See a marked difference after only two uses so I ordered 50 more micro needles, without having educated myself regarding bayonet vs screw design. The bayonet design, in lieu of the screw type, arrived so I contacted customer service. Got a same day reply and they said to watch my email for a tracking number as they are shipping out the correct micro needles. Imagine that!
You can feel confident when dealing with this company and their micro needling machine is definitely worth every penny. Highly recommended.

Following the link, after this purchase, to get replacement needles found that the needles aren’t screw in as the original that came with this machine. They don’t fit their own machine they sell even though the wrapping of original needle and machine needle are the same. I kept original and compared. Very unhappy because have machine without needles and needles without machine so am out $$$.

I sent a message to the customer service one day at 11:00 pm and they responded me some minutes after, they are super helpful. Im very impressed!!
The delivery was extremely fast.
I just got it, and it has instructions and the material that is made dermapen seems to be very good quality.
If it works i'll love it! I'll write another review with the results.

Not enough information as to how often to use and if you need a cream on the skin before using. This apparatus will dry out the area. So you need to use a cream on the skin that is a moisturizer and a sun block on top of your moisturizer! Very poor instructions! ----------I changed, This is an excellent product but you must be careful using it without any kind of cream on the skin. Used the item 2 days in a row, and my skin was very dry. So be careful. You can use Coconut oil a tiny bit on the skin before using then was your skin after, with a moisturizer and sunscreen if using in the morning. At night, you need just the moisturizer.

A friend who has had lots of experience with skin care, dermatologists you name it recommended the microneedling system to me. I was skeptical, but she said that this is very popular in Asia, and I wanted to try something to repair my skin without dropping hundreds on dermatology appointments.
The pen comes with needles and an electric hand piece, which is plugged into the wall for power. It's a fairly simple setup, just click the needle into the hand piece and it's done. The recommended use for each needle is about 3-4 times. Everyone's pain tolerance is different but it did feel like light stinging or pinching (they are needles after all!) but nothing too extreme.