How far can PRP skin regeneration therapy change your skin? The real potential and limitations of a blood-derived treatment

PRP skin regeneration therapy involves extracting platelets concentrated from your own blood (platelet-rich plasma) and injecting them into the skin to target fine lines and loss of firmness.[1][2]According to guidelines from the Japanese Society of Plastic Surgeons, treatment using PRP alone for facial wrinkles and sagging (skin laxity) is weakly recommended, as many reports indicate it is effective.[3]However, most research is small-scale, methods and dosages are not standardized, and the magnitude of effects remains unclear.[1][2].

What does PRP do in the skin?

Platelets contain many growth factors that work during wound healing.[4]When PRP is introduced into the skin, fibroblasts (collagen-producing cells) are activated, and it is believed that the skin's structural foundation is rebuilt.[4][2].

The material comes from your own blood; blood drawn is processed to create PRP.[4]Reports also indicate increased skin luster and moisture, not just reduction in wrinkles.[2].

What concerns is it used for?

It is primarily used for fine lines, skin texture, reduced firmness, and acne scar indentations.[1]Studies have also targeted under-eye dark circles and crow's feet.[5].

In a review of 11 clinical trials using PRP alone, 4 studies showed improvement in wrinkles and skin texture.[2].

Where are the limits of effectiveness?

The biggest limitation is that we cannot yet clearly state the magnitude of effects. A review of 36 studies involving 3,172 people found improvement reported in many studies; however, studies were predominantly observational and evaluation methods were not standardized.[1].

This review concludes that clinical evidence remains quite limited.[1]Variation in platelet concentration, preparation methods, and individual differences in response also contribute to inconsistent results.[6].

Professional journals have also issued cautions against PRP being advertised as if it "works for everything."[7].

Does combining it with needles or lasers make a difference?

For acne scars, PRP is more often used as a supplement to treatments that create small wounds in the skin using needles or lasers, rather than as the primary treatment.[8]Research shows that adding PRP to microneedling (which creates small holes in the skin with fine needles) results in less redness and swelling than needling alone.[1].

On the other hand, combining it with fractional carbon dioxide laser shows unclear additional benefit, and some reports indicate increased side effects and downtime (the period for swelling and redness to subside).[9]In a study of 22 Korean women, adding PRP to laser increased skin elasticity and satisfaction, but the difference in appearance was not clearly evident.[4].

What are the side effects and risks to be aware of?

The most common are bruising and swelling from injection, with rare reports of small bumps or skin peeling.[2]With injection, care must be taken to avoid entering blood vessels.[3].

Cases of extensive rash from herpes simplex virus have been reported after combining needle treatment with PRP.[10]Additionally, PRP supplemented with growth factors (bFGF) is associated with more complications such as scarring or raised lesions, and is not readily recommended.[3].

How many sessions are typically recommended?

No fixed standard for the number of sessions has been established.[2]In a 107-person study targeting scar tissue, combined with needle treatment performed every 4 weeks for 3 sessions, side effects were mild and temporary.[11].

In the same study, 12 people (11.2%) experienced a pressing pain sensation during the initial treatment.[11]Deciding in advance when to evaluate effects also makes it easier to judge progress.

What should be confirmed during a consultation before treatment?

PRP is a treatment that stimulates skin regeneration using your own blood, but there are limits to its effectiveness. Confirm with your doctor during consultation which concerns you wish to address, whether PRP will be used alone or combined with other treatments, and how many sessions to assess results.

It is also reassuring to discuss in advance whether growth factors will be added and whether you have a tendency toward herpes outbreaks.