Over the past several years surgeons have used various techniques to perform follicular unit hair transplantation. One such technique is the Lateral Slit Technique, also known as Coronal or Perpendicular Grafting. This technique’s name is derived from the angle and direction in which the graft incisions are made.

While there are other techniques for performing densely packed and highly refined follicular unit transplantation, the lateral slit technique offers a high degree of control over the angle and direction in which the transplanted hairs will ultimately grow.

The lateral slit technique has been used both intuitively and systematically for years by hair restoration physicians. However, it has recently gained popularity as a systematic and precise way of performing follicular unit hair transplantation.

How our member physicians use the Lateral Slit Technique.

Many of our physician members use the Lateral Slit Technique exclusively or in combination with other techniques for creating graft incisions. The lateral slit technique enables a surgeon to create graft incisions at varying angles (ranging from 10 to 90 degrees to the scalp), including very acute angles that will make the transplanted hair grow out lying flatter to the scalp. The ability to create incisions at very acute angles is particularly useful in areas such as the front temples and sides where the hair normally grows out lying flat on the scalp.

The graft incision determines the direction of the hair growth

The lateral slit technique also helps enable a surgeon to determine the direction of the graft incisions. This then determines the ultimate direction of the transplanted hairs growth. Thus a surgeon can use this technique to control and vary both the direction and angle at which the transplanted hair will grow in order to mimic the subtle changes in hair direction that occur naturally.

Each graft incision is created by analyzing the neighboring hair so the surgeon can reproduce the correct hair pattern. As a result, as each transplanted hair emerges from the scalp it will grow and lay in a similar direction as its neighboring non-transplanted hairs.

Lateral slits can enable denser packing of grafts

Lateral slit incisions also tend to be more parallel to the scalp and thus more superficial and less invasive to the scalp’s underlying vascular structure. This parallel alignment also enables a physician to place more grafts per square centimeter with out the grafts compressing or popping up since the pressure exerted on the grafts does not push them upward from the scalp.

Using blades cut to the size of the grafts

Some of our members use custom blade cutters to create tiny blades to make incisions that match the size and depth of each follicular unit graft being transplanted. This enables a surgeon to safely dense pack more grafts into a given area during a surgical session. Healing time is also more rapid, with minimal scarring.

Typically most clinic’s blades range from 1.5mm to 2mm in size. However, by using the custom blade cutter our physicians can create blades as small as .7mm for a single hair graft and .9mm for a multi hair graft.

In addition, the blades created by the custom cutter are squared off to match the shape of the bulb end of a hair follicle. Non custom cut blades are typically spear pointed which requires them to be inserted deeper thus causing more trauma to the scalps vascular structure.

The ability to control the depth of the incision each blade makes is also critical. Each blade is placed in a blade holder that is set to not allow the blade to go any deeper than required for the graft to being placed in the incision. This minimizes unnecessary trauma to the deep vasculature of the scalp, thus enabling close tight incisions, minimal tissue swelling, and quick healing that leaves no visible scaring, pitting, or cobble stoning of the scalp.

Placing grafts to maximize their aesthetic result and coverage

The plane and direction in which each follicular unit graft is placed on the scalp can also impact the ultimate appearance of density that can be produced with a given number of grafts. This is because hairs within a follicular unit are typically next to each other inline.

Therefore by arranging each multiple hair graft on the scalp in a linear fashion to the line of sight, each follicular unit will provide the maximum appearance of fullness and scalp coverage. This also mimics how hair is normally aligned on the scalp.

Special thanks to Dr. DeYarman, Dr. Sharon Keene, Dr. Jerry Cooley, Dr. Alexander, and Dr. Glenn Charles for contributing their expertise and photos for this section.

Causes and Treatments

Alopecia is the medical name for hair loss to the scalp or body.  While Androgenetic Alopecia (genetic hair loss) is the most common, there are many other forms of alopecia related hair loss worth discussing.  Each medically named alopecia comes with distinct symptoms, a unique cause and exclusive treatments. Below, we've compiled a list of and description for the most common types of alopecia related hair loss along with the available treatment options for each.

