How SkinPen depth control works
SkinPen sets needle depth mechanically. According to the FDA De Novo record, the device offers 11 depth settings from 0 to 2.5 mm in 0.25 mm increments, driven by a motor running at a single continuous speed of 7,000 RPM. There is no energy involved in reaching a given depth: the setting moves the needles, and the motor controls the puncture rate. This is the practical difference a clinic feels day to day, and it is why depth on a mechanical pen behaves differently from depth on a radiofrequency device.
The depth setting is a device parameter, not a treatment plan. How a practitioner uses the range, including pass count, spacing, and endpoint, is a clinical decision that depends on the patient and the indication. Pinova supplies the consumables rather than the protocol, so the guidance here describes what the device and its FDA labeling state, not how to treat a given case.
Depth as a mechanical function, not energy
On SkinPen, depth and energy are not linked because there is no energy to link. The needles reach a set depth and create micro-channels; nothing is heated. Radiofrequency microneedling works differently: the depth setting positions the needles, and the device then delivers radiofrequency energy at that level, so depth and thermal effect are part of the same dial. That is why a depth number on SkinPen is not comparable to a depth number on an RF device, even when the numbers match. The fuller treatment of that contrast is in the comparison of how mechanical depth differs from RF energy delivery.
The 1.5 mm clinical limit and the FDA recommended depths
The device can be set as high as 2.5 mm, but that mechanical range is not the same as the evaluated range. The FDA summary states that safety and effectiveness for settings greater than 1.5 mm have not been evaluated, and the labeling carries that precaution. The clear indication is specific: improving the appearance of facial acne scars in adults aged 22 or older. The wider mechanical range exists to accommodate variation in skin and scar thickness, not to extend the cleared use.
The FDA labeling includes suggested procedure depths by facial area. These are presented as guidelines, and the orbital region carries an explicit limit.
| Facial area | Suggested depth (FDA labeling) |
|---|---|
| Forehead | 0.25 to 1.0 mm |
| Nose | 0.25 to 0.75 mm |
| Around the orbital rim | 0.25 to 0.5 mm (around, not within, the rim) |
| Facial acne scars | Up to 1.5 mm |
These are proposed guidelines from the device labeling, not a prescription. Final depth selection, and whether a given area or patient is suitable at all, is a clinical judgment for the treating practitioner. The point for a clinic buying into SkinPen is that the cleared, evaluated working range sits at or below 1.5 mm, and that the labeling itself ties depth to area and to the acne-scar indication.
Cartridges and protocol
Depth is delivered through the single-use cartridge, so depth practice and consumable practice are linked. One sterile cartridge is used per treatment, and the cartridge generation has to match the handpiece in service. A clinic planning protocols across a treatment series is also planning cartridge supply. Pinova carries professionally sourced SkinPen consumables; compatibility is based on industry-standard usage and clinical experience, and a cartridge should be confirmed against the specific handpiece before ordering. The sterility and configuration details are in the guide to single-use cartridges per protocol, the device itself is covered in what SkinPen is and how it works, and current stock is listed under single-use SkinPen cartridges.
Training and certification
SkinPen is a prescription-use device, and the manufacturer provides training materials and a certification path for new users, including guidance on the location of critical nerves and blood vessels and on the depth settings determined to be safe. That training sits with the manufacturer and the clinic, not with a consumables supplier: Pinova does not certify operators or set clinical protocol. For a clinic, the relevant point is that operator training is part of how the device is intended to be used, and that a buyer should account for it when bringing SkinPen into a practice rather than treating the device as plug-and-play.
Frequently asked questions
How deep does SkinPen go?
The device offers 11 settings from 0 to 2.5 mm in 0.25 mm increments. However, the FDA summary states that safety and effectiveness above 1.5 mm have not been evaluated, so the evaluated working range sits at or below 1.5 mm.
Is the depth set by the needles or by energy?
By the needles. SkinPen is mechanical: the setting moves the needles to a depth, and the motor controls the puncture rate. No energy is delivered, which is the key difference from radiofrequency microneedling.
Is there a SkinPen depth chart?
Yes. The FDA labeling lists suggested procedure depths by facial area: forehead 0.25 to 1.0 mm, nose 0.25 to 0.75 mm, around the orbital rim 0.25 to 0.5 mm, and facial acne scars up to 1.5 mm. These are guidelines; final selection is a clinical decision.
Does SkinPen require training or certification?
SkinPen is a prescription-use device, and the manufacturer provides training and certification for new users. Operator training is part of the intended use; a consumables supplier does not provide it.
