How does microneedling affect the skin?

Microneedling causes small injuries, helping the body activate the skin healing process, stimulating the production of collagen and elastin to help firm and smooth the skin.

Dr. Dang Thi Ngoc Bich, a specialist in Dermatology - Skin Aesthetics, Tam Anh General Hospital, Ho Chi Minh City, said that Dermaroller is being widely used to fight signs of aging such as: loss of skin firmness, appearance of wrinkles, reduction of pore size, reduction of oil production (sebum), improvement of stretch marks, acne, dark scars...

Microneedling is a minimally invasive procedure for the skin in which dermatologists use thin needles to create tiny holes in the skin's surface, without damaging the outer layer of the skin, helping to break down scar tissue. The controlled injuries to the skin result in superficial bleeding, which triggers the body's wound-healing response, causing the skin to release growth factors that stimulate the formation of new blood vessels, creating more collagen. After 5 days, the body's own collagen will deposit in the treated area, making the skin firmer and reducing the appearance of fine lines and wrinkles.

If the skin is treated with 4 microneedling sessions, 1 month apart, it can increase the body's collagen by 400%, helping to regenerate the skin. This method is usually applied on the face but can also be applied on the legs, back, neck or other areas of aging or damaged skin.

Dr. Dang Thi Ngoc Bich (left) uses microneedling to help regenerate skin and stimulate hair growth. Photo: Provided by the hospital — Dr. Dang Thi Ngoc Bich (left) uses microneedling to help regenerate skin and stimulate hair growth. Photo: *Provided by the hospital*

Microneedling is now widely used to treat problems such as:

Treat pitted scars

Acne scars can form from cystic acne or from squeezing acne, and can last for months or years. Microneedling uses tiny needles to puncture the skin to help break up acne scar tissue, cut off fibrous scars, and contracted scar tissue under the skin, helping the skin create more collagen to heal the wound. The newly formed collagen helps smooth the skin's surface, filling in crow's feet, wrinkles, and scars. The American Academy of Dermatology indicates that microneedling is effective for acne scars, and is better when used in combination with vitamin C or PRP (platelet-rich plasma).

Microneedling is safe for darker skin tones, does not damage or remove the outer layer of skin, and is safe for thin and sensitive skin. Side effects that may occur when microneedling for acne scars include: redness, bruising, inflammation. However, these signs will disappear within a few days.

During the first few days after microneedling, avoid direct exposure to sunlight and exercise. Do not use exfoliating products or skin care products containing alcohol because they affect the skin.

Microneedling is effective in treating mild pitted scars, relatively low cost, safe, does not require much recovery time, improves skin conditions such as: dark spots, brightens skin, evens skin tone, reduces wrinkles, rejuvenates skin.

Treatment of large pores

Microneedling to treat large pores is a pore-minimizing treatment that uses rollers with many tiny needles to create damage on the skin's surface, helping to stimulate the regeneration process and produce collagen for the skin. Pores are smaller after each treatment, while improving other skin problems such as: treating freckles, reducing dark spots, regenerating skin...

Melasma treatment

The microneedling method for treating melasma uses a specialized micro-roller, measuring 0.25-0.5mm, to create small wounds on the skin's surface to stimulate cells to produce collagen, along with injecting drugs, stem cells, and platelet-rich plasma into the skin. These substances will penetrate deep into the skin, regenerate the skin structure, break down and eliminate melanin pigments, form new skin, and restore skin color.

The advantages of this method are that it does not leave scars, does not damage the skin, increases collagen production for the skin, regenerates deeply from the inside, and works with a small, thin needle of moderate length, so it works quickly, reaches the right skin layer that needs treatment, and the skin recovers quickly and effectively after each stage of treatment.

Dr. Dang Thi Ngoc Bich noted that the needle rolling method helps regenerate and improve the skin, but patients need to go to a Dermatology - Cosmetic Dermatology specialist to get advice on skin condition and appropriate treatment. Patients should not arbitrarily roll needles at home to avoid side effects, infections or scarring.

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