What Makes Lasers Different From One Another?

I'm a big believer in doing your research before jumping into a treatment chair, not only on the person who's treating you but the equipment being used as well.

Problem is with so many different kinds of lasers and different brands that make them, it can be really overwhelming.

Without getting too far into it I'm going to break down what makes one laser different from another and why there's no such thing as "the best one."

A laser is a concentrated beam of energy (photons) that contains a single wavelength.
Think of a hand held laser pen. This makes it different than light which contains multiple wavelengths and is diffused and scattered energy (photons). Think of a light bulb.

To start, only the non-ionizing spectrum of energy is used in medical aesthetic devices.
This means the energy does not cause cellular mutations like x-ray or UV rays can, for example.
All the wavelengths used are safe and do not cause cancer, which is a concern many people have.

See image of light spectrum below:

















So for this article I'll be focusing on the non-ionizing wavelengths.

A wavelength is a measurement of the distance between two peaks in a wave of light energy and this distance is measure in nanometers (nm).

This is what makes lasers different from one another...but hang on it's not quite that simple.

Different wavelengths not only penetrate into tissue at different depths (see image below), but what they absorb into best varies from one another too. In medical aesthetics you have three main targets (chromophores) that you'd want a laser to absorb into.

Those three things are water, hemoglobin (in blood) and melanin (or other pigment such as tattoo ink). Some wavelengths "like" certain targets more than others.


Depth of penetration by wavelength:

For example a 755nm wavelength likes pigment and due to the depth of penetration the energy has into tissue it's used to treat sun spots, tattoos and hair removal since all these things have melanin or man made pigment.

Make sense?

Another example would be a 1064nm wavelength which penetrates so far into tissue it can reach the fat or subcutaneous layer. This wavelength absorbs into water and hemoglobin nicely and is what I use to treat leg and facial veins.

So choosing which wavelength is best depends on the target or chromophore you're treating, and where it is in the tissue. That's why there's no single best wavelength. They all behave very differently.

Then there's ablative or non-ablative wavelengths. Ablative meaning to remove tissue.
To do skin resurfacing for anti-aging or for acne scars you'd need to use an ablative wavelength like a CO2 laser or an Erbium YAG laser. Again, even though they can both be ablative they're actually still very different.

So now you may be wondering how to produce different wavelengths in the first place.
It's pretty cool actually!

Inside each laser there is an "Active Laser Medium" and this is what's used to amplify the power of the photons, which is what all light is made up of.
Depending on the medium, the photons come out as different wavelengths.

Different types of active laser mediums fall into three different categories...solid, liquid and gas.

An example of a solid state laser would be the 1064nm Nd YAG where neodymium-doped yttrium aluminium garnet is used to produce this specific wavelength.
Neodymium is a metal and Yttrium Aluminium Garnet is a crystal.

An example of a liquid state laser would be a 600nm Pulse Dye Laser where an organic dye is used as the active laser medium.

And an example of a gas state laser would be a 10,600nm CO2 laser.
CO2 gas inside the laser is used as the active laser medium.

Told you it was pretty cool!

This is why it's incredibly difficult for people to do their own homework on what laser is best for their specific concern.
What I've explained here is just the tip of the iceberg and if you don't understand laser and light physics and the interaction is has with tissue, it's pretty much impossible to figure it out on your own.

This is also why I stress the need for people to do their research on the person behind the lasers, the technician. The technician has to have a solid understanding of this and so much more to decipher what will be best for each individual and give safe, effective treatments.



To book a consultation with me text or call 403 991 1663, message me on Instagram @lauras_lasers or email me at lauraslasers@gmail.com

Of All Laser and Light Treatments...This Is The Most Dangerous And It's Probably Not What You Think!

With so many different laser and light treatments out there, it can really seem to be overwhelming.
Many people I meet put off exploring these kinds of treatments because they feel like they just don't know where to start, and I'll agree that it can seem pretty intimidating.

I always encourage everyone to do their research or "home work" on the clinic and treatment provider before committing to any kind of treatment plan at all. There are dozens of wavelengths that make lasers different from one another many and different companies that make lasers, which differ in quality.

Of course even if you find a clinic with the most high-tech equipment, the laser technician has to know how to use that piece of equipment properly and have the understanding of the skin, energy, tissue interaction and the condition which they're treating.
It's all actually very complicated and we've all heard one or two horror stories out there from a laser treatment gone bad.

That's why it's so important to find someone with experience and proper education. Since the industry isn't regulated, that responsibility falls on the client.
To clarify, no...you don't need any training or education to treat someone with a laser.
Scary, right? Tell me about it.

You may be wondering "Clinics don't actually hire just anyone, do they?"
Well yes, some do.
I've seen clinics convert their receptionist or manager to "Laser Tech" and suddenly they're treating people to remove hair, to do ablative skin resurfacing and even internal vaginal rejuvenation treatments.

The benefit for the clinic owner is a less expensive "technician" since they have zero experience, they don't get paid as much, and the benefit for the client is.......

Hmmmm, you might have to give me a minute for that one.......scratch that.

It's simply unfair to the client as treatments can be quite pricey and don't come without risks.
Common risks you may see on a consent form for a laser treatment are burns, blisters, scarring, hyperpigmentation, hypopigmentation, infection and permanent eye damage.

Just to name a few.

You may be thinking those risks listed would only show up on a more aggressive kind of laser treatment, right? Well no.
All those things listed above are quite possible even with an innocent laser hair removal treatment.

You may also be wondering what treatment carries the most risk? You're probably wondering that because it's the title of this blog...so ok, I'm getting there.

The treatment that is the most risky, which just also happens to be one of the most popular and well-liked is an IPL which stands for "Intense Pulsed Light".
Also called BBL which stands for "Broad Band Light" or simply called Photofacials.
They're all the same thing.

This is actually not a laser at all, it's light. What makes the two different is a laser is one concentrated beam of energy and contains one wavelength from the light spectrum.

Whereas as IPL or BBL contains multiple wavelengths and is scattered. While a laser being a concentrated beam of energy sounds way more scary than a scattered light...it is actually easier to hurt someone with an IPL than it is a laser.

Since an IPL contains multiple wavelengths and each different wavelength absorbs into certain things like melanin, hemoglobin or water all differently, you have more absorption into different targets all at the same time which is what makes it so much more risky.
The parameters (settings) that are dialled in by the technician have to be ON POINT for the treatment to walk that fine line of effective, yet safe.

To do that the technician should have a solid understanding of the light spectrum and tissue interaction. Sadly not a lot do.
The most common thing I hear from people who have had Photofacials is that they found the treatments ineffective.

This is common since a technician who isn't experienced will often shy away from stronger settings and simply under treat. So sure they're not burning people, but they're also not giving them what they paid for and the client is left disappointed.


Just another reason to do your research on who you trust your face to!


Go to my Instagram page @Lauras_Lasers to see my work, message me if you have any questions or to book a consultation!

Striving For A Higher Standard

These days it seems like everyone and their dog is a skin care expert, it can be confusing to know how to decipher the real information and the trending now, gimmicky kind of information...i.e. 24K gold, collagen, Himalayan salt, coconut oil, and charcoal ingredients that all promise to transform your skin.

 

First off, many people will be surprised to learn that to be a skin care professional there are no requirements or standards set in place. Not even in spas or medi-spas, and of course anyone on the planet (and who knows, maybe even seriously their dog!?) can sign up and start selling skin care from pyramid type companies.

 

Without needing to write an entire separate blog, we’ll just say that the skin is an organ. The largest organ of the body, and just like any other organ it needs proper nutrition to be healthy.

The cells in the skin are growing and dividing constantly, just like all the cells in the rest of the human body. These cells need vitamins and minerals to function normally. When you come across new, trendy skin care you might want to approach with some healthy skepticism.

 

Skin care that provides high quality vitamins, antioxidants, minerals, peptides and hydration are products that will feed, and change the skin. These types of products are placed in a separate category all together, called cosmeceuticals. They are highly concentrated, active products that are only sold through spas or clinics with trained professionals.

 

Even more terrifying, the same goes for the laser and light industry. No requirements, no standards, nothing needed to get behind a laser and start treating people. That being said, it’s always important to do your homework when you’re choosing to hand over not just your money, but your face to someone.

 

Many clinics and spas choose to set higher standards and will only hire estheticians or laser technicians who have gone to school and have experience in the industry.

Some clinics and spas however, do not. So the onus is on the client to research, and to even simply ask what kind of education their esthetician or technician has and what the hiring policies of the establishment may be.

 

While getting bad skin care advice may not be the end of the world as it may only turn out to be a waste of money and dissapointment in the lack of results, a bad laser or light treatment can be far more costly.

Burns, infections, scarring, permanent pigmentation and eye damage are just a few of the complications that can arise from a treatment gone bad.

 

Of course, this article is not meant to instill fear in those who are looking into laser or light treatments. After all when done properly, the results can truly be amazing and well worth the investment.

 

However it’s important to know that these treatments don’t just involve a point and shoot method. Laser and light physics and the interaction this energy has with tissue is a science and something that needs to be well understood by those delivering treatments.

Be diligent, don’t trust blindly and do your homework!

