This post was most recently updated on June 15th, 2023
Whatever your hairstyle is: curly shag, octopus haircut, or soft bob, if you are still experiencing hair loss, you have to switch your regular shampoo to hair loss treatment shampoo. This shampoo usually has nutrients that can stop shedding and accelerate hair growth. But, is it that easy? To find out, we bring you Zenagen reviews to see if their hair loss treatment shampoo is the best solution for your thinning and falling hair problems.
We will discuss in detail what are the features, benefits, and differences of the shampoos launched by Zenagen. To support that, we pack it with the science behind the ingredients and real buyer experiences. Eventually, you can decide for yourself whether or not it is the best shampoo to stop your hair loss condition.

PROS | CONS |
Reduces hair loss within 2-6 weeks of regular use | If you stop using it, your hair will return to its original state |
Contains plant-based ingredients | It is a little pricey |
Suitable for all hair types, including colored and Afro-American hairs | Doesn’t have a money-back guarantee program if you notice no difference |
A Sneak Peek of Zenagen
Jared Reynolds is the man behind the success of the Zenagen hair loss treatment shampoo. During his medical studies, he began to notice his hair thinning and falling out. Armed with the knowledge he gained from his studies, he started looking for solutions to overcome his hair loss.
He found that a combination of the best nutraceuticals and an effective delivery system is the key to a natural and effective solution for hair loss.
In 2008, Zenagen was founded with the mission of making full use of plant-based ingredients to create safe and effective hair care products. Zenagan has also won the Top Award For Best Emerging Brand of Products at the 2012 HBA Global Expo for Health and Beauty.
This cruelty-free, vegan formula comes from years of proven-research to tackle the root causes of hair loss for all hair types and textures. Zenagen hair care products are divided into two lines, Revolve and Evolve. To learn more about them, let’s move on to the next section.
Zenagen Revolve and Evolve Lineup
Revolve and Evolve are the two main systems of Zenagen products, each designed to address your specific hair problems.
In short;
- Revolve is aimed more at treating hair loss and
- Evolve is designed to reverse the effects of hair damage.
Zenagen also offers a range of styling products, which includes the Strengthening Leave-in Conditioner, Thickening Volume Foam, Light-as-air Leave-in Cream, Thickening Texturizing Powder, and Flexture Paste, as well as hair accessories.
This review will prioritize Revolve and Evolve which consist of shampoo and conditioner. Let’s start with the Revolve line.
Revolve Hair Loss Treatment
Zenagen Revolve Hair Loss Treatment is suitable for those who experience hair loss due to:
- Alopecia areata, caused by an autoimmune reaction in which the body attacks the hair follicles.
- Androgenetic alopecia, caused by a combination of genetics and hormones. Otherwise known as male/ female pattern baldness.
- Telogen effluvium, e.g. Hair loss caused by Covid-19, stress, hormone changes, postpartum, post-chemotherapy, and certain medications.

The main ingredients of the Revolve system are Saw Palmetto, Red Clover, Brahmi, and Aloe Leaf Juice. This formula will help reduce hair shedding in 2-6 weeks, and in 3+ months your hair will appear fuller and thicker. But it’s important to remember that everyone’s results will vary, depending on the type of hair and the type of hair loss you have.

Use Revolve every other day or 2-3 times a week, and let it sit for 5 minutes before rinsing so the formula penetrates your scalp. Follow with Revolve Hair Loss Conditioner (Unisex) by focusing on the scalp and ends to condition and soothe scalp inflammation and irritation. It also enhances manageability and allows hair to shine without weighing it down.

Evolve Repair Treatment
Evolve is a two-step repair system (shampoo and conditioner) made from natural ingredients to promote hair growth 40% faster. This system can be used by all hair types, including those who might NOT be experience hair loss. Just like its counterpart, Evolve is also free of parabens, SLS, and gluten.
Who is it for?
- Those who live in densely populated areas experiencing hair damage due to air pollution.
- Anyone with dry, brittle, or damaged hair from bleaching, hair dye, or heat tools.
- People who live in regions with humid climates that can cause unknown heat damage.
Use this system 3-4 times a week by leaving the shampoo on your scalp for 5 minutes. Then follow with Evolve Repair Treatment Conditioner to restore strength and resilience of your damaged hair. With regular use, you will see longer and healthier hair after 4-8+ weeks.


Let’s take a closer look at their active ingredients in the next section.
What are the Active Nutraceutical Ingredients in Zenagen Shampoo?
Zenagen shampoo harnesses the power of high-quality plant-based ingredients to treat hair loss and damage problems. The picture below shows the full list of Zenagen shampoo ingredients.