While the information on this website can be used as a guide, men and women who believe they are experiencing hair loss should always be properly diagnosed by a qualified hair restoration physician to determine its cause. To learn more about each distinctive alopecia hair loss condition, click the links below.

Traction Alopecia
Alopecia Areata
Diffuse Patterned Alopecia
Diffuse Unpatterned Alopecia (DUPA)

Cicatricial alopecia (Scarring Alopecia)

Alopecia Universalis and Alopecia Totalis

To date, the only two FDA approved hair loss treatments include Propecia (finasteride) and Rogaine (minoxidil). However, a number of alternative oral and topical products are marketed daily as effective hair regrowth solutions.  Though there is no question that marketing often over-reaches in order to sell a product, the real question balding men and women ask is, is there any proof that these products are effective in treating baldness?  What is the chance of regrowing hair?

Topical Hair Loss Products, Treatments and Cover Ups (Concealers)

For centuries men and women have been rubbing hair loss products including solutions, ointments, treatments and concoctions on their thinning hair in the hope of stimulating hair regrowth. In ancient Egypt it was popular to rub the fats of various animals, including lions, hippopotamuses, crocodiles, ibex, serpents and geese, onto the scalp as a hair loss cure.

Hippocrates had a personal interest in finding a treatment for baldness as he suffered from hair loss. He developed a number of different treatments, including a mixture of horseradish, cumin, pigeon droppings, and nettles to the scalp. These concoctions failed miserably and he became prominently bald. These and other treatments failures have continued to disappoint balding men and women.

Today’s Topicals - Snake Oils or Legitimate Hair Loss Products?

Today topical hair loss products such as special shampoos, conditioners, Rogaine, various scalp treatments, and cover up products can offer a potentially helpful adjunct to more effective and proven treatments such as Propecia (finasteride), Avodart (dutasteride), and or surgical hair restoration. However, many of the claims made by these topical treatments are unproven and even false.

What About Oral Hair Loss Treatments – Do They Work?

In addition to a multitude of topical hair loss treatments available, there’s an abundance of oral supplements that are conjectured to treat baldness.  Most oral solutions include ingredients that attempt to stop hair loss by inhibiting the production of DHT, the hormone responsible for androgenic alopecia (male pattern baldness).  However, much like topical treatments, very little proof exists for the majority of these claims.

Many products such as Provillus, Procerin, and Extreme Hair Therapy include both an oral and topical solution that attempt to stop hair loss at its source while working to stimulate hair follicles.  But how effective are these topical, oral and all-in-one solutions?

To learn more about various Topical Hair Loss Products, click below

DHT Blockers– These topical such as Revivogen, Crinagen, Progesterone Creams, and Xandrox claim to minimize the amount of dihydrotestosterone (DHT) present in the balding scalp. They are applied directly to the scalp.

Growth Stimulators- These topical solutions claim to work by stimulating hair growth. They include Rogaine, Tricomin, Folligen, Proxiphen (along with Prox-N and Nano Shampoo) and Retin-A.

Azelaic Acid– An active ingredient found in popular topical hair loss treatments such as Xandrox and Provillus conjectured to inhibit the production of DHT.

Superoxide Dismutase– These topicals such as Tricomin, Proxiphen, Proxiphen-N and Folligen, claim to stop hair loss by reducing Super Oxide and also stimulating hair growth and reducing tissue inflammation.

Anti-Inflammatories- These anti-inflammatory treatments claim to reduce itching, flaking, redness, and inflammation that may increase hair loss. These topical treatment options include Tricomin, Folligen, Proxiphen and Proxiphen-N, Betadine and T-Gel and Nizoral Shampoo.

Cover Ups / Concealers- Topically applied scalp/hair cover ups like Toppik, Prothik, and Couvré can do a surprisingly good job of masking and minimizing a person’s appearance of being bald. These topical concealers and “cover ups” act by reducing the contrast between a hair loss sufferer’s thinning hair and balding scalp, while increasing the volume and fullness of the thinning hair.

Rogaine (Minoxidil)) – Applied twice daily to the balding areas, this treatment has only been shown to work in the crown (back of the head). It is the only topical treatment for hair loss that is FDA approved.

