How many needles are in a 0.5 mm derma roller?

Author: Joelle Abbott Jr.  |  Last update: Monday, September 22, 2025

KOI BEAUTY Derma Roller 0.5mm - 200 REAL NEEDLE, Professional Microneedling Roller for Hair &Beard Growth at Home, Micro Needling Roller Titanium for Face Body Scalp for Women Men.

Is a 0.5 mm derma roller enough?

Absolutely! The Derma Roller 0.5 mm can be used on most parts of the body, including the face, scalp, and beard area. However, avoid sensitive areas such as the eyes or any irritated skin.

What happens if you microneedle too deep?

Yes, you need to be careful with the depth of treatment with RF microneedling. If you treat 'too deep' you can theoretically break down fat.

Is 12 or 36 needles better for microneedling scalp?

For microneedling on the scalp, it is advised to use a cartridge with more needles: the 24-pin or the 36-pin cartridge. This is to suit the skin of the scalp. For the needle length, it should ideally be between 0.5mm to 1.5mm for scalp treatment.

Can derma roller regrow hairlines?

The good news is that derma rolling has emerged as an effective way to boost hair regrowth and thickness without surgery. According to our experience supplying medical professionals, derma rolling can thicken hair, reverse miniaturization, and revive dormant follicles when used properly.

How microneedling works

Can you use .5 Dermaroller everyday?

Yes, you can use a 0.5 mm derma roller every day for hair growth, but it's essential to follow some guidelines to ensure safe and effective use. A 0.5 mm derma roller is a relatively gentle device, and it can be used daily to promote hair growth and improve the overall health of your scalp.

What size microneedle do professionals use?

For treating acne and other scars as a routine, a needle length of 1.5–2 mm is usually used. When microneedling is used as a procedure to treat ageing skin and wrinkles, the needle length of 0.5 mm or 1.0 mm is usually recommended.

Should I apply minoxidil after dermarolling?

However, it's crucial to follow the correct timing and procedures to avoid irritation or unwanted side effects. Most experts recommend waiting for at least 12-24 hours after dermarolling before applying minoxidil to allow your skin time to heal and reduce the risk of irritation.

Do I need numbing cream for microneedling?

We recommend using a numbing cream for every session for the most comfortable experience. Can I get microneedling if I am Pregnant? It is not generally recommended, not because it is not safe, but because there is limited research on the procedure during pregnancy.

Can you overdo microneedling?

Even though microneedling benefits the skin, overdoing it can cause serious risks, including skin irritation, redness, and inflammation, leading to discomfort. Overdoing treatments or not allowing ample time between sessions can lead to scarring and even hyperpigmentation.

Which size derma roller is best for hair regrowth?

Which derma roller size should you use? The derma roller size that is best for hair growth is usually between 0.5 mm to 1.5 mm. A needle length of 0.5 mm to 1.0 mm is usually recommended for at-home use, and longer needles may require professional guidance to avoid injury.

How deep can estheticians do microneedling?

In California, aestheticians cannot penetrate the skin and should not perform microneedling. This can also be done at home, but products available likely do not go as deep into the skin's surface as those done by a professional.

How to use a 0.5 mm derma roller?

Hold the skin tight, in small sections, roll back and forth 4-5 times. Then, lift the roller and change direction: roll up and down and diagonal one way then the other, repeat over each section.

What size microneedle for lips?

For lips, Phan recommends needles no larger than 0.75 mm since the skin there is so delicate.

Does at home microneedling work?

The use of at-home microneedling treatments has become increasingly popular as an effective way to improve skin texture, reduce wrinkles and scars. However, this type of treatment can also present some risks that should be considered before deciding on whether or not the procedure is right for you.

Does Dermarolling speed up minoxidil?

That is because the derma roller creates tiny puncture wounds in the scalp, which help increase the absorption of topical medication. That allows the Minoxidil to get in your bloodstream faster and in larger quantities, enhancing its effect.

What are the side effects of minoxidil?

The most common side effects of topical minoxidil application are redness and irritation of the skin. Rarely, patients have reported headaches, palpitations, and dizziness. Oral minoxidil side effects include palpitations, dizziness, low blood pressure, chest pain, headaches, and swelling of the legs.

How to increase minoxidil effectiveness?

Use the same concentration of minoxidil, but use more of it... or use it more often. For some patients, using more minoxidil allows more to get into the scalp. This is especially true for males using minoxidil and may be true for some women as well.

How often do you microneedle 0.5 mm?

Dr. Mohta advises you to use your derma roller once a week in the beginning and gradually increase the frequency to two or three times per week. Limit the rolling time to a maximum of 2 minutes during each session. If you are using a derma roller over 0.5mm in length, don't use it more than once every week.

Can I microneedle my armpits?

This treatment can be used for acne scarring, aging skin, hyperpigmentation, skin tightening. This can be used on the face, neck, décolletage and now the underarm area. Radiofrequency micro needling is also used to destroy sweat glands that contribute to excessive sweating.

What are the long term effects of microneedling?

Despite its many advantages, there are some risks associated with microneedling such as infection, inflammation and discoloration. Long-term effects may include scarring or changes in pigmentation so caution should be taken when undergoing this treatment.

Is .5mm derma roller safe?

Home-use dermarollers have a needle depth of 0.5 mm, perfect for safe and superficial treatments. In contrast, clinic-use dermarollers penetrate deeper, with needles ranging from 1.0 mm to 1.5 mm, offering more effective results but requiring professional expertise to ensure safety.

Can you overdo Dermarolling?

Pressing too hard or repeatedly targeting the same areas can create deeper pathways or tears in the skin, which will not only take longer to heal, but will also leave the skin open to infection or reaction to any products that are applied.

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