These cartridges are compatible with the Dr.Pen M8S, A8S, A9, and A11 microneedling pens. They are not cross-compatible with other Dr.Pen models such as the A6, M7, or H6. If you are unsure which cartridge fits your device, check the model number printed on your pen or packaging before purchasing.

We offer multiple pin configurations including 9-Pin, 12-Pin, 24-Pin, 36-Pin, 42-Pin, Nano-R, and Nano-S. Fewer pins (9–12) are ideal for targeting precise areas and deeper penetration, while higher pin counts (36–42) cover more surface area for an overall skin-smoothing effect. Nano-R and Nano-S cartridges use flat nano-needles suited for sensitive skin and enhanced serum delivery. Start with a lower pin count if you are new to microneedling.

Each cartridge is designed for single-use only. Reusing a cartridge — even on yourself — increases the risk of skin irritation, infection, and inconsistent results due to needle dulling. For best results and hygiene, always use a fresh cartridge at the start of every session.

For most users, once every 2–4 weeks is recommended to allow your skin adequate recovery time between sessions. If you are using Nano cartridges for lighter, superficial passes, you may be able to increase frequency slightly — but always listen to your skin. Avoid repeat sessions if you are still experiencing redness, dryness, or sensitivity from a previous treatment.

Hyaluronic acid serums, growth factor serums, and peptide-based products are ideal for use during or immediately after a session to maximize absorption. Avoid active ingredients like retinol, vitamin C, AHAs, BHAs, and benzoyl peroxide for at least 24–48 hours post-session, as they can cause irritation on freshly treated skin. Always use clean, fragrance-free products around the time of your session.

Sensation varies depending on needle depth, pin count, and individual pain tolerance. Most users describe it as a mild scratching or vibrating feeling at lower depths. For deeper settings or more sensitive areas, applying a topical numbing cream (such as one containing lidocaine) 20–30 minutes before your session can significantly improve comfort. Always remove the numbing cream fully before beginning your session.

Yes, each cartridge comes individually packaged and sterilized using EO (ethylene oxide) sterilization for safe, hygienic use straight out of the packaging. Do not remove the cartridge from its packaging until you are ready to begin your session, and never touch the needle tip with bare hands to maintain sterility.

Microneedling is not recommended for individuals with active breakouts, open wounds, eczema, psoriasis, rosacea, or cold sores in the treatment area. Those who are pregnant, nursing, undergoing chemotherapy, or taking blood-thinning medications should consult a healthcare professional before use. If you have a history of keloid scarring, please seek medical guidance prior to beginning any microneedling routine.

Mild redness and slight skin sensitivity are normal and typically subside within 12–48 hours. To soothe the skin, apply a gentle, fragrance-free moisturizer or aloe vera gel and avoid direct sun exposure. If redness persists beyond 72 hours, or if you notice swelling, unusual warmth, or signs of infection, discontinue use and consult a dermatologist. Always apply broad-spectrum SPF 30+ sunscreen when going outdoors after a session.

Purchasing a larger pack reduces your per-cartridge cost significantly and ensures you always have a fresh, sterile tip ready for your next session without reordering frequently. For users maintaining a regular every-2-to-4-week schedule, a 20-Pack covers approximately 5 months of sessions, while a 30-Pack provides close to 7–8 months of supply — making it the most cost-effective choice for consistent, long-term skin care routines.