Bio Roller G4 Microneedling for Skin and Hair Growth (1200 Pins)

Q: There are so many models (M7S, M8, M8S, etc.). Which one should I choose?

A: Choosing the right model depends on your skincare goals:

• Dr. Pen M8S (Top Pick): The upgraded version of the classic M8. It features a smart LED screen, 16-pin fine needles for less pain, and a low battery warning. Perfect for beginners and home users.
• Dr. Pen M8 (Best Seller): The global standard for microneedling. Reliable, effective, and uses fine gauge needles.
• Dr. Pen M9 / A11: Newer models featuring large ergonomic designs and screens.Recommendation: If you are new to microneedling, the Dr. Pen M8S or M8 are the best places to start.

Q: Should I get the Wired or Wireless model?

A: Most of our popular models (like the M8 and M8S) are actually "hybrid"—meaning the Wireless version can also be used while plugged in.

• Wireless: Offers total freedom of movement. Great for bathroom use where outlets might be far away.
• Wired: Ensures constant peak power output but requires you to be near a power outlet.
• CHUSE Beauty recommends: Go for the Wireless model for maximum flexibility.

Q: Does microneedling hurt?

A: It depends on the needle depth setting:

• Shallow (0.25mm - 0.5mm): Minimal discomfort, feels like a vibrating toothbrush or light scratch against the skin.
• Deep (1.0mm+): Can be uncomfortable. We recommend consulting a professional or using a numbing cream if you plan to treat deep scars.

Q: How often should I use my device?

A: Skin recovery is key to results. Do not overuse!

• Nano Needles: Can be used weekly (for serum infusion).
• 0.25mm - 0.5mm: Every 2 weeks.
• 1.0mm and deeper: Once every 4 to 6 weeks.Your skin needs time to produce collagen and heal.

Q: What serum should I use while microneedling?

A: We highly recommend using a pure Hyaluronic Acid (HA) serum during the treatment. It provides the necessary "slip" for the pen to glide over the skin and hydrates deeply.

• Warning: Do NOT use active ingredients like Vitamin C, Retinol (Vitamin A), or Acids (AHAs/BHAs) during the treatment, as this can cause irritation or reaction. Apply these only after your skin has healed.

Q: What are the differences between 11, 16, 24, 36, 42, and Nano needles?

A: Choosing the right cartridge is key to achieving your desired results. Here is a breakdown of the different types:

• 11 Pins / 12 Pins / 16 Pins/18 Pins (Deep Texture & Precision):Best for: Deep wrinkles, deep texture issues (such as acne marks), and body areas (such as stretch marks).How it works: These cartridges have fewer needles with wider spacing, allowing for more targeted penetration.Note: The 16-pin/18-pin cartridge is specific to newer models like the M8 and M8S, offering finer needles for less discomfort.
• 24 Pins (Hybrid):Best for: General face and neck rejuvenation.How it works: A balanced option that offers more coverage than the 11-pin but deeper targeting than the 36-pin.
• 36 Pins / 42 Pins (Smoothing & Pores):Best for: General anti-aging, smoothing fine lines, tightening the appearance of pores, and improving uneven skin tone/discoloration.How it works: These have a high density of fine needles. They are the most popular choice for overall facial skin improvement and increasing serum absorption.
• Nano Needles (Non-Invasive Glow & Infusion):Best for: Sensitive skin, daily serum infusion, "BB Glow" treatments, and delicate areas (eyes/lips).How it works: Nano cartridges do not pierce the skin. They use microscopic silicone or steel tips to massage product into the epidermis without pain or downtime.Round Nano: Best for full-face serum infusion.3D / 5D Nano: Best for hard-to-reach contours like around the nose, eyes, and lips.

Q: Can I reuse the needle cartridges?

A: No. Cartridges are designed for single-use only to ensure hygiene and safety. Reusing cartridges can lead to infection and skin damage due to dull needles. Please discard the cartridge after every session.

Q: Are the cartridges universal?

A: No. Cartridges are model-specific.

Q: Are your products authentic?

A: Yes, 100% Authentic. CHUSE Beauty sells genuine devices that come with a verification code on the box. You can verify the authenticity on the manufacturer's official website.

Q: Do you offer a warranty?

A: Yes. We offer a 1-Year Warranty on all device handsets covering manufacturing defects.