DHT Blocking Shampoo FAQ’S

Any hair loss/hair thinning regimen requires a solid foundation. That starts with a quality shampoo that contains no sulfates, no parabens, no silicones and no artificial ingredients.  It should also contain ingredients designed to remove DHT from your scalp–the enzyme that causes hair loss and hair thinning in both men and women.  The Hair Restoration Laboratories DHT Blocking Shampoo is that foundation!

If you are not yet experiencing hair loss, or just beginning to, the Hair Restoration Laboratories DHT Blocking Shampoo is an excellent way to help delay the progression of hair loss.

What Are Some Of The Ingredients That Make The DHT Blocking Shampoo So Unique And Effective?

  •  Salvia Miltiorrhiza Root Extract
  • Studies establish that this extract improves blood circulation to the hair follicle.
  • Ligusticum Chuanxiong Root Extract
    Studies establish that this extract has a beneficial effect on hair, reduces hair loss, makes hair silky, glossy and manageable.
  • Astragalus Membranaceus Root Extract
    Known for its adaptogen properties, this extract is rich is polysaccharides, which are nutrients critical to hair follicle health.


  • Camellia Japonica Seed Oil
    In research studies, this extract has demonstrated potent antioxidant properties with the ability to inhibit the production of DHT.
  • Argania Spinosa Kernel Argan oil
    A natural oil that is rich in vitamin E and essential fatty acids. This ingredient provides extensive conditioning and helps combat hair dryness and damage, in addition to diminishing frizz.
  • Biotin (Vitamin H) 
    An essential B-vitamin that promotes hair growth and aids in overall hair health. This ingredient strengthens both the hair follicle and the hair shaft, from which the hair grows.


  • Soy Isoflavones
    Studies establish soy isoflavones promote hair growth by increasing dermal levels of insulin-like growth factor (IGF-1).
  • Tocopherol
    Also known as Vitamin E, this ingredient is an antioxidant and intensive hair conditioning vitamin. This ingredient also softens the hair, provides essential healthy-hair nutrients, and soothes & protects the scalp.
  • Nicotinic Acid/Niacin
    Niacin and hair growth go hand in hand because this B vitamin boosts energy and improves blood flow to the scalp. A healthy scalp is crucial for healthy hair growth.
  • Nigella Sativa Oil
    Studies estbalished that sativa increased hair growth and was effective in treating telogen effluvium.
  • Hibiscus Rosa-sinensis Extract
    Studies of this leaf extract promoted more hair follicles in the anagen (growth) phase.


  • β-sitosterol
    There are several reasons that may explain why phytosterols can be helpful in the treatment of hair loss. One of their main characteristics is their anti-inflammatory properties. Inflammation is often one of the characteristics of the alopecia scalp and several studies have shown that phytosterols have great anti-inflammatory purposes.
  • Citrus Medica Limonum Oil
    A fragrant natural oil that is rich in Vitamin C and is a powerful antioxidant that helps protect the scalp and hair from free radical damage.
  • Polygonum Multiflorum Root Extract
    Studies show that it might be a highly effective anti-androgen through decreasing DHT amounts in your body through obstructing five alpha-reductase digestive enzymes.
  • Rosemarinus Officinalis Leaf Oil
    Results showed that rosemary essential oil was just as effective a minoxidil. During the process, it helped the side effect of itchy scalp more successfully than minoxidil. Another study of rosemary leaf extract (different from the essential oil) showed it stimulated hair growth.


  • Cedrus Atlantica Bark oil
    Subjects in a control group (who were massaged with carrier oil alone) saw a 15% improvement in hair loss, while subjects who were massaged with essential oils showed almost 50% improvement in hair loss.
  • Phyllanthus Emblica
    Studies confirm that this herb is a potent 5α-reductase inhibitor and hair growth promoter.


Can The DHT Blocking Shampoo Be Used With Minoxidil?

Absolutely.  Studies repeatedly reflect that, unfortunately, minoxidil only works for a small percentage of its users.  And, for those who it benefits, it is more likely to slow the progression of hair loss, rather than actually regrow meaningful hair.  If you are using minoxidil, supplementing it with a product that has the ability to remove DHT and other toxins from your scalp can be essential to promote maximum absorption of the minoxidil active ingredients, thus increasing its effectiveness.

Can The DHT Blocking Shampoo Be Effective Without Prescription Drugs?

Yes.  The primary cause of hair loss is genetic.  When hair loss is caused by genetics, the presence of DHT in the hair follicle and scalp is almost always to blame for hair miniaturization.  Hair miniaturization is a phenomenon in which strands of hair become thinner, shorter, more brittle or weak with each successive progression through the hair cycle.  Over time, the miniaturization process leads to the appearance of thinner hair and hair loss.

By helping to remove DHT from the scalp, the Hair Restoration Laboratories DHT Blocking Shampoo can assist in reversing and delaying the miniaturization process.

Can The DHT Blocking Shampoo Be Used By Men And Women?

Yes.  The DHT Blocking Shampoo can be used by men and women on a daily basis.  All adults seeking to prevent or reverse hair loss will benefit from the shampoo, as it is free from sulfates, parabens, silicones and artificial ingredients.  As with any hair loss regimen, it is recommended that you consult with your physician before commencing use of the DHT Blocking Shampoo.

How Should I Use The Shampoo

The shampoo should be used daily and left on your scalp for a period of 3 to 5 minutes to allow for maximum absorption of the DHT-blocking ingredients. Your hair’s appearance will improve after the first use and hair loss benefits will be noticeable within a period of 3 to 5 months.  If you experience any irritation from the shampoo, please discontinue its use.



How can I benefit from the Hair Restoration Laboratories (HRL) 200 Diode Laser Helmet?

Laser Helmet FAQ’S

Multiple independent studies provide that low level laser therapy (LLLT) can reduce hair loss, reverse hair thinning and allow both men and women to regrow healthier, stronger and thicker hair.

How Long Until I See Results?

Users typically experience a minimization of hair loss and hair thinning within 1-3 months after LLLT treatment commences with the HRL 200 Diode Laser Helmet (“Laser Helmet”).

Within 3-6 months after treatment commences, users typically experience a further cessation of hair loss and thinning and the beginning signs of thicker, stronger and healthier hair.

With continued and consistent use, between 6 months and 12 months after treatment commences, users can experience a meaningful cessation of hair loss and hair thinning, along with regrowth of thicker, fuller, healthier and stronger.

Individual results will vary.  

How Long Will I Need To Continue Treatment?

Once you achieve the desired results, we recommend a maintenance treatment schedule of 2 – 3 sessions per week, for 30 minutes per session.

Are There Any Potential Side Effects From Using LLLT?

There are no known side effects from using LLLT, unlike almost every other type of hair loss treatment on the market today.

How Do I Use The HRL Laser Helmet?

Using the HRL Laser Helmet could not be any easier.  Fully charge the battery. Once the the battery is fully charged, follow the detailed instruction manual which explains how to sync the helmet to your smartphone for a custom and, most effective, LLLT session.

Can LLLT Treat Hair Loss In Both Men And Women?

Yes.  Both men and women report exceptional results with the HRL Laser Helmet.

Can I Use The HRL Laser Helmet To Thicken My Hair?

Yes. The HRL Laser Helmet can increase the thickness and density of hair follicles.

How Do I Determine If The HRL Laser Helmet Is Right For Me?

The HRL Laser Helmet is designed to work with most stages of hair loss but the earlier one starts treating, the better the potential outcome.

Can I Use The HRL Laser Helmet Along With Other Hair Loss Treatments?

Yes, LLLT in use with other established hair loss medication(s) (i.e., minoxidil, finasteride (for men only)) will increase the rate and quality of your hair recovery. Please consult with your physician before commencing any hair loss treatment, including LLLT.

When Should I Use LLLT?

The HRL Laser Helmet can assist at the various stages of hair loss, even if you have not yet experienced meaningful hair loss. It can also be used as a preventative measure or simply for maintenance of healthy hair.

What Is The Difference Between the HRL Laser Helmet and other laser caps sold by other manufacturers?

No laser cap has been proven to be stronger or more effective than the HRL Laser Helmet.  Certain other caps use led lights and not laser diodes which have not be proven to provide any benefit to the scalp or hair.  Other manufacturers also use far fewer diodes, resulting in far less scalp coverage, thus rendering their LLLT treatments far less effective.

Also, the HRL Laser Helmet uses the same technology as helmet selling for thousands of dollars more.  We guarantee that our caps are just as effective as models selling for over $3000!

What if I have an existing or potential medical condition?

Before considering any hair growth treatment, including LLLT, properly diagnosing the cause of your hair loss with a physician is essential.

How Many Times A Week Should I Use The HRL Laser Helmet?

We recommend 2 to 3 treatment sessions per week for 30 minutes per session.

When Should I Use The HRL Laser Helmet?

The ideal time for treatment is right after a shower after towel drying your hair. We recommend using a high quality, sulfate free shampoo that assists in removing DHT from your scalp, such as the Hair Restoration Laboratories Hair Restoration DHT Blocking Shampoo

How Much Does The HRL Laser Helmet Weigh?

The HRL Laser Helmet  is extremely light  and very comfortable to wear

What Is The Size Of The HRL Laser Helmet?

The HRL Laser Helmet is a “one size fits all” cap designed to fit almost every scalp of men and women.  So regardless of your head size, you can order the HRL Laser Helmet with confidence that it will fit comfortably while you complete treatment.