Ultra Hair Restoration at Bare: How Laser Technology Rebuilds Hair Density

Hair restoration has a marketing problem. The whole landscape is full of products, devices, supplements, and procedures that promise density and deliver varying degrees of disappointing results. I think most of them are a sham (I’m looking at you supplement companies and amazon red light hats!). Even those that are moderately useful only address a single symptom (thinning hair) and usually neglect the underlying root cause (why the follicles are underperforming).

At Bare, Ultra Hair Restoration uses The Ultra laser in a targeted scalp protocol grounded in the photobiomodulation research that has been slowly building for decades. It's not magic, and it won't regenerate follicles that are permanently gone. But for patients with active follicles that are underperforming due to causes like hormonal shifts, early androgenic miniaturization, post-shedding recovery, or scalp inflammation, it produces real, measurable improvements in density and hair quality that most over-the-counter approaches can't come near.

Here's how it works, who benefits, and what to expect.

The Biology of Hair Follicle Decline

To understand why laser therapy works for hair loss, it helps to understand why follicles fail in the first place.

Hair follicles cycle through three phases: anagen (active growth, lasting 2–7 years), catagen (transition, lasting a few weeks), and telogen (rest/shedding, lasting 2–4 months). In a healthy scalp, approximately 85–90% of follicles are in anagen at any given time, with the rest cycling through the later phases normally.

When something disrupts the follicle environment, this balance shifts. Follicles spend less time in anagen and more time in telogen. The hairs they produce become progressively thinner and shorter as the follicle miniaturizes. If the disruption is severe or prolonged enough, permanent follicle loss occurs.

The main drivers of this disruption:

DHT-driven miniaturization. In genetically susceptible follicles, dihydrotestosterone (DHT) binds to androgen receptors in the follicle and progressively shrinks it over cycles. This is the mechanism of androgenic alopecia. Once a follicle has fully miniaturized, it cannot be recovered. But in the early and intermediate stages, intervention can slow or halt the process. So don’t mess around waiting for your hair to magically change its mind and grow back with this one.

Hormonal environment shifts. Estrogen prolongs the anagen phase. When estrogen declines (perimenopause, postpartum, sudden hormonal change), follicles cycle faster and shed more. Thyroid dysfunction affects cellular metabolism in follicles. Cortisol elevation promotes inflammation in the scalp microenvironment that impairs follicle function. Addressing the root cause of the shift can greatly improve results.

Reduced blood supply and oxygenation. Follicles are metabolically demanding structures. Insufficient blood flow to the scalp impairs their ability to sustain prolonged anagen. This is where I tell all my patients not to discount scalp massages. Getting blood flow back into the area is essential.

Local scalp inflammation. Chronic low-grade inflammation in the scalp, often invisible externally, correlates with accelerated follicle miniaturization and is a contributing factor in multiple types of hair loss. Treating the inflammation itself can quickly turn things around.

All of these are addressable. And the great thing about laser therapy is that it addresses several of them simultaneously.

How The Ultra + KeraFactor Work Together on the Scalp

The mechanism behind this treatment isn't just about light stimulating cellular energy production, though that’s pretty cool too. It's actually more about the delivery. 

This is the same principle I talk about constantly when it comes to skincare: most topical actives, no matter how good the formula, never penetrate deep enough to reach the tissue that actually needs them. The scalp has the same problem, in fact it's a bigger one, because hair follicles sit several millimeters below the surface, well past where a topical serum applied to intact skin can reach on its own.

The Ultra solves this the same way it does for skin. The laser, a 1927nm wavelength platform, the same category used for skin resurfacing, is passed gently over the scalp, where it creates thousands of microscopic channels in the outer skin layer. These channels are painless and involve no needles or incisions, but they do something important: they temporarily turn the scalp into what's essentially a sponge, dramatically increasing how much of what's applied afterward actually gets absorbed.

Immediately following the laser pass, KeraFactor, a serum containing bio-identical growth factors and skin proteins packaged in nanoliposomes, is massaged directly into the treated scalp. Instead of sitting on the surface, where the vast majority of a topical would otherwise stay, the growth factors travel through the microchannels down toward the follicle itself, where they can actually do something. 

Note: KeraFactor is a Bare favorite as the results speak for themselves, though we do have some rising stars in the category of Exosomes.

