I’ve never given much thought to my scalp. Aside from the occasional subconscious scritch-scratch or vigorous shampooing, it’s kind of just … there. A necessary but often-overlooked cranium cover.

But the humble scalp is the focus of an increasingly popular wellness trend: elaborate Chinese and Japanese-inspired treatments at so-called head spas. At these businesses, visitors receive a scalp analysis followed by head and neck massages and repeated deep cleanses. Ogling the inner workings of the scalp, an otherwise forgotten body part — and addressing its needs through blissful hydrotherapy treatments — has driven the hashtag #headspa to draw attention on Tiktok for more than a year now. In one viral video of an L.A.-area head spa, a towel-clad influencer claims it will “change your life.”

I was intrigued. Which is how I came to find myself sitting in a salon chair at Cai Xiang Ge, or “CXG,” in San Gabriel, with a practitioner weaving a tiny digital camera through my hair. I faced a 250-times-magnified view of my scalp on a nearby screen. And what I saw resembled an eerie underwater kelp forest, with dark, swaying stalks growing out of a glistening, spongy field dotted with red patches. It looked like something out of a sci-fi film. Ew.

The process was embarrassingly revealing. Turns out I have an oily scalp with bits of dandruff, CXG owner Ning Chen told me. “And see these red parts? You’re not getting enough sleep. Stress,” she said.

But there’s also a strange delight in examining your dirty scalp up close. As humans, we are nothing if not fascinated by our own bodies, whether that’s picking a scab, prodding a canker sore or popping a pimple. (You know you’ve done it.) The shock factor of scalp treatments is integral to its appeal, according to Sara Hallajian, a Santa Monica-based trichologist and hair loss and scalp specialist at Âme Salon.

“It’s about: ‘Oh, let’s look at your dandruff up close and how dirty your scalp is before and how clean after,’ because it’s not something you see with the naked eye,” Hallajian said.

After my scalp’s close-up, Chen led me into a dimly lighted room with multiple spa beds and traditional Chinese harp music. Birds chirped on the soundtrack as I changed into a robe and reclined on the bed. On one end was a shampoo basin, at the other a foot bath, filled with warm water steeped with Chinese herbs. It was early February, and I generally appreciate rituals around renewal this time of year, cliche as it may seem.

The $135 Royal Treatment scratched that itch. For 90 minutes, CXG’s Alyssa Nevins repeatedly scrubbed my scalp and washed my hair as part of a six-step process. The aromatherapy head massage was a dry one, in which Nevins rubbed tingly feeling tea tree oil into my scalp and then applied an electronic, cephalopod-like device, its multiple arms whirling away tension. That was followed by four shampooings, each with a head and neck massage.

The highlight: Nevins left me lying there for 10 minutes with a circular, waterfall-like device bathing my head and neck in herb-treated water. I wore a heated eye mask, my head was tilted backward and my face was immersed in plumes of steam. Thin jets of water massaged my neck and shoulders. It was heavenly; I nearly fell asleep. I also got a hydrating, collagen-boosting facial, an herbal hair steam and a conditioning hair masque.

The experience ended in the salon, with tea and sweets and an “antihair loss treatment.” Nevins sprayed an herbal serum all over my scalp. She then used a high frequency scalp therapy device to disinfect my pores, a treatment the spa said would fortify hair follicles.

Head spas claim that scalp treatments promote circulation and detoxify, calm and hydrate skin, all of which help prevent dandruff, itchiness, dryness, inflammation and hair loss. I wasn’t sure whether that was true or not, but it sure beats injecting my own plasma into my scalp at $1,500 per session, another recently en vogue beauty treatment aimed at promoting hair growth.

The claims that head spas make are “fundamentally correct,” said Dr. Carolyn Goh, a dermatologist at UCLA Health. “A deep clean and massage can help with circulation and reduce inflammation. My first recommendation to anyone suffering from hair loss is to make your scalp clean. But if you have psoriasis or eczema, it’s not going to help. I’d also caution if you’re sensitive and using essential oils — you can develop an allergy.”

The treatment stimulates acupressure points in the head, particularly one called bai hui, where the so-called meridians meet, according to Dr. Ka-Kit Hui, director of the UCLA Health Center for East-West Medicine. “That may help people with insomnia, anxiety, headaches. It’s costly, but it’s relaxing.”

Scalp treatments have been an integral part of wellness culture for centuries in many parts of Asia, including in China, Japan, Vietnam and Korea.

In China, head spas are so common that “there’s one on every street,” Chen said. They caught on here in L.A. around 2020 and have proliferated in the last year and a half. Now, Chen says, there are about two dozen in the L.A. area, with “about four new ones opening nearby in the past two months alone.” Most of them are in San Gabriel, Temple City, Arcadia and Rosemead — hubs for Asian communities. In addition to CXG, other popular local head spas include Yang Si Guan in San Gabriel, Tou Dao Tang in Temple City and M Head Spa in Rosemead, all of which have opened within the last year and a half.

Chen said her head spa helped kick off the trend in L.A. when CXG opened in mid-2021. CXG plans to expand into Beverly Hills within the next year.

Like many head spas, CXG serves one-timers as well as members who visit weekly or biweekly to relax and maintain scalp health. Chen’s clientele was initially 70% Asian and 30% non-Asian; by summer 2023, it was the opposite, which she said is due to social media promotion.

Videos of Chinese scalp treatments on social media are popular among seekers of ASMR — autonomous sensory meridian response — in which certain sounds promote tingling, goosebumps and other relaxing sensations.

In person, the ASMR experience is even more pronounced. Throughout the treatment, there are the sounds of repeated brush swooshes, shampoo lathering and sloshing water. This was especially evident at Tou Dao Tang when I visited.

Tou Dao Tang originated in China, where it has more than 9,000 locations. But in fall 2022, the company launched its first U.S. outlet in Temple City. It has plans to expand into Glendale later this year. Openings are also in the works for Tustin, Las Vegas, San Francisco and New York.

“It’s the new thing,” manager Hannah Lin says of scalp treatment’s growing popularity. “And people want to try the new thing.”

My scalp analysis, conducted by Tou Dao Tang’s Sherry Zhu, again suggested oily skin, dandruff and sleep deprivation as well as a possible nutrition deficiency, Zhu said. The latter was suggested by a few pale-colored hairs.

The subsequent $108 Classic Scalp treatment was a five-step process. It was especially massage-oriented, with repeated scalp kneading, hair combing and cleansing over 90 minutes, and involved five teas, or “herbal soups,” each infused with different organic herbs. The rounds of tea-washing focused, respectively, on detoxification, rejuvenation and stress relief, nourishment and calming, repairing PH balance and hair loss prevention.

These treatments have become so essential for some patrons of Tou Dao Tang that members often keep their own combs and brushes at the spa, labeled with their names, for practitioners to use when they visit.

“In China, the head spa is so popular,” Lin said. “We wanted to bring it to the U.S. and let people know about our culture.”

The head spas I visited were very different experiences. CXG’s environs were especially luxurious, complete with multicolored lights, aromatherapy and a warm foot bath, while Tou Dao Tang’s home-brewed, organic “tea bath” washings felt more down to earth. They both left me feeling squeaky clean and relaxed — so much so that at Tou Dao Tang, I accidentally floated out the door without paying. (I called back later and took care of the bill.)

After both treatments, my hair was shiny and extra-soft for days.

Needless to say, the itch I had for a feeling of renewal was sufficiently scratched.