Nano or Micro? Choosing the Right Cartridge and Treatment Schedule
Choose a nano cartridge when the goal is a gentler, surface-focused skincare session. Choose a micro cartridge when the plan calls for microneedling to address concerns such as the appearance of fine lines, uneven texture, or acne scars. The choice starts with the patient's goal and skin assessment. [1,2]
For acupuncturists, offering both creates flexibility: a patient seeking a light skin refresh may need a different appointment from someone beginning a longer-term microneedling series.
When to choose nano instead of micro
The goal is a surface refresh. Nano tips work more superficially than micro needles. They can suit a facial focused on the appearance of dullness and a refreshed skin surface, rather than a collagen-focused microneedling plan. [1,4]
The patient prefers a gentler appointment. When the skin is suitable for treatment, nano can offer an option with less expected recovery time than micro. Discuss the actual treatment and topical products involved rather than promising zero redness or irritation. [1]
The plan calls for more frequent surface care. Nano may fit a recurring facial schedule when weekly treatment is appropriate. That does not mean every patient needs weekly visits, or that nano automatically belongs between every pair of micro sessions. [4]
When micro is the better match
Microneedling creates controlled punctures that stimulate the skin's repair response and collagen production. It may be considered for the appearance of fine lines, wrinkles, acne scars, and uneven texture after an appropriate assessment. Improvement develops over time, often across a series of sessions. [2]
For a patient whose main concern is an acne scar, describe why a microneedling plan may be relevant. For someone seeking a lighter facial refresh, discuss nano. Present them as different services with different goals; avoid promising the same outcome from both.
| Planning question | Nano | Micro |
|---|---|---|
| What is the main focus? | Surface-focused cosmetic care and a refreshed appearance. | Microneedling for texture, fine lines, and scar appearance. |
| What recovery should be discussed? | Usually less expected downtime; individual responses vary. | Allow for post-treatment redness, sensitivity, and aftercare. |
| What interval can guide planning? | Weekly may be appropriate for the chosen protocol. | No more than once a month; allow longer when needed. |
Micro scheduling follows AcuMicro instructor guidance; other comparisons draw on sources 1, 2, and 4. The intervals do not replace individual assessment.
How often can you do microneedling?
AcuMicro's instructor guidance is to microneedle no more than once a month. Plan the treatment series around that spacing and review the skin's response before each session.
Some patients need longer between appointments, depending on treatment intensity, the area treated, and recovery. Redness fading is not a reason to bring the next micro session forward. If the skin has not recovered by the planned visit, reassess and postpone treatment.
How often can you do nano?
Nano can be scheduled about once a week in suitable treatment plans. Weekly nano use is described in a National University of Health Sciences student recap of Josh Nerenberg's teaching. Use that as educational context alongside the current cartridge instructions and the patient's skin response. [4]
A weekly option is not a requirement. Longer spacing can be appropriate, and the word "nano" alone does not establish a schedule for every cartridge or combination facial.
Can nano fit between micro appointments?
It may be considered after the skin has recovered, if the practitioner determines it fits the overall plan. Do not automatically book nano seven days after micro just because nano may be used weekly on its own.
Ongoing redness, tenderness, peeling, or irritation is a reason to reassess before either treatment. Active infection, sunburn, or inflamed acne also calls for assessment rather than simply switching to nano. This is a planning guide, not a complete suitability checklist. [2,5]
Keep the cartridge and topical plan specific
AcuMicro's nano cartridge tips are single-use. Use a fresh cartridge for each session, and follow the instructions for the specific cartridge and topical products selected. [6]
For hands-on technique and treatment planning, explore AcuMicro's practitioner workshops. Our micro-versus-nano overview provides additional background.
Sources and further reading
- AcuMicro. Microneedling vs Nano Needling: What Acupuncturists Need to Know.
- Cleveland Clinic. Microneedling.
- AcuMicro. Frequently Asked Questions.
- National University of Health Sciences, Monique Carter. Micro-Needling for Acupuncturists (student workshop recap, January 26, 2024).
- American Academy of Dermatology. Microneedling can fade scars, uneven skin tone, and more.
- AcuMicro. 30 Pack: Nano-Needle Cartridge Tips.