PRP skin regeneration therapy: How much can skin change? What research revealed about effectiveness and precautions

PRP skin regeneration therapy (a treatment that extracts platelet-rich plasma from your own blood and injects it into the skin) showed modest improvements in skin appearance, texture, and fine lines in compiled research reports[1]. However, the magnitude of improvement is modest, and it remains unclear how long the results last[1]. Most research studies are small and vary in quality[2].

How much does skin change with PRP?

It is realistic to expect changes on the order of "modest improvement." A compiled report of 24 studies (480 people) found that PRP injections alone produced modest improvements in skin appearance, texture, and wrinkles, at least temporarily[1].

It has been reported that the treatment may also be effective for fine lines around the eyes and uneven skin tone[1]. In another compiled report of 36 studies, improvement was reported in all but 7 cases (19.44%)[2].

Where do differences appear in skin luster, pores, and wrinkles?

The clearest difference was in skin luster. In a Japanese study of 9 people where PRP was injected on one side of the face and saline on the other for comparison, at one month post-treatment the area with luster had increased by 16.3% more on the PRP side[3].

Pores tended to be reduced on the PRP side, but the difference was not statistically significant[3]. There was no difference in wrinkle area or spot color[3].

How much can research results be trusted?

Although positive results are numerous, the methods of verification still have weaknesses. The median number of participants in the 36 studies was only 27.5 people, and many were observational studies without a comparison group[2].

It has also been noted that PRP preparation methods and volumes are not standardized, making it difficult to compile and compare results[2]. The authors concluded that evidence to confirm efficacy remains very limited[2].

According to the Japanese Society for Aesthetic Surgery guidelines, PRP monotherapy for facial wrinkles and sagging skin has many reports of efficacy; however, care must be taken to avoid accidental injection into blood vessels, and the recommendation level is 2 (weak recommendation)[4].

What is different about PRP with growth factors added?

Whether or not something is added to PRP greatly changes the precautions. The method of adding growth factors (bFGF) to PRP has many complications such as nodules and swelling, and is not recommended casually[4].

Before treatment, be sure to ask whether PRP alone will be used or if something will be added.

What are the side effects and what physical conditions should you be aware of before treatment?

The most common are flushing, heat sensation, redness, pain, and bruising. All are mild and temporary, resolve naturally, and no serious side effects have been reported[1].

Caution is necessary if you have an infection at the injection site, a condition where blood does not clot easily, are taking blood-thinning medications, or have an autoimmune disease[5].

What should you confirm before treatment?

During your consultation, ask about the following points:

Goal: luster and texture, or deep wrinkles and sagging[1][3]

Contents: PRP alone, or with growth factors added[4]

Outlook: how many treatments, and how long results may last[1]

Physical condition: bleeding disorders or medications you are taking[5]

Whether PRP will work for your particular skin cannot be decided from this article alone. During your consultation, have your concerns evaluated to determine whether it is luster, wrinkles, or sagging that troubles you, and confirm the differences between PRP content and other treatments.