Propecia (Finasteride)– An FDA approved oral hair loss solution proven to inhibit the production of DHT, the hormone responsible for genetic male pattern baldness (MPB).

Provillus– A popular oral and topical solution containing FDA approved hair regrowth solution minoxidil and a number of all-natural ingredients that supposedly inhibit the production of DHT

Saw Palmetto– A popular herbal treatment contained in many marketed hair loss products including but not limited to Provillus, Procerin, and Extreme Hair Therapy (EXT)

Extreme Hair Therapy (EXT) – A nonsurgical 5 step hair loss treatment process provided by Hair Club

Xandrox– Topical hair loss solution containing azelaic acid and FDA approved hair regrowth solution minoxidil

Revivogen– Topical hair loss solution containing a number of all natural ingredients said to inhibit the production of DHT

Crinagen – A topical spray containing ingredients said to inhibit the production of DHT

Progesterone– A synthetic form of the female hormone progesterone that has been used to treat female hair loss

TRX2- TRX2 is marketed to hair loss suffering men and women and claims to help promote and sustain healthy hair growth through potassium channels.

To learn more about these and other treatments, see what real patients are saying about them on our hair loss forum.

What Is DUPA?

Diffuse Unpatterned Alopecia (DUPA) is a form of genetic hair loss characterized by diffuse thinning over the entire scalp. Unlike Diffuse Patterned Alopecia (DPA), DUPA lacks the stable permanent zone associated with other forms of alopecia.

Dr. O'tar Norwood defined DUPA in his 1975 seminole publication "Male Pattern Baldness: Classification and Incidence" as:

Diffuse, Unpatterened Alopecia (DUPA). In this type, there is a general decrease in the density of hair without any definite pattern, although it is usually more marked over the top and front. This type is common in women.

Identifying DUPA

Diffuse Unpatterned Alopecia patients have a similar pattern of hair loss to DPA patients but the balding tends to occur more rapidly. DUPA patients are also more likely to achieve the “horseshoe” pattern commonly associated with Norwood class VII baldness. However, unlike other forms of alopecia hair loss, the DUPA “horseshoe” takes on a thin and transparent appearance.

It is important that patients suffering from diffuse hair loss are properly diagnosed. While DPA patients are often good candidates for surgical hair restoration, DUPA patients typically make poor hair transplant patients due to the lack of a stable zone in which to harvest donor grafts.

Treatment for Diffuse Unpatterned Alopecia

Not a lot is known about the cause and treatment of DUPA. However, about half of males who suffer from this form of balding benefit from Propecia (finasteride). Unfortunately, DUPA is about 10 times more common in females for whom Propecia is not a treatment option.

Conclusion

Anyone suffering from diffuse hair loss should consult with a dermatologist or hair restoration physician for a proper diagnosis. This is especially true for balding men and women considering hair transplant surgery.

As the field of medical hair restoration continues advancing and evolving, hair loss sufferers look toward new, cutting edge clinics and corporations for faster, more effective, and less invasive hair loss treatments. In various but not all cases, the breakthroughs achieved through oral medications and topical solutions (seen in proven hair loss treatments like Rogaine (minoxidil) and Propecia (finasteride) are fantastic.  Thus, hair restoration entities continue striving to create the next advancement and bring the world closer to a “hair loss cure.” However, for each hair restoration treatment that’s proven safe, effective, and efficient, it seems as if a dozen others are rejected for being unproven, inefficient, or unsafe.

For this reason, it’s always advantageous to thoroughly research the newest hair loss solutions and determine whether they are safe and effective, or if they fail to live up to the high expectations set by the current gold standard treatments such as proven solutions Propecia and Rogaine.   Below, we evaluate whether Spectral.DNC, a topical solution created by Divine Skin Laboratories (DS Laboratories) can help stop hair loss and regrow hair.

Spectral.DNC is a topical treatment formulated by DS Laboratories which claims its “the world’s most effective topical hair loss treatment.” But can Spectral.DNC live up to these lofty claims and offer a more effective solution, or will it suffer the fate of many therapies before it and fail to gain the approval of the hair restoration patient community?

