Microneedling is a versatile aesthetic treatment that relies not only on correct depth and technique, but also on appropriate needle pin configuration. Selecting the correct cartridge is essential for achieving safe, effective, and targeted outcomes across different treatment areas and indications.
This guide explains the most commonly used microneedling pin configurations and how they are applied in clinical and aesthetic practice.
Microneedling cartridges contain multiple fine, sterile needles arranged in specific configurations (for example, 11, 16, 24, or 36 pins). The number of pins influences:
• Needle density and coverage
• Precision versus diffusion of microchannels
• Depth consistency and tissue response
• Treatment indication (face, scalp, or body)
Understanding these differences allows practitioners to tailor treatments to individual client needs while minimising trauma and downtime.11
Best for precision and targeted correctionThe 11-pin cartridge is designed for controlled, focused treatments where accuracy is paramount.
Common Uses:
• Acne scarring (ice pick, boxcar scars)
• Fine scar tissue
• Localised hyperpigmentation
• Smaller facial areas (periorbital, perioral, nasal folds)
Clinical Advantage
Fewer needles allow for greater precision and depth control, making this configuration ideal for detailed corrective work and scar remodelling without excessive epidermal disruption.
Best for facial rejuvenation and texture refinement
The 16-pin cartridge is one of the most commonly used configurations in aesthetic practice.
Common Uses:
• Fine lines and wrinkles
• Enlarged pores
• Uneven skin texture
• General facial rejuvenation
Clinical Advantage:
This configuration provides a balance between coverage and control, stimulating collagen and elastin production while maintaining client comfort and manageable downtime.
Normal text.Best for scalp and hair restoration treatments
The 24-pin cartridge is typically selected for scalp microneedling protocols.
Common Uses:
• Hair thinning and alopecia support
• Scalp circulation stimulation
• Enhancing topical absorption in hair regrowth treatments
Clinical Advantage:
A higher pin count allows for uniform microchannel distribution across the scalp, promoting increased blood flow and follicular stimulation while maintaining efficiency over larger surface areas.
Best for body treatments and large surface areas
The 36-pin cartridge is designed for high coverage treatments, particularly on the body.
Common Uses:
• Stretch marks (striae)
• Body scarring
• Cellulite
• Skin laxity on arms, abdomen, thighs, and buttocks
Clinical Advantage:
This configuration supports collagen induction and dermal remodelling across broader areas, making treatments more time-efficient while delivering consistent results.
Choosing the Right Pin Configuration: Key ConsiderationsWhen selecting a microneedling cartridge, practitioners should assess:
• Treatment area (face, scalp, body)
• Skin thickness and sensitivity
• Client concern and treatment goal
• Desired depth and intensity
• Practitioner experience and technique
Using an inappropriate pin configuration can increase the risk of trauma, post-inflammatory hyperpigmentation, or suboptimal results.
The
Advanced Learning Academy offers various courses to support Practitioners in Microneedling. Online, face to face, CPD and regulated training is available. Click
here to email us for details or view the and browse the website course pages or contact us at hello@advancedlearningacademy.co.uk - our contact us page is
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