Why Tanning Beds Are Actually Robbing You Of Your Vitamin D

Many indoor tanning companies advertise their beds to be beneficial for providing vitamin D. This is a marketing angle that these companies have come up with in an attempt to offset the bad reputation that indoor tanning has gathered in the more recent years in regards to skin cancer and other health and cosmetic problems.

 

Surprisingly, this tactic has worked quite well in attracting people who are interested in this new, and so called “healthy” way to get their vitamin D. While we obviously need healthy levels of vitamin D, this is definitely not the ideal way to get it and we will tell you why!

 

As most of us know there are 3 main rays that are dispersed from the sun. UVA, UVB and UVC rays.

UVA rays are the rays that cause tanning, skin cancer and are responsible for breaking down collagen and elastin fibers deep in the skin which is why they’re also responsible for causing the majority of premature aging.

 

UVB rays are the rays that damage the skin more superficially (on the surface), cause burns and enable the skin to make vitamin D.

Thankfully UVC rays are filtered out by the earth’s atmosphere, so we don’t have to worry too much about those ones!

 

A tanning bed will contain up to about 90% UVA rays, since these are the rays that cause tanning, and only 10% UVB rays. Clearly the concentration of UVB is very low, however this isn’t the main problem when talking about why a tanning bed would actually diminish our levels of vitamin D.

The real problem is a sneaky one and probably something you’ve never heard about before.

 

UVA rays denature and destroy vitamin D. Yup, that’s right! You see normally, in cases of long term sun exposure outside the balance of UVB allowing us to create the vitamin, along with UVA denaturing it would keep us from essentially over dosing on vitamin D. But, since tanning beds are about 12x the concentration and are mostly UVA rays, this throws any natural balance way off whack. This means that any vitamin D we’re creating from the low levels of UVB rays in a tanning bed, is being destroyed just as fast by the UVA rays.

 

In addition, any vitamin D we walked in with is also being destroyed straight from the skin as well as the blood stream since UVA rays penetrate deep down into the dermis which is home to many nutrient rich blood vessels. It’s because of this that we’re actually leaving the tanning salon with less vitamin D than when we entered it!

 

So, now that we’ve thoroughly discredited tanning beds in offering us any health benefits…what is the best way to get vitamin D?

Some health care professionals will actually recommend getting natural sunlight outside and collecting your vitamin D that way. That however, leads us to a problem…actually several problems, but let’s take it one at a time shall we?

 

How much sun does one need to get their daily dose of vitamin D? This can vary greatly from person to person and is solely dictated by skin color. Someone who has fair skin and light hair needs a lot less sun exposure than someone who has brown or black skin with dark hair to get their vitamin D.

This process can also be effected by factors like certain prescriptions. For example, something like cholesterol lowering medications can inhibit your skin from making vitamin D since the vitamin is ultimately created from a precursor of cholesterol!

 

The less cholesterol available, the less vitamin D can be created.

Another factor is the time you would have to spend in the sun on a day to day basis is going to vary greatly with weather/seasonal changes. One day it could be 10 minutes on a beautiful sunny day, the next it could be 25+ minutes on a cloudy one. The amount of exposure needed also varies widely depending on where you live and how close you are to the equator.

 

So, that being said, as a general rule when exposing yourself to the sun without any protection such as long sleeves, an umbrella or sunscreen for example. The time it takes for your skin to turn light pink is the recommended time someone should stay in the sun in order to create enough vitamin D.

However, another general rule for sun exposure is when the skin starts to turn red, there has already been free radical damage to the area.

 

This may not sound so bad to most people but keep in mind, it’s actually free radical damage that leads to development of something like skin cancer. There’s a fine line between some pink tones developing and redness developing in the skin. Most people won’t be paying enough attention to even notice that there’s any difference at all and would therefor end up causing unwanted damage.

People also often assume the skin is not only creating, but is absorbing the vitamin D instantly, or at least in a relatively short amount of time, right? Guess again!

 

New research shows that the process of the vitamin D reaching and being absorbed into the blood stream can take up to 48 hours! Until then, it’s vulnerable near the surface of the skin and can even be washed off with soap in the shower!

 

So it’s for ALL of these reasons that getting your vitamin D outside is simply not a safe, reliable or a realistic option!!

Our opinion and that of many skin health professionals is that the safest and most effective way to get your vitamin D is through supplementation. A high quality, high absorbency type of nutritional supplement not only keeps you safely out of the sun, but allows you to dispense exactly how much vitamin D you need for your specific needs. Depending on body weight and many other factors, this can range anywhere between 1,000 to 5,000+ UI’s.

 

Checking in with your doctor is always a good idea to make sure you’re getting the amount you need. Hopefully with this new information, you’ll be able to make the best choice for yourself!!