According to DS Laboratories, Spectral.DNC is applied (as an atomized mist or liquid) to the balding scalp twice daily, once in the morning and once at night. Along with a series of vitamins and herbal supplements (herbal extracts, copper peptides, and a vitamin complex), the active ingredients in Spectral. DNC are 5% minoxidil, Aminexil (SP94), and Retinol. Since minoxidil is also the proven, active ingredient in topical Rogaine, Divine Skin utilizes a frequently asked questions feature on its website to explain how Spectral.DNC is different and more effective than minoxidil. According to Divine Skin, it’s the two other active ingredients – Aminexil and Retinol that make Spectral.DNC more effective than Rogaine.

Aminexil (or Aminexil SP94) is a compound currently featured as an active ingredient in a line of healthy hair shampoos by L’Oreal. Aminexil is allegedly helpful in the treatment of perifollicular fibrosis – a pre-mature aging of hair shafts caused by inflammation and an overproduction of collagen proteins. It’s worth noting that while some reputable sources have researched its connection to perifollicular fibrosis, it hasn’t been conclusively linked to hair loss (especially androgenic alopecia hair loss), nor is Aminexil proven to treat perifollicular fibrosis. Furthermore, Aminexil is not recognized or approved by the United States Food and Drug Administration (FDA) as a treatment for any type of hair loss.

DS Laboratories indirectly counters these statements by sharing the results of a “worldwide” study which demonstrated an 8% increase in hair growth and a 6% increase in hair shaft diameter in hair loss sufferers using Aminexil (compared to a placebo group). This study however, is not without its limitations.  This study was conducted in 1994, only contained 130 participants, lasted for 42 days, and doesn’t appear to be published in any sort of peer reviewed publication. Because of this, it’s difficult to evaluate whether or not the addition of Aminexil as an improvement over simple 5% minoxidil. But what about the Retinol?

Retinol (and its derivatives) is a form of Vitamin A, often used in medical dermatology for maintaining healthy skin and treating specific types of acne. Allegedly, certain forms of Retinol act as hair restoration drugs (after periods of long term usage) by preventing hair loss hormones from binding to target receptors and killing healthy hair follicles. While evidence of these claims was difficult to find, many Retinol users claim that the drug is harsh on skin and utilizing it in the scalp would cause irritation and require small, likely ineffective dosages. Much like Aminexil, there’s no solid evidence to suggest that Retinol makes Spectral.DNC a more effective hair loss solution than Rogaine or other minoxidil related products. Interestingly enough, while copper peptidesare listed as in inactive ingredient, research supports that copper peptides may play a role in transforming thin vellus hairs into thicker terminal hairs, increasing follicular size, and regenerating healthy scalp skin.  However, because copper peptides aren’t listed as an official “active ingredient” by DS Laboratories nor do we know its concentration, it’s difficult to gauge its efficacy within Spectral.DNC.

The only proven and FDA approved ingredient in Spectral.DNC is 5% minoxidil. While minoxidil is safe and efficient, it’s unclear what the additional ingredients in Spectral.DNC may actually accomplish. Furthermore, the cost of Spectral.DNC runs between $35.00 and $45.00 for a month supply, compared to around $ 25.00 for a three month supply of generic 5% minoxidil.  According to DS Laboratories, the only known side effects revolve around minoxidil (which are no different than those associated with Rogaine).  Although minoxidil is relatively safe and effective, it’s been used as a hair loss treatment for decades.

Those hair loss sufferers considering using Spectral.DNC as a treatment for thinning hair can feel confident knowing that they will, at the very least, obtain similar results to using minoxidil 5%.  Until the other active ingredients are peer reviewed, whether or not Spectral.DNC is more effective than Rogaine 5% is mostly conjecture.

Stemcelex is the newest product in a long line of hair restoration therapies claiming to “cure” hair loss via stem cell therapy. Given the recent onslaught of news regarding stem cell based hair loss treatments, injectable baldness cures, and research breakthroughs, it’s not surprising to see new therapies claiming to aggressively fight hair loss through these same mechanisms. However, is Stemcelex truly a stem cell based, regenerative hair loss cure, or is it another therapy simply riding the recent wave of interest in these types of non-invasive, revolutionary treatments?

