
Focused facial areas
12-pin
Compare for a practitioner-led plan addressing localised texture, established indented acne scars or fine lines. A focused facial option when the treatment is planned for specific areas.












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DR. PEN REPLACEMENT CARTRIDGES
Replenish the cartridges that fit your A11, M8s, A9 or A8S. Choose the tip for your planned care, then the pack size that suits your supply needs.
20, 50 or 100 individually wrapped cartridges.
One selected type in every pack.
Replacement cartridges only. Pen and serum are not included.

START WITH YOUR DEVICE
This cartridge series uses a three-slot locking interface for the models listed above. Check the model printed on your pen and match the connection before opening a cartridge.
M8s is different from M8. A8S is different from A8. Other Dr. Pen models need their own confirmed cartridge match.
CHOOSE YOUR CARE CATEGORY
The numbered cartridges contain microneedles. Nano Round and Nano Square belong to the surface-skincare category. Start with the type of procedure you are planning, then compare the individual options.
Quick selection: focused facial areas → compare 12-pin; general facial texture and fine-line goals → compare 18-pin; a planned larger-area procedure → compare 24-, 36- and 42-pin; surface skincare and glow → compare Nano Round and Nano Square.

Focused facial areas
Compare for a practitioner-led plan addressing localised texture, established indented acne scars or fine lines. A focused facial option when the treatment is planned for specific areas.

General facial microneedling
A starting comparison for facial texture, fine lines and the appearance of pores or mild healed scars. Its listed facial uses overlap with 12-pin; it is not a guaranteed better or gentler treatment.

Neck, décolletage or other planned areas
Compare for a professional plan covering neck, décolletage or body texture. The A11-specific guidance groups it with larger-area options; suitability still depends on the area and procedure.

Larger-area microneedling
Compare alongside 24- and 42-pin for planned neck, décolletage or body-texture work. Choose this configuration when specified in the treatment plan, rather than treating the pin count as a strength level.

An alternative larger-area configuration
Compare with 24- and 36-pin for body-texture or stretch-mark appearance goals in a suitable professional procedure. Its use overlaps with those options; more pins do not establish greater depth or better results.

Surface-focused cosmetic skincare
Consider for a hydration-focused skincare routine and a smoother, more radiant-looking finish. The round contact shape is an alternative to Nano Square, rather than a numbered microneedling option.

Surface skincare with a square contact shape
Consider for the same surface-care and glow goals as Nano Round. Choose the contact shape specified in your routine; the available evidence does not establish superior results for either shape.
These are selection references from this cartridge family’s product guidance, not comparative clinical results. Uses overlap. Pin count alone does not determine treatment depth, comfort or results. Your practitioner should confirm the area, cartridge and settings.
Selection basis: A11-specific cartridge descriptions and the Dr. Pen cartridge comparison guide, reviewed 15 October 2026. General treatment context: American Academy of Dermatology.
THE DETAILS THAT MATTER
The anti-backflow structure does not replace correct handling or single-use hygiene. Nano tip shapes are shown in the guide; they are not numbered microneedling counts.

WHAT YOU RECEIVE
Your selected quantity of individually wrapped replacement cartridges, all in the same selected pin count or Nano shape.
Example: 18pin / 50pcs = 50 complete 18-pin cartridges.
A compatible Dr. Pen device, any suitable formulation, preparation and aftercare supplies, and appropriate disposal supplies.
Pen and serum are not included.
The available types are not supplied as a mixed assortment. Product images illustrate the cartridge range, not the contents of every pack.
BEFORE & AFTER EACH SESSION
Check the individual seal, label and cartridge condition. Do not use damaged, opened or expired items. Open immediately before use and avoid touching the tip.
Align the fitting and secure it according to your pen’s manual. Stop if it does not lock properly; forcing a cartridge can damage the connection.
Switch off before removal. Use a fresh cartridge for each session and never share. Dispose of used needle cartridges through the appropriate sharps route.
This is a handling overview, not a treatment protocol. Follow the supplied instructions for preparation, storage and use. Do not attempt to make a used cartridge reusable by cleaning it.
Healed indented acne scars, flat post-acne marks and active breakouts are different concerns. Do not needle active acne, open wounds, infection or irritated skin. A qualified practitioner can assess suitability and discuss realistic goals for texture, fine lines or healed scars.
Microneedling punctures the skin. Incorrect use can cause infection, scarring or lasting pigment changes. Nano surface care is not a substitute for scar treatment. Follow your practitioner’s advice on settings, formulations and aftercare.
GENUINE DR. PEN
elleinbeauty sells genuine Dr. Pen replacement cartridges. These consumables do not have individual authentication codes; the verification code supplied with a pen is separate.
If you have a question about an item, keep its packaging and contact elleinbeauty with your order details and a clear photo of the label.
HELP WITH YOUR NEXT PACK
This series is for Dr. Pen A11, M8s, A9 and A8S. Read the exact model printed on your device before ordering.
No. M8s (also written M8S) and M8 are different models. This listing is for the M8s cartridge series; choose model-specific cartridges for M8.
Those models are outside this listing’s confirmed compatibility. A8 and A8S are different model names. Do not force a similar-looking cartridge onto another pen.
No. Blue housings and identical pin counts can appear across different cartridge series. Match the device model and cartridge interface, not just the colour or number.
Contact elleinbeauty before ordering with a clear photo of the device model label and your existing cartridge connection. Keep personal details out of the photos.
These numbers identify the number of microneedles in the cartridge. For localised facial work, compare 12-pin; for general facial texture and fine-line goals, compare 18-pin. Compare 24-, 36- and 42-pin for a planned larger-area procedure. See the individual option cards above for context.
First separate healed indented scars from active acne and flat marks. For a targeted facial scar plan, compare 12-pin; for more general facial texture and mild healed-scarring goals, compare 18-pin. Scar type, skin condition and treatment technique matter more than a pin-count promise.
No. Flat discolouration and an indentation are different concerns and may need different care. A pin count cannot diagnose which one you have or guarantee that a mark will fade.
Do not use over active acne, open wounds, infected or irritated skin. Arrange an assessment before treating an area with current inflammation.
Compare 24-, 36- and 42-pin within a professional plan for the specific area and goal. Their listed uses overlap. A body-texture or stretch-mark goal does not make every body area suitable for needling.
Pin count alone does not establish any of these. Depth is a device setting; skin area, technique and individual response also affect the procedure. Do not increase settings to compensate for a different cartridge.
Nano is the surface-skincare category in this range. It is intended for cosmetic surface-care routines rather than replacing a skin-puncturing procedure for indented scars. Nano Round and Nano Square name contact shapes, not 12-, 18-, 24-, 36- or 42-pin counts.
No reliable comparison establishes that one delivers better skin results. Both are surface-care options; choose the shape specified in your routine.
Scalp use needs a separate professional assessment and a suitable device protocol. Neither a cartridge purchase nor a particular pin count is a promise of hair growth.
There is no single setting or schedule for every cartridge and person. Follow your exact pen’s instructions and a qualified practitioner’s plan. This pack does not set a treatment depth or frequency.
Choose 20pcs, 50pcs or 100pcs. These mean 20, 50 or 100 complete cartridges, respectively—not the number of individual needles. Each cartridge is individually wrapped.
No. Every cartridge in a pack is the one type selected in your order. For example, 18pin / 50pcs means 50 individually wrapped 18-pin cartridges.
This listing does not offer a mixed-pack option. Order separate packs if you need more than one type.
No. This is a replacement-cartridge pack only. The pen, serum, preparation supplies and aftercare products are not included.
The images show cartridge designs and available types. Your selected pack size determines the quantity supplied; the range image is not a mixed-pack packing list.
It means two packs of your selected configuration. For example, two 20pcs packs contain 40 cartridges of the selected type. Check both the pack size and cart quantity before checkout.
Switch the pen off. Check the model, cartridge and unopened wrapper first. Open immediately before use, align the cartridge’s three-slot fitting with the pen and secure it as directed in your model’s manual. Keep fingers away from the tip and do not force the connection.
Switch off the pen before removal. Release the fitting using your model’s instructions, avoid the used tip and dispose of the cartridge safely. Fit a new, unopened cartridge for the next session.
Stop. Recheck the exact device model and fitting, and inspect for damage. Do not force it or run the pen with a loose cartridge. Contact elleinbeauty with your order details and photos.
No. Use a new cartridge for each session, including Nano. Do not wash, disinfect or store a used cartridge for another session.
No. Never share a cartridge, even between people in the same household.
Check that the individual wrapper is intact and sealed, and that the cartridge is not damaged. Read any lot, expiry and sterilisation information on the supplied label. Do not use an expired item or one with missing, unreadable or compromised required labelling; contact us if in doubt.
Follow the supplied cartridge labelling and device instructions for preparation. Alcohol soaking does not make a used cartridge reusable or restore a compromised sterile barrier. Do not use a cartridge from a damaged or open wrapper.
This series incorporates an anti-backflow structure intended to limit liquid returning towards the pen. It does not replace single-use hygiene, correct fitting or device cleaning, and does not guarantee that contamination cannot occur.
This is a replacement tip, not a Hydra Pen reservoir cartridge. Do not fill the housing or assume it dispenses serum. Confirm that any separately used formulation is suitable for the planned procedure.
Keep them in their original individual wrappers and follow the storage conditions on the label. Protect the wrappers from moisture, damage and unnecessary handling.
Place used needle cartridges in an appropriate puncture-resistant sharps container and follow your local disposal rules. Do not leave exposed tips in household waste or recycling. Handle used Nano cartridges according to the applicable local rules and product instructions.
Yes. elleinbeauty sells genuine Dr. Pen replacement cartridges in this series.
These cartridges do not come with an individual authentication code. Absence of a cartridge code does not mean the product is counterfeit. Device verification codes are separate from these replacement consumables.
Do not use it. Keep the affected items and packaging, and contact elleinbeauty with your order number, selected type, quantity affected and clear photos of the wrapper and label.
Check your order confirmation and the labels on the delivered items. Contact elleinbeauty with your order number and photos so the discrepancy can be reviewed.
Check the store’s current return policy and contact elleinbeauty before sending items back. Eligibility depends on the policy and condition of the goods; this page does not promise returns for opened hygiene items.
Yes. Contact elleinbeauty for the current batch label and packaging details before ordering if these affect your purchase.