Let’s take a look at their key ingredients and how they promote hair health individually.
Saw Palmetto
- Prevents the conversion of testosterone into DHT
- Reduces inflammation on the scalp
- Strengthens the hair follicles for hair to grow thicker
Red Clover
- Targets inflammation on the scalp to make hair grow thicker
- Reduces dandruff and scalp irritation
- Softens and moisturizes your hair
Brahmi
- Strengthens the hair roots and reduces hair loss
- Prevents split ends and dryness
- Rejuvenates a dry, itchy, or inflamed scalp
Aloe Leaf Juice
- Controls excessive oil (sebum)
- Retains hair moisture and nourishes the scalp
- Protects your hair from UV damage
Camellia Sinensis Leaf (Tea Plant)
- Stimulates the scalp and allows the ingredients to reach the hair follicle.
- Improves hair growth
- Retains hair moisture and conditions the scalp
Ginger Root
- Stimulates the scalp for faster delivery of ingredients to the follicle
- Improves hair shaft strength and prevents brittleness
- Slows the rate of hair loss
Alpine Willowherb
- Helps the hair follicles stay longer in the growth stage
- Stimulates hair follicles for maximum growth
- Prevents hair shedding and breakage
Grape Seed Extract
- Soothes and protects the inflamed scalp
- Promotes faster hair growth
- Reduces hair loss
Lavender
- Helps heal scalp inflammation
- Prevents itchy scalp, dandruff, or infections
- Improves overall scalp health for new hair to grow
These are the key active ingredients in Zenagen shampoo that helps to stop hair loss and repair hair damage. Now let’s see what things to consider before taking Zenagen shampoo.
Things to Consider Before Buying Zenagen Shampoo
After you learn about Zenagen’s features and key ingredients, you need to know some things to consider before investing in their shampoo. Taking the right product will maximize the benefits for your hair since their shampoos have different formulas and purposes.
Should I Take Revolve or Evolve?
Revolve and Evolve are made with different formulas because their benefits are also different.
On Revolve
The Revolve formula uses nutraceuticals and anti-aging ingredients that target DHT, the hormone that causes 95% of hair loss. Thus, Revolve is more suitable for those who experience hair loss and thinning hair. To reduce and stop hair loss, take Revolve for maximum results.
On Evolve
Meanwhile, Evolve is a hair repair and growth system. The formula is crafted to repair and even prevent damage to your hair, so it’s suitable for you with damaged or chemically-treated hair. It also helps to accelerate your hair growth 40% faster, making it longer and thicker.
If you are not experiencing hair loss and want to speed up hair growth, take Evolve instead of Revolve although it can also promote hair growth.
I am a Woman But Can I Take Revolve Shampoo For Men?
Yes, there is nothing wrong with using the opposite gender’s shampoo.
However, there is a reason why this shampoo is designed based on gender. Women’s Revolve is created with a higher concentration of anti-inflammatory ingredients than Men’s. One of the enhanced ingredients is Red Clover, which is widely used to reduce hair loss due to menopause. Women with menopause not only lack estrogen, but DHT production also increases.
Red Clover works by targeting scalp inflammation and blocking DHT, this is why the concentration is increased in Women’s Revolve. When the formula was tested on men, it did not work as effectively with lower concentrations of ingredients. Thus, it is better to take shampoo from the right line to maximize work and get the benefits that suit your hair needs.
Benefits of Zenagen Shampoo
We discuss how Zenagen shampoo works to improve your hair loss by blocking DHT as well as the real-life experiences of users. By using its nutraceutical ingredients, Zenagen is likely safe for everyone, including pregnant or breastfeeding women. Zenagen shampoo works from the hair follicles down to the ends of the hair, so it’s not only great for reducing hair loss, but also for your overall hair health. Let’s take a look at the science behind Zenagen shampoo.
Zenagen Revolve System Blocks DHT
The reason why Revolve works so well against hair loss is that the nutraceutical ingredients in it penetrate deep down into your hair follicles, not just in the top layer of the epidermis. Revolve directly targets DHT or dihydrotestosterone, the natural hormone in your hair follicles that are the main cause of 95% hair loss in many people.
After being converted from testosterone by the help of 5-alpha reductase (5-AR), DHT then travels through the bloodstream and connects to receptors in the hair follicles on your scalp. This is why DHT can cause hair loss and stunted hair growth because it shrinks hair follicles so they are unable to sustain healthy hair. Since there are no agents to help remove it, over time, DHT will multiply and accumulate, causing hair loss in both men and women.


How Zenagen Evolve Works in the Hair Growth Cycle
The main function of Evolve is to repair hair damage and optimize the scalp environment to promote longer and stronger hair growth. The use of nutraceutical ingredients stimulates the efficiency of stem cells to grow your hair faster. Evolve also works in your hair growth cycle by extending the anagen (growth) stage and accelerating the telogen (shedding) stage i.e. Stage 1 (growth) and Stage 3 (shedding) below.
Thus, your hair follicles will stay in the growth stage longer and stay that way for a long period.

Besides the plant-based ingredients, Evolve also contains important amino acids: PCAs, Alanine, and Histidine, which can repair, moisturize and protect the hair cuticle. As your hair’s texture is improved by PCAs, Alanine works to lock in moisture in your hair so it gets the natural shine it needs. Histidine acts as a hair protector from external factors, such as pollution, helping to keep hair cuticles tightly closed.

Again, this process takes time and it may be different for everyone. So you should be patient to see visible results after regular use of the Revolve or Evolve system. Now let’s take a look at the real-life buyer experiences below.
How Zenagen Works for People from Different Backgrounds
Here we cover the user experiences with different hair types, hair colors, hair lengths, and more.










Now we know that Zenagen works for many people with different hair problems, ages, and more. The time it takes to see the results also varies from person to person.
Possible Side Effects of Zenagen Shampoo
Even though it is made from plant-based nutraceuticals, that does not mean that Zenagen is free from side effects. Some people may experience allergic reactions or other side effects. Following are the possible side effects of Zenagen Shampoo.
- Zenagen Shampoo contains fragrance. It may be liked by some people but those with sensitive skin might complain about the smell.
- The product contains ammonium lauryl sulfate, which has the potential to over-dry, especially if you have very sensitive and dry skin.
- If you’re allergic to phenoxyethanol, you may experience skin rash or in severe cases, anaphylaxis might occur. People with eczema should consult with a doctor before taking Zenagen shampoo.
- The shampoo contains lots of derived-plant ingredients that may cause allergic reactions for some people with certain allergies to those plant-based ingredients.
- Redness, itchy, swelling, or flaky skin/ scalp may occur due to the methylchloroisothiazolinone ingredient in the product.
By observing the ingredients and learning about your skin/ hair allergies, you will get to know that you’re not at a risk. Now, let’s check the alternatives to Zenagen Shampoo.
Alternatives to Zenagen Shampoo
Today, many hair care brands offer shampoo for your specific hair problems and needs. You can find them easily that vary in terms of price, customization, quality, and more. In this section, we give you three shampoos provided by Nioxin, Boldify, and Ultrax Labs.
Nioxin Cleanser Shampoo

If you have thinning and non-colored hair, Nioxin System 2 Cleanser Shampoo can be a great option for you to gain fuller and thicker hair. This shampoo works by removing build-up on your scalp, making it the best environment for hair to grow healthier. It also helps add hair volume and fight against damage. Nioxin works by cleaning your scalp, unlike Zenagen which acts as a DHT blocker.
Boldify Hair Thickening Shampoo

Packed with biotin, Boldify is great for thinning hair due to genetics, coloring, or over-styling to promote fuller and thicker hair. Boldify works by cleaning DHT in your scalp and absorbing excessive oil. This color-safe shampoo nourishes also your hair from roots to tips, giving the hair strands great hydration to prevent breakage with its aloe vera and rosemary extract.
Ultrax Labs Hair Surge Shampoo

This shampoo is specially formulated with Caffeine, a scientifically-proven ingredient to suppress DHT in your scalp and stimulate hair roots to boost hair growth. This shampoo is great for people with androgenetic alopecia. It is not sulfate-free, so it may not be very good for dry or colored hair. Its Advanced CaffinoPlex blend is also great for reducing breakage and stimulating hair growth. Now let’s check the next section for a comparison of all shampoos.
Comparison of the Alternatives
Zenagen | Nioxin | Boldify | Ultrax Labs |
Current Price: $59.99 for 6 fl oz | Current Price: $44.97 for 33.8 fl oz | Current Price: $19.94 for 8 fl oz | Current Price: $79.95 for 6.4 fl oz |
4.5 out of 5 stars from 1,968+ ratings | 4.7 out of 5 stars from 8,626+ ratings | 4.4 out of 5 stars from 4,289+ ratings | 4.0 out of 5 stars from 11,663+ ratings |
Utilize nutraceutical ingredients to stop and prevent hair loss and boost hair growth | Designed for natural or non-chemically treated hair to promote hair growth | A color-safe shampoo that is great to clean DHT and absorb sebum | Formulated with Advanced CaffinoPlex blend to block DHT production and boost hair growth |
Observation include:
- Boldify offers the most affordable price among them while Ultrax Labs gives you the most expensive option.
- Nioxin is more expensive than Boldify, but you’ll get 33.8 fl oz per bottle, which can last longer.
- Nioxin also has the highest rate out of all, but Ultrax Lab has the largest number of reviews.
With their unique features, these shampoos are great to stimulate hair growth and overall hair health.
To conclude, Revolve is great to reduce hair loss and achieve thicker hair, while Evolve works to repair damaged hair and then speed up hair growth. Revolve works better for you with hair loss due to androgenic alopecia, Covid, postpartum, etc. If you’re hair damaged due to external factors, such as pollution or over-styling, Evolve is your right pick. Zenagen utilizes plant-based ingredients to do their job and bring you the best benefits for your hair health.
Let us know in the comments which system you would choose to cater to your hair condition.
Frequently Asked Questions
Does Zenagen regrow hair?
Zenagen Revolve and Evolve are designed to promote longer and thicker hair growth. Revolve works by removing DHT in your scalp, which then helps the hair follicles grow new hair. Evolve repairs hair damage and speeds up hair growth by up to 40%.
Does Zenagen work for hair loss?
Yes. Take Revolve Shampoo and Conditioner to reduce and stop hair loss. With regular use, you will see tangible results within a few weeks.
How fast does Zenagen work?
After 2-6 weeks of using Revolve, your hair will shed less. The new hair growth will be visible after 2-3 months of use. To achieve fuller-looking hair, you may have to use the system for 6-7 months.