Feb. 8, 2011 (New Orleans) -- A gel made from a person's own blood may help to fill in acne scars, preliminary research suggests.
In a study of 15 people with depressed acne scars, the side of the face treated with the gel looked more aesthetically pleasing than the side treated with needling alone.
All participants also underwent a procedure call skin needling that is used to fill in scars.
Also known as collagen induction therapy, it uses small and very sharp needles to create hundreds of small puncture wounds in the skin.
This releases growth factors and generates a wound healing response, stimulating the body's own collagen production. Collagen is the fibrous protein that supports the skin.
Moreover, the tiny holes serve as ports to allow topical medicines -- in this case, the gel -- to get deep down into the skin's dermis where they would otherwise be unable to go, says American Academy of Dermatology (AAD) past president Darrell S. Rigel, MD, clinical professor of dermatology at New York University Medical Center in New York City. He was not involved with the study.
The findings were presented at the annual meeting of the American Academy of Dermatology.
The concentrated gel is made from blood components that release proteins and growth factors necessary for tissue repair and regeneration, says researcher Gabriella Fabbrocini, PhD, of the University of Naples, Italy.
All study participants underwent two sessions of treatments, eight weeks apart, each consisting of skin needling followed by application of the new gel on one side of the face and only skin needling to the other side.
Analysis of before-and-after digital photographs showed that eight weeks after the first session of treatment, all patients had smoother facial skin and a slight reduction in lesion severity.
Eight weeks after the second session, the improvement in acne scars was even more evident. The photographic comparison highlighted that as skin became thicker, the depth of scars was substantially reduced, Fabbrocini says.
"In all cases, application of the gel enhanced the effectiveness of skin needling, producing a greater aesthetic improvement," she says.