Total 81%
3/8 1st TRT = 19%
Total 19%
Heating lost to skin tissue
18 J/cm2
2.5 J/cm2
Percentage reduction in the heating of the surrounding tissue by using the High Peak Power Density Laser
86%
This massive reduction in heat leakage into the surrounding skin makes the treatment far more comfortable and greatly reduces the risk of damage to the surrounding tissue.
When treating deeper rooted hairs, the pulse duration can be extended but remain well within the TRT of the hair.
The reduced loss of heat into the surrounding tissue both increases the safety margin and enables the peak power and fluence to be increased to effectively treat finer and lighter hair.
Therefore, the new technology of high peak power density lasers for hair removal is far more effective and provides better patient comfort and an increase in safety margin.
Find out more about the Cambridge Stratum Quantum 1 and Quantum 2 high peak power density lasers. Contact us for more information or to arrange a demonstration using our online form.
Cambridge Stratum attends BACN Autumn Aesthetic Conference 2018
/0 Comments/in News /by adminAesthetic distributer Cambridge Stratum appoints new marketing team
/0 Comments/in News /by adminIntroducing the Spectra 1550
/0 Comments/in News /by adminApproval as a VTCT training center
/0 Comments/in News, Special Offers /by John CulbertWe are pleased to announce that our sister company Cosmex Clinic, Cambridge has been approved as a VTCT Training Center for Laser and Light Therapy training.
Therefore we will in conjunction with Advance Training be able to offer VTCT Level 4 training on Laser and Light therapies, with the advantage for Cambridge Stratum customers that the practical elements of the course will be done on Cambridge Stratum machines.
For customers new to Laser and light therapies this will make the transition from training to clinical practice virtually seamless. To view the certificate please click on the link below:
Training approval for Laser and Light therapy training