At first glance, Stemcelex seems quite impressive. The product website is filled with scientific explanations, graphs, charts, and diagrams explaining the science behind stem cell based hair restoration. Stemcelex even states its affiliation with Dr. George Cotsarelis, a researcher at the University of Pennsylvania Medical Center who, along with a talented research team, recently discovered that the bald scalp does not suffer from a lack of stem cells, but rather a dysfunction in the pathway to properly activating stem cells to produce hair. The finding was significant and Dr. Cotsarelis’ involvement and the seemingly detailed science look promising, but what about Stemcelex itself? Does it utilize these scientific breakthroughs and offer an effective treatment for hair loss?

Unfortunately, despite the impressive name recognition and detailed explanations, Stemcelex doesn’t appear to live up to its lofty hair restoration claims. Despite claiming to “activate” the dormant stem cells described by Dr. Cotsarelis, Stemcelex does not offer any sort of feasible molecular/stem cell based therapy. The website cleverly explains the science behind stem cell inactivation and the promise of reversing the dysfunctional pathway, but instead of reinforcing Dr. Cotsarelis’ view that cures for reversing the inactivation pathway are not yet understood, Stemcelex claims to actually fix the stem cell inactivation through a series of unproven homeopathic and herbal treatments for hair loss.

So, what is actually inStemcelex? The treatment involves a three day cycle of different lotions and topical treatments for baldness applied twice a day.

Day1: On the first day of the hair restoration cycle, a topical lotion made from Jaborandi Pilocarpus is applied twice after washing and thoroughly drying one’s hair. According to Stemcelex, Jaborandi Pilocarpus is a parasympathetic activator (it excites the nerves that cause the body to “rest and digest” during periods of relaxation) that rids the scalp of excess oils and dandruff that impede healthy follicular hair growth. Furthermore, Stemcelex claims that Pilocarpus naturally darkens and thickens existing, native hairs. According to the experts, Pilocarpus has no reproducible pharmacological applications and any evidence that it actually thickens and darkens hair is anecdotal.

Day 2: The second day of the cycle involves Veratrum Lobelianum, a family of herbs commonly used in Chinese medicine.  Stemcelex claims these herbs can penetrate the scalp and activate the necessary molecular signaling to “regenerate” the hair follicle stem cells. Furthermore, Veratrum allegedly down-regulates or prevents the production of Dihydrotestosterone (DHT), the hormone directly responsible for male pattern baldness. According to the research, members of the Veratrum family have been used in everything from a Native American poison to a drug researched in human blood pressure.  Currently, they are used in cancer treatments. Although the science behind cancer therapies indicates that the drug could have some molecular benefit in signaling cell activation and inactivation, there has been no research or evidence suggesting that Veratrum is useful in fighting, reversing, or preventing the effects of male or female hair loss.

Day 3: During the third day of the Stemcelex cycle, a kelp based topical extract is applied twice daily to provide nutrients to the “new hair growth” and also ensure that the scalp remains clean and healthy. This step of the treatment doesn’t claim to be more than a simple dose of nutrients useful in good scalp hygiene.

After reviewing the active ingredients behind Stemcelex, there is no evidence to suggest that Stemcelex is an effective hair loss treatment at this point in time. The idea of activating the dormant stem cells is important to finding a molecular cure to hair loss, but despite understanding this importance, Stemcelex doesn’t offer any concrete stem cell reactivation agents. It’s possible that Veratrum may prove useful in cell signaling and reactivating dormant cells, but the current research and evidence simply don’t support its use at this time.  Furthermore, Stemcelex charges a hefty $99.85 for a month supply of the treatment which may keep even the most curious and enthusiastic hair loss suffering men and women away.

Altogether, the idea of reversing dormant hair follicle stem cells is important, but therapies for effectively stopping and rewiring this pathway do not seem to exist at this point in time. Unfortunately, this seems to nullify the claims made by Stemcelex and prevent it from becoming a stem cell hair loss cure.