It depends on the area and level of coverage you need. The 11-Pin is ideal for targeted, precise work on smaller areas such as around the nose or lips. The 16-Pin offers slightly wider coverage while keeping precision, making it a popular all-purpose pick for routine facial sessions. The 24-Pin and 36-Pin are well-suited for broader areas like cheeks and forehead, delivering more coverage per pass. The 42-Pin is the highest-density option, best for full-face sessions where efficiency is the priority. For a gentler, non-invasive approach focused on helping serums absorb and improving overall skin texture, the Nano-R (round tip) and Nano-S (square tip) are excellent choices — the Nano-R works well on general facial areas, while the Nano-S is preferred for delicate zones like under the eyes.

No. These cartridges are designed exclusively for the Dr.Pen A6S microneedling pen and are not interchangeable with other Dr.Pen models such as the A6, A8S, M8S, or H6. Each Dr.Pen model uses a proprietary cartridge connector, so using the wrong cartridge may result in a poor fit, inconsistent needle depth, or device damage. Please confirm your pen model is the A6S before ordering. If you own a different model, please visit our store to find the matching replacement cartridges.

No. Each cartridge is designed for single use only and must be discarded safely after every session. Reusing a cartridge poses a serious hygiene risk — the needles become dull after one pass, which reduces performance and can cause unnecessary skin irritation. More importantly, used cartridges cannot be effectively sterilized at home, increasing the risk of skin infections. Always attach a fresh, sealed cartridge at the start of each new session. Our 20-Pack and 30-Pack options are a cost-effective way to ensure you always have a clean cartridge ready.

You should replace your cartridge if you notice increased skin drag, uneven needle penetration, visible needle bending, or if the cartridge has been in use for more than one session. Since A6S cartridges are single-use, you should never continue a session with a previously used tip regardless of how it feels. If you're doing multiple sessions in a week, plan to use one fresh cartridge per session. For extended or full-body sessions, monitor for any change in glide feel — a new cartridge should move smoothly across the skin with consistent resistance.

The 30-Pack ($46.50) offers the best per-unit value at approximately $1.55 per cartridge, compared to $1.63 per cartridge in the 20-Pack ($32.50) and $1.89 in the 10-Pack ($18.88). If you use your A6S once or twice per week, a 30-Pack typically lasts 3 to 4 months, making it the most economical choice for regular users. The 10-Pack is a great starting option if you're new to microneedling and want to try different tip types before committing to a larger quantity. The 20-Pack strikes a balance for moderate users who want a reliable supply without overstocking.