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Hair Restoration

Sasaki Advanced Aesthetic Medical Center

Cosmetic Plastic Surgeons located in Pasadena, CA

Hair loss in both men and women creates the perception of aging and a loss of vitality, but hair restoration offers a way of stimulating new hair growth. Triple board-certified plastic surgeon Gordon Sasaki, MD, FACS, and his team at Sasaki Advanced Aesthetic Medical Center in Pasadena, California, offer nonsurgical hair restoration treatments that use the potency of platelet-rich plasma (PRP) from stem cells to encourage natural hair growth. Arrange a consultation by calling Sasaki Advanced Aesthetic Medical Center today or book an appointment online.

Hair Restoration Q & A

What is hair restoration?

You might be interested in hair restoration if your hair is thinning, patchy, or you're becoming bald. A full head of hair is a source of pride for most men and women, and hair loss can be a significant concern for both personal and professional reasons.

Dr. Sasaki has been a clinical investigator and an early adopter for treatments that stimulate the growth of existing hair in women and men. He offers effective, nonsurgical therapies to restore your natural hair growth.

How does hair grow?

A typical healthy adult has about 100,000 hair follicles. These hairs are of three distinct types - vellus hair (fine, short, and light-colored), intermediate hair, and terminal hair (coarser, longer, and distinct pigmentation).

Hair goes through three phases:

Growth phase

90% of the hairs are actively growing at any time and last about three years.

Regression phase

During this phase, which lasts only two or three weeks, the bottom of the terminal hair shortens and separates itself from its blood supply.

Resting phase

This final phase lasts about three to four months, after which the hair starts growing again. When a terminal hair can't regenerate, the result is thinning and balding across your scalp.

Do men and women lose their hair for the same reasons?

Female hair loss usually involves a global thinning of hair or spotty loss of hair, with the frontal hairline intact. Most female hair loss causes aren't as clear cut as the causes of male hair loss, but factors that increase the likelihood of hair loss in women include:

  • Stress

  • Hormonal changes

  • Immune alterations

  • Low levels of iron

Hair loss in men is usually due to a breakdown of the male sex hormone testosterone, which causes the hair follicle to irreversibly wither and die.

Male pattern baldness (androgenetic alopecia) is a hereditary condition that characteristically results in a progressive loss of hair from the front of your head to the back until only the fringes remain on the sides and back of your scalp. Instead of falling out, affected hairs gradually convert from the terminal state (long, thick) to the vellus state (short, thin).

How is hair loss treated?

Dr. Sasaki performs hair restoration with PRP (platelet-rich plasma), a serum of concentrated platelets from your blood that, when reintroduced into your body, stimulates the natural rejuvenation process.

Treatment options include injecting processed fat cells enriched with PRP into your scalp, performing micro-needling of the scalp and then massaging in PRP, and using derived from mesenchymal stem cells.

With these techniques, there's no need for any downtime. While experiences vary, hair growth, more often than not, increases or hair loss slows down. Most patients see noticeable results about three months after treatment. A series of four sessions one month apart and then four months apart for a year is usually recommended for optimal results.

As a consultant and clinical investigator in the use of PRP in aesthetic procedures, Dr. Sasaki has had active involvement in investigating the safety and effectiveness of stimulating hair growth with PRP.


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All cells normally secrete vesicles that contain their molecular messengers (growth factors, cytokines, RNAs) which influence the behavior of adjacent cells by regulating cellular proliferation, blood flow, immunomodulation, and inflammatory processes. In recent years, increasing attention has focused on the roles of extracellular vesicles in promoting normal physiological balance and regenerative repair. Secretomes are derived from stem cells in bone marrow, adipose tissue, placental tissue, and umbilical cord jelly, under strict regulatory guidelines and full compliancy of the United States Food & Drug Administration (FDA).

In 2022, Dr. Sasaki published one of the first Investigational Review Board studies on the application of secretomes, as an alternative method, for hair loss. Moreover, the innovative topical application of these cell-free bioactive molecules are under study to alter the effects of microdermabrasion, microneedling, and laser-resurfacing when they are used to improve the signs of aging skin.

As President-elect of the Aesthetic Stem Cell Society, Dr. Sasaki is a recognized leader in stem cell research of adipose regenerative cells, platelet-rich plasma, and secretomes. Dr. Sasaki has published over 15 manuscripts on these ground-breaking applications based on Investigational Research Board oversight for patient safety and efficacy.


Find out more about hair restoration by calling Sasaki Advanced Aesthetic Medical Center today or booking an appointment online.