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HAIR GROWTH KIT

Our Hair Growth Kit pairs a plant-powered Gro® Serum with the Gro® Roller to wake up dormant follicles, curb shedding, and visibly thicken hair without drugs or harsh chemicals.

Reactivates hair growth cycle for fuller density

Gro® Roller boosts serum absorption up to 300%

"We strongly recommend a 3-month supply, as clinical studies show it takes at least 45 days to reduce hair loss and 90 days to visibly increase hair density."

Dr. Claire Morrison -
Trichologist & Hair Science Expert

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Scientifically Formulated

How does Gro® compare to pharmaceutical hair loss treatments?

Gro® is a drug-free, plant-powered alternative that works with your body—not against it. Unlike pharmaceutical options, it contains no hormones, no minoxidil, and no ingredients known to disrupt your body’s natural balance. It’s safe for daily use and ideal for long-term support without harsh side effects.

What’s the scientific backing behind Gro®?

Gro® Serum was tested in a 90-day clinical study using the combined power of our active botanical ingredients. Participants saw:

  • 14,300+ average new hairs
  • 97% experienced less hair loss
  • 94% had reduced shedding
  • 86% saw visibly increased density


This formula is rooted in science and powered by plants—proven effective without medications.

When will I start seeing results?

Most users begin noticing less hair fall in the shower or brush within a few weeks. With consistent daily use, visible improvements in density and coverage are commonly reported by Day 90, with best results seen after 3 months of continued use.

What types of hair loss is Gro® effective for?

The Gro® formula is effective for most common types of hair loss—as long as your follicles are still active. This includes early-stage thinning, receding hairlines, stress-related shedding, and male or female pattern hair loss. Starting early is key, as dormant follicles are more responsive to reactivation in the initial stages of hair loss.

How do I use the Gro® Hair Growth Kit?

For optimal hair growth, use the Gro® Roller every third day and apply the Gro® Serum daily.


  1. Clean the Gro® Roller with the Cleanser, ensuring you cover the entire head of the roller.


2. Locate the target areas and roll 10 times back and forth horizontally, vertically, and diagonally. Roll every third day.


3. Apply light pressure; it shouldn't hurt. Apply the Hair Activator to the desired areas. It's a leave-on serum, so let it absorb for a few minutes before applying other products. Apply every day.


Disclaimer: For external use only. Avoid contact with eyes. Discontinue use and consult a healthcare professional if irritation persists. Keep out of reach of children.

AS SEEN ON

AS SEEN ON

3-MONTH RESULTS

Growth Progress with the Hair Growth Kit

Pictures shared by real customers and test persons.

Mike W. | 36 ★★★★★
"After 3 months of use, I noticed my crown filling in fast. My wife even commented how much thicker it looked."
Crown thinning
Thicker hair
Visible regrowth
Derrick J. | 48 ★★★★★
"Stress was taking a toll and my hair started falling out in clumps. I’ve been using this daily and the shedding has reduced massively. It’s part of my routine now."
Receding hairline
Reduced shedding
Nathan S. | 34 ★★★★★
"3 months in and I’m seeing less scalp and more coverage. Even my barber noticed new growth."
Scalp visibility
Increased density
Eric T. | 51 ★★★★★
"As I aged, my hair just kept getting thinner. This gave me noticeable volume and slowed the loss. I wish I’d started sooner."
New baby hair
Bare spots filled
Hair regrowth
Liam M. | 44 ★★★★★
"I gave it a full 3 months and I’m blown away. No more bald patch on the back. Hair feels healthier too."
Bald patch gone
Healthier texture
James P. | 58 ★★★★★
"Nothing I tried helped with my patchy scalp until this. My confidence was low, but now I actually feel excited looking in the mirror again."
Thicker coverage
Hair revival
Persistent spots

CLINICAL STUDY

RESULTS DEMONSTRATED AFTER 90 DAYS

We have developed the Gro® formula that uses effective active ingredients to help users achieve their hair goals. Our Gro® Serum demonstrated the following results:

14,300

Avg. new hairs

97%

experienced less hair loss

94%

had a reduction in hair loss

86%

had an increase in hair density

MORE THAN A FEELING

Effective active ingredients

Powered by Gro® Serum science, every ingredient is hand-selected from peer-reviewed research and third-party tested for purity and potency. We fuse nature’s most studied botanicals—Red Clover, Ginseng, Green Tea—with high-impact actives like Acetyl Tetrapeptide-3, Biotin, and Caffeine, each refined to its optimal molecular profile. The result: a drug-free, cruelty-free, 100 % vegan formula that delivers clinical-level hair-growth power without harsh chemicals or compromises.

Growth
Acetyl Tetrapeptide-3 + Red Clover Extract
A biomimetic peptide teamed with Biochanin-A–rich Red Clover. In clinical studies, it extended the anagen phase and cut daily shedding by up to 46%, strengthening the follicle “anchor” so new hair stays put.
Stimulate
Caffeine
Penetrates the scalp in minutes to boost micro-circulation and energise follicles. Helps counter the effects of DHT, leading to visibly thicker strands and faster regrowth momentum.
Strengthen
Biotin (Vitamin B7)
The ultimate keratin builder: fuels the proteins that make up 90% of every hair shaft. Results in stronger, more elastic strands that resist breakage and look fuller from root to tip.

GROWTH

Acetyl Tetrapeptide-3 + Red Clover Extract

A biomimetic peptide teamed with Biochanin-A–rