Derma RollerIf you are reading this, chances are you already know a fair bit about the derma roller and how it works, and it’s just a matter of choosing the right one for your needs, still there is no harm on doing a little derma roller review, for others that happen to find this hub less informed.

The derma roller is a skin care tool, that promotes collagen growth on the skin, it does that by doing really small holes on the skin, that trigger the skin’s response to the attack, and that response comes in the form of collagen. This new layer of collagen will correct the skins previous imperfections, covering up acne scars, stretch marks, and so on.

For a better understanding of the matter we need to understand how skin works, and how it is layered. It can be split into three layers:

  1. Epidermis
  2. Dermis
  3. Hypodermis

Skin LayersThe ones that we need to focus are really the first two, specially the dermis, since that is the place were most deformities occur, and where the collagen production takes place. The epidermis is also important since it has a direct relation to the needle size that we must choose while using the derma roller, the only problem is that the epidermis is not the same depth in all of the body, ranging from 0.05mm on the eyelids to 1.5mm on the foot sole and palms, so that would be a rough indicator of the minimum depth of the dema roller needle.

Another aspect to bear in mind is the depth where the deformity stands, usually like i said before, it stays in the dermis, but there are some exceptions, such as skin pigmentations, that lie in the epidermis itself, and in that case there is no need for a deeper needle, having this in mind we can formulate a small table relating needle size to conditions.

0.5mm 1.0mm 1.5mm
Acne Scars Deep Acne Scars Very Deep Scars
Mild Chicken Pox Scars Surgery Scars Severe Cellulite
Mild Ice Pick Scars Chicken Pox Scars Deep Stretch Marks
Anti Age Treatments Ice Pick Scars
Thinning Hair Extensive Hair Loss
Greying Hair Cellulite
Light Stretch Marks


Derma Roller Needle Pressure

This is a popular subject also, for anyone using the derma roller, what pressure should be applied while using it, and can a smaller needle be used harder to treat a condition that requires a bigger one.

The first question is simple, it’s a time versus effort situation, if you press harder your skin will take longer to recover between sessions, the end result will be the same, and take the same amount of time; yet you will feel more pain and you will experience a lot more redness than if you use regular pressure. So it’s up to you to decide whether you can take a bit more time and for example roll the affected skin twice a week with the regular pressure, or do it once a week and suffer a bit more, on a personal note I strongly advice you to choose the first, mainly because of the less redness, you get to heal and look good at the same time.

The second question seems trickier but in fact is is not, it is always recommended you use the regular pressure, and the indicated needle length for you condition, mainly because the sharp edge of the needle is also longer in a longer needle, so the penetration will not be the same as of the smaller needle.

Specific needle for hard to reach areas

3 line derma rollerSometimes the regular derma roller, is just too wide for certain parts of the skin, such as the nose and around the eyes. For these special locations there is also a special 3 line roller, that is much narrower than the standard version, making it suitable for those hard to reach areas.

These rollers come in 1.0mm or 1.5mm depth. You can try to use the regular one, but you simply cannot have the same precision that the smaller one has, you might end up increasing the pressure, fail to roll as instructed in the operation manual, and that eventually might lead to less than optimal results.

Final Thoughts

Now that you know what is the proper needle size suitable for you needs, go and get/use your derma roller, and start working your way to a perfect skin. Since I’m somewhat an evangelist to this new kind of treatment, i already have other hubs on the matter, that you can check out below, if you care for some more related information.

If you just looking for the right brand of derma rollers, just keep in mind that is must be FDA approved, and have the needles gamma-sterilized, also most ebay rollers, don’t have precision cut needles, and they often lose sharpness over time, that why some of them are really disposable derma rollers, that can only be used 2 or 3 times, you can cheap out on a lot of things, but please for the sake of your health, don’t go cheap on derma rollers. On a personal note, i advise potential buyers to go for the Scientia Derma roller, simply because they seem to have the best quality/price ratio, while keeping the standards i talked about, also they have a very good website where you can learn more about this kind of therapy, and even order your own roller.

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