This combination does three things at the follicle level:

  • Delivers growth factors directly to the follicle, rather than relying on passive absorption through intact skin

  • Triggers a mild, controlled healing response in the scalp, which itself stimulates local growth factor release and increases blood flow. This is the same biological principle behind why microneedling stimulates collagen production in skin

  • Creates a scalp environment that is measurably more supportive of follicle activity immediately following each session

This laser-assisted delivery technique, sometimes referred to industry-wide by the trade name Keralase, is a significantly different mechanism than lower-power photobiomodulation devices like laser combs or LED caps, which rely on light alone to stimulate follicle mitochondria from the outside. Those devices work through a different, generally weaker pathway. The advantage of the Ultra + KeraFactor combination is that it doesn't just stimulate from a distance. It opens a direct channel and delivers the growth factors where they're needed.

The Ultra Hair Restoration Protocol at Bare

At Bare, Ultra Hair Restoration uses The Ultra laser, the same platform used for skin resurfacing, applied to the scalp in a protocol calibrated for follicle stimulation and serum delivery rather than tissue ablation.

The treatment is non-invasive and involves no needles, no incisions, and no downtime. Each session takes about 20–30 minutes and covers the entire treatment area: the laser pass to create the microchannels, followed immediately by the KeraFactor application and Red Light Therapy.

Treatment series are typically structured as 5–6 in-office sessions, spaced roughly one month apart, depending on the degree of loss, the patient's hormonal status, and response over the initial sessions. Between sessions, patients ideally use an at-home KeraFactor topical serum to keep supporting the follicles, scalp massages and home LED devices. 

The in-office laser sessions create the delivery opportunity, and the at-home work sustains growth factor exposure in between. Some patients choose periodic maintenance sessions after completing their initial series.

The scalp may be mildly pink immediately after treatment. There's no recovery period. Most patients return to normal activities the same day, though we discourage sweating too much or washing the hair for approximately 24hrs..

Who Responds Best

The patients who get the most significant results from Ultra Hair Restoration are those with active follicles that are underperforming. Not follicles that have been permanently lost.

Ideal candidates:

  • Women with hormonal hair loss from perimenopause, postpartum, thyroid-related, or birth control-related thinning

  • Patients recovering from telogen effluvium (diffuse shedding triggered by a systemic stressor)

  • Men and women with early to intermediate androgenic alopecia, where follicles are miniaturizing but still present

  • Patients who have stabilized their hair loss through other interventions (hormone optimization, dietary changes) and want to improve density

  • Patients who want to maintain density and slow the progression of hereditary hair loss without committing to surgical options

Who is not a good candidate: Patients with advanced hair loss where follicles are fully miniaturized or absent in the areas of concern. This treatment cannot create new follicles where none exist. It supports and rescues existing ones.

This is why early intervention is so important. The window during which follicles can be supported and recovered is finite.

The Hormone-Laser Integration: Why We Almost Always Pair These

This is the piece I want to be specific about, because it's what separates this approach from a standalone laser or serum protocol.

The treatment delivers growth factors to the follicle. The hormonal environment determines whether the follicle can respond.

A patient with significant estrogen decline, elevated DHT, or suppressed thyroid function has a scalp environment that is actively working against follicle survival. Delivering growth factors more effectively helps, but it can't fully override a hormonal root cause that keeps driving the follicle toward miniaturization.

This is why at Bare, we almost always begin with a comprehensive hormone evaluation before or alongside starting hair restoration treatment. Addressing estrogen, testosterone, thyroid, and cortisol doesn't just improve hair outcomes, it changes the terrain the treatment is working in. The results of the two together are synergistic.

Patients who address hormonal drivers alongside laser treatment typically begin to see results earlier, reach higher final density, and maintain those results more durably than patients who address either intervention in isolation.

What to Expect: Timeline and Results

Hair restoration of any kind requires patience. Follicle cycling operates on a timeline that can't be short cut.

Initial shedding reduction, such as fewer hairs in the shower, on the pillow, in the brush, is often the first thing patients notice, typically within the first 4–8 weeks of treatment. This indicates that follicles are cycling more slowly toward telogen and spending more time in anagen.

Visible density improvement, like a fuller appearance, new baby hairs along the hairline, increased volume, typically becomes noticeable at 3–6 months, as dormant follicles re-enter the growth phase. The full treatment effect, representing the output of multiple improved follicle cycles, continues to build over the following months.

Maintaining results typically involves either periodic maintenance sessions, continued use of the at-home KeraFactor spray, or continued attention to the hormonal and lifestyle factors that support follicle health.

The Starting Point

If you've been watching your hair change and wondering whether it's reversible, the answer depends on how long the follicles have been struggling and whether they're still present. It’s a conversation worth having since the window for helpful intervention is open longer than most people assume.

Book a hair restoration consultation at Bare

Christalyne Causey is the founder of Bare and holds a PhD in endocrinology and nutrition. She practices integrative aesthetics — combining hormone optimization, evidence-based skin care, and advanced aesthetic treatments for results that hold.

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