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Gene SNP™


Genetics and Your Health

As part of your primary healthcare, Dr. Mayhew asks about any family history of certain medical conditions because your genetics places you at greater risk for developing certain chronic illnesses. But many of our patients do not know their extensive family history or may not mention information that helps Dr. Mayhew identify potential health problems.

What Is Gene SNP™?

Gene SNP™ is an advanced DNA analysis tool that Dr. Mayhew recommends to her patients. The information provided by the test gives her the information she needs, often much more information than her patients are able to provide.

Why Should I Choose Dr. Mayhew and For Women By Women for Gene SNP™?

There are variations on different types of Gene SNP™ programs for differnet medical purposes. For example, one program may be used for breast cancer. Dr. Mayhew is able to perform your personalized Gene SNP in the office. It is easy and simple to do, and allows Dr. Mayhew to indvidiualize your healthcare and wellness. 

What Are the Benefits of Gene SNP™ at For Women By Women?

Gene SNP™ gives you and Dr. Mayhew the advantage needed to effectively identify and treat any medical conditions that stem from your family history. Based on the results, Dr. Mayhew recommends supplements and a healthcare plan that help you stay as healthy as possible.

Is Gene SNP™ Right for Me?

We recommend Gene SNP™ to most of our patients. To learn more about the Gene SNP™ profile tool at For Women By Women, call our office today to schedule your consultation appointment.

Rosanne Mayhew, MD

Aesthetic Specialist & Gynecologist located in San Francisco Bay Area, Los Gatos, CA

For Women By Women is a medical practice in Los Gatos, California under the direction of Dr. Rosanne Mayhew that serves women in the San Francisco and San Jose areas. Dr. Mayhew offers a wide array of gynecological services, vaginal rejuvenation, skin rejuvenation, body contouring, and women’s preventive care. For Women By Women offers both surgical procedures, the latest in laser liposuction, and cosmetic procedures. The goal at For Women By Women is to help meet the unique health needs of women, which may be overshadowed by insurance company requirements and time constraints. She encourages patients to actively participate in preventive health. Dr. Mayhew is also an expert when it comes to guidance and counseling on specialized nutritional supplements and skincare products. Individual consultations and special orders can be made directly through Dr. Mayhew.

Dr. Rosanne Mayhew graduated from medical school at the University of Illinois and completed her residency in obstetrics and gynecology at the University of Texas Health Science Center in San Antonio. After practicing in Houston, Texas for two years, she moved her practice to Los Gatos, California in 1988. She is board-certified by the American Board of Obstetrics and Gynecology and an active member of the American Medical Association. Dr. Mayhew is a strong believer in patient education and strives to provide the best care possible for each patient. She will help coordinate care and performs all procedures herself.

What we offer




Dr. Mayhew is available for home

visits on Wednesday, Friday,

and Saturday Mornings. Call

today for availability!

Skin Rejuvenation

Now Featuring Tizo Photoceuticals.

Now Featuring Tizo Photoceuticals.




    Dr. Mayhew provides flexible, personalized consultations and exams, without rushing you out the door. Let Dr. Mayhew take the time to provide total wellness in every aspect of your life, from preventative care, GYN care, and aesthetic procedures that help you look and feel your best!




    If you are interested in visits outside the office, please contact For Women By Women. Dr. Mayhew is available for minor cosmetic procedures and product consultations outside of office hours.


Words from our patients

  • Yelp

    "She is responsibly trying to do her part to make her patients more aware and healthy."

  • "She is always researching new treatments and dietary supplements and considers each patient as an individual. I would highly recommend her..."

    Bev S.
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Email Address
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Rosanne Mayhew, MD
555 Knowles Drive
Suite 109
Los Gatos, CA 95032