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Microneedles: What are they and how do they work?


Microneedles are small needles used to deliver drugs in the body. They are so small that they are measured in nanometers which is one millionth of a meter. Microneedles do not work like normal hypodermal needles but like transdermal patches that are used to deliver patches of nicotine to smokers who are trying to give up their addiction.
The skin is the body’s first line of defense. It prevents foreign particles from entering into the body. This is normally great, but when it comes to drug delivery the skin can get in the way. To get around this problem, scientists came up with microneedles.

How do microneedles work?

A large number of microneedles are grouped together and placed on the skin like a patch. When the patch is pressed, the needles penetrate the outermost layers of the skin which creates small pores that allow the microneedles to pass through the skin. Since the needles are tiny, they pass easily through the blood vessels, tissues, and nerves without affecting them. So microneedle patches do not cause any bruising, bleeding or pain.
Microneedles are used when medicine has to be delivered to very specific areas in the body. Microneedles can be used to deliver vaccines. Liquid vaccines need to be properly refrigerated at temperatures below 2 to 8 degrees Celsius. It is estimated that around half of the world’s vaccines are wasted because they are not stored properly especially in the developing world where such facilities are uncommon. This is where microneedles come in. With the use of microneedle patches, the vaccine can be used in the dry state and does not need to be refrigerated.

Suppliers 

There are various numbers of suppliers of microneedles. However,quality is always being an issue. We have worked with number of companies and our best experience was with PremiumLift microneedles.




The use of Microneedles in Cosmetic Surgery

Because microneedles create micro pores in the skin, the body treats it as an injury and creates more collagen to heal itself. The increased collagen in the body leads to healthier, younger and more radiant looking skin.
The trick is to get the microneedles down deep enough so that the top layer is not affected and is not scarred. Doctors, physicians and surgeons have used microneedles for a variety of skin problems such as wrinkles, acne scars, black spots, and bumpy skin.

The Treatment

Before putting on the microneedles patch, a doctor thoroughly cleanses your faces. This is to reduce the risk of infection and make the whole process as sanitary as possible. Then a mild local anesthetic is applied to the face, and a human growth serum is applied to the face. This serum varies from clinic to clinic but is often hyaluronic acid. Hyaluronic acid is a naturally occurring sugar in the body whose function is to hydrate the skin and deliver nourishment to the skin. The hyaluronic acid is used in dermal fillers to give the skin a younger, smoother and more glowing look.
The needles themselves in a vibration-like or tingling feeling. The whole procedure takes about an hour and may result in some redness. The use of microneedles does not cause any scarring. 




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