Will Biocornuem work to reduce and improve old scars?

BioCorneum can help improve the appearance of scars, but its effectiveness is best in the early stages of healing, so results may vary depending on the age and type of the scar. While BioCorneum is most effective when used during the early stages of scar healing (within the first 2-6 weeks after surgery or injury), it can still be beneficial for older scars, especially those that are raised, red, or thickened. The silicone in BioCorneum helps to soften and flatten scars, and may also improve their color and texture over time.
For older scars (e.g., several months or years old), BioCorneum may not be as effective as it is for new scars, but it can still help minimally. If the scar is flat or depressed, BioCorneum may have limited impact, and other treatments like scar revision, laser therapy or microneedling might be recommended for further improvement.
Krishna Vyas, MD, PhD, MHSHarvard, Hopkins, & Mayo Clinic Trained Aesthetic Plastic SurgeonNew York, New York

Our office likes Biocorneum for surgical scars.  Many of our patients have told us that they have used it on older scars and stretch marks, and have seen improvement.  Best to see a Board Certified Plastic Surgeon.  Together you will come up with a plan.Jeffrey J. Roth, M.D, F.A.C.S.Board Certified Plastic SurgeonLas Vegas Plastic Surgery

My wife used it to test put on her 12 year old Achilles rupture surgery scar without laser treatment and it has softened the appearance and helped with thickness.  The scar will always be there but the fact that it looks better after this long is a good indication that this product works.  Patients like it on their surgery scars because of its easy application and it not being greasy.