Dr. Pen M8S / A11 / A8S / A9 Cartridges - 10 Pack 42 Needles

These Dr. Pen A11 cartridges are compatible with the M8S, A11, A8S, and A9 models. They do not fit previous or incompatible models, such as the M7 or M5. Always check your pen model before purchasing cartridges to ensure the greatest performance and safety.

Each Dr. Pen A11 42 needles cartridge contains 42 stainless steel micro-needles that are effective for treating minor acne scars, stretch marks, texture concerns, and overall skin rejuvenation. The dense needle pattern effectively covers greater regions, making it ideal for both full-face and body treatments.

First, turn your pen off. Gently twist and remove the old cartridge. Align the new Dr. Pen A11 cartridges with the pen head and insert them until they snap securely into place. Check for stability before turning on the device and start treatment to ensure a smooth, safe experience.

To ensure optimal hygiene and performance, change the Dr Pen A9 cartridges after roughly 10 to 15 passes over the skin. Each use wears down the needles a bit, so switching to a new cartridge ensures even depth, cleaner punctures, and better overall results. In most cases, 1 cartridge is enough for 1 procedure.

For use with Dr Pen A9 42 needles cartridges, choose a depth of 0.5 to 1.0 mm for face treatments and 1.0 to 1.5 mm for thicker skin areas like the body. These depths are designed to be comfortable while still boosting collagen. They’re deep enough to be effective without causing unnecessary damage or long recovery time. But remember: treatment with needle length of 1 mm and above should be performed by trained professionals only.

Keep unopened Dr. Pen A9 cartridges in a cool, dry place, ideally under 25°C (77°F). Store them in their sealed packaging to maintain their sterility and prevent contamination. Avoid direct sunlight and moisture to preserve needle integrity and hygiene until you're ready to use them.

After treatment, immediately place used Dr. Pen cartridges into a puncture-resistant container or sharps box. Seal the box once full and dispose of it according to your local medical-waste regulations. Safe disposal prevents accidental needlesticks and keeps your home environment hygienic.