Microneedling has established itself as one of the most effective solutions for stimulating hair growth and combating hair loss. But with the tools available on the market, one question constantly arises: should you choose a dermastamp or a dermaroller?

Both devices are based on the same scientific principle, but their application method, precision, and results differ significantly, especially when used on the scalp. This comparison will help you make the right choice.

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Why does microneedling stimulate hair growth?

Hair microneedling involves creating controlled micro-perforations on the surface of the scalp using fine needles. This mechanism triggers several natural reactions beneficial for growth:

• an increase in blood circulation in the scalp

• the release of growth factors essential for cell regeneration

• direct stimulation of dormant or weakened hair follicles

This process reactivates follicular activity and promotes a better anagen phase (growth) of the hair. Clinical studies also show that microneedling is even more effective when combined with a targeted hair serum, as the micro-channels created significantly improve the penetration of active ingredients to the roots.

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The dermastamp: precision and control for the scalp

The dermastamp works by vertical pressure: the tool is applied directly to the scalp, then removed before being repositioned on another area.

Advantages of the dermastamp

This method offers several major advantages for hair use:

• Right-angle penetration: the needles enter the skin perpendicularly, ensuring uniform and controlled stimulation

• No risk of breakage: without a gliding movement, hair is neither snagged nor pulled

• Precise targeting: it allows specific treatment of areas affected by hair loss (temples, parting, top of the head, crown)

• Regular micro-channels: clean penetration promotes optimal absorption of subsequently applied active ingredients

This precision is particularly useful in the context of localized hair loss or targeted density loss, common during female hair loss.

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The dermaroller: a more global action but less suitable

The dermaroller comes in the form of a roller covered with micro-needles that are glided over the scalp.

Limitations of the dermaroller on hair

Its main advantage is to quickly cover large areas. However, its mechanics present notable drawbacks on the scalp:

• Variable penetration angle: the needles enter the skin at an angle, making stimulation less uniform

• Risk of snagging: the rolling motion can pull on the hair, especially if it is not very short

• Discomfort and possible breakage: repeated pulling can cause discomfort and even weaken the hair fiber

The dermaroller remains an effective tool, but it is generally less suitable for hair use than the dermastamp, especially for long hair.

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Dermastamp vs dermaroller: comparative table

In most cases, the dermastamp is the most suitable solution for a hair routine, especially when the hair is not shaved.

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What needle depth to choose for the scalp?

Needle depth directly influences the effectiveness and comfort of the microneedling session.

• 0.25 mm to 0.5 mm: ideal depth for regular use. It stimulates the scalp while limiting irritation and improves the penetration of topical treatments.

• 0.5 mm to 1 mm: more intense stimulation, acting more on regeneration mechanisms. This range is frequently used in clinical studies on hair growth.

• Beyond 1 mm: more technical use, generally reserved for a professional setting (dermatology clinic).

It is advisable to start with a moderate depth and gradually adjust according to your scalp's tolerance.

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How to use a dermastamp effectively?

To obtain visible and lasting results, the application method is essential.

Before the session

The scalp must be clean and dry. The tool must be thoroughly disinfected with isopropyl alcohol before each use to avoid any risk of infection.

During the session

Separate the hair to expose the areas to be treated. Apply successive and controlled pressure, uniformly covering the area with several crossed passes (vertical then horizontal).

After the session

Slight redness may appear: this is normal and a sign that the stimulation was sufficient. It is precisely at this moment that serum application is most effective, as the micro-channels are open to absorb the active ingredients.

Recommended frequency

One to three sessions per week are sufficient. More frequent use does not provide additional benefits and may, on the contrary, irritate the scalp.

💡 The HACT No.1 Dermastamp was specifically designed for the scalp, with an optimized needle depth to safely stimulate growth. Discover the Dermastamp No.1 →

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The importance of combining an anti-hair loss serum

Microneedling multiplies the effectiveness of subsequently applied treatments. Micro-channels allow direct penetration of active ingredients to the follicles, where they can truly act.

Certain ingredients are particularly interesting in this context:

• bioactive peptides (such as Capixyl or EMortal Pep), which stimulate follicular activity

• caffeine, which promotes local microcirculation

• niacinamide, which soothes and strengthens the scalp

• Redensyl, known for reactivating follicle stem cells

The combination of microneedling + targeted serum significantly optimizes results on hair density and quality.

💡 The HACT No.1 Anti-Hair Loss Serum combines Redensyl 3%, Capixyl 5%, Baicapil 4%, Caffeine and EMortal Pep 3% for comprehensive action after each dermastamp session. Discover the Anti-Hair Loss Serum No.1 →

Dermastamp or dermaroller: the verdict

For use on the scalp, the dermastamp is the most suitable choice. It offers better precision, superior comfort, and complete compatibility with the presence of hair. The dermaroller, however, remains relevant for the face or body, but less recommended for a hair routine.

Microneedling is a truly effective method for stimulating hair growth, provided it is practiced regularly and combined with appropriate treatments. Implementing a consistent routine is essential to obtain visible results in the long term — generally after 3 to 6 months of use.