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Oil Based Facial Cleansers – Are They For You?

Jun 26, 2019

If you are combating oily skin, the last thing you may want to hear is someone recommending you wash your face with oil! But guess what? Oil-based facial cleansers do exist, and even more  so, people are starting to flock towards using them.

Still shocked by the thought of rubbing oil onto your face? Proponents for oil-based facial cleansers use the logic from the chemical world that “like attracts like.” This sort of reflects the old adage, “Fight fire with fire.” Anyway, back in terms of facial care. In order remove the oils that are “gunking” up your face, you need to dissolve them. Oils will naturally dissolve oils because they have the same chemical structure and are able to bind to one another. Oils are actually good at dissolving anything, including makeup. So you wash away everything in one fell swoop.

If you are still not a believer, then consider another reason to use oil-based skin cleansers. A lot of makeup is hard to remove, especially waterproof mascara. Using oil-based cleansers can make removing makeup a snap. Basically, the lipids in the oils surround and breakup the hard-to-remove makeup. So if you’re tired of yanking out eyelashes from trying to remove your mascara, maybe it is worthwhile to try oil-based cleansers.

Oil-based facial cleansers can contain castor, olive, jojoba, emu, safflower, sunflower, avocado or almond oil, just to name a few! Sounds like an organic symphony, but do not assume all oil-based facial cleansers are organic. Most will contain chemical ingredients, if only to stabilize and increase shelf-life of the cleansers. The addition of propylene glycol also helps the viscosity and smooth flow of the cleanser.

Not all oil-based cleansers are liquids. Some Best Facial Cleanser are oils mixed with water, emulsifiers and thickeners. Have you heard of “cold creams?” Those are actually oil based; look at the ingredients and you will see mineral oil.

Now, mineral oil itself has been part of a long-standing debate. Health conscious people claim mineral oil, which is derived from petroleum, is not a substance that belongs anywhere near the human body, period. While it is true that inhaling mineral oil is dangerous, rest assured that mineral oil that is used in facial products has been refined and highly purified. It has passed safety testing for use in cosmetics. To date, there have been no scientific studies that linked cosmetic grade (highly purified) mineral oils to cancer. However, you should do your own research and read reviews on some of the common cold creams to decide if you want to give them a try.

If you are serious about testing oil-based cleansers, then how about following the “oil cleansing method” completely? This method involves using nothing but oil to clean your face! Mix together the oils, then spread it over your face. Wait a few minutes, then apply a warm washcloth over your face. The point of this step is to steam open pores to allow the oils to work their ways in for a deep cleanse. Lastly, rinse or wipe away the oils with a clean towel.

Fight oil with oil! There is only one way to find out if this method can work for you, and that is to give oil-based Best Facial Cleanser a try. If you need to work up the courage, do an internet search. You’ll find lots of fans and believers in the oil cleansing method. Maybe it’ll work for you, too.

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A Brief Overview Of Industrial Laser Diodes

Jun 26, 2019

Laser diodes have many uses in today’s world, from military applications to telecommunications, meteorology and medicine. There are several common modes of operation and a wide variety of structures to suit proposed industrial uses.

Operation of Laser Diodes

A laser diode is similar to a light-emitting diode (LED) in that it has as its active medium a semiconductor. The most usual type of diode is found at a p-n junction (the boundary between p-type and n-type semiconductors) that is created by a process called doping. These junctions are then powered by injected electric current and are called injection laser diodes to differentiate them from optically pumped laser diodes.

Many diodes emit in continuous wave (cw) mode from anywhere from several watts down to just milliwatts of power. These industrial diodes lack the ability to be overdriven and even small periods of exceeding the maximum power can cause damage to laser resonators and effectively shut down the laser. For industrial applications that require a lot of peak power usage time, pulsed laser diodes are able to be overdriven effectively and easily for short time periods. To achieve this, short pulses are followed by pauses, keeping the pulse lengths in the 200ns range. These pulses of light are generated by laser currents that lessen inductive loss through the use of fast switching transistors and very short electrical connections.

Laser Structures Over the Years

Laser diode technology has changed rapidly from the early 60s, when it was demonstrated at the IBM T.J. Watson Research Center. Since then, we have seen diodes move from liquid phase epitaxy (LPE), or layering of crystals, to molecular beam epitaxy and organometallic chemical vapor deposition in the 1970s. These forms have been added to and expanded with the addition of Vertical Extended Cavity Surface Emitting Lasers (VECSELs), Vertical Cavity Surface Emitting Lasers (VSELs), external cavity Switching Diodes and others, including subcategories.

Common Industrial Uses

Some of the smaller varieties of Switching Diodes are used in laser printers, bar code scanners, laser pointers and CD planners. But the larger diodes are used in many important defense applications, such as the pulsed laser rangefinders in military tanks and directed energy strike systems that produce powerful light to destroy land mines, rockets, mortar rounds and other ordinances. The medical community benefits through the use of this technology through cosmetic applications such as Intense Pulsed Light (IPL) for hair, age spot, and wrinkle removal, other lasers for soft tissue surgery, and even in dentistry for procedures as diverse as cavity removal and tooth whitening. Vertical extended cavity surface emitting lasers (VECSELs) are important for big screen televisions and other commercial uses. Other various applications for laser diodes include welding and cutting of metals and other industrial materials, fiber optics for telecommunications systems, laser levels for surveying, and the taking of accurate 3D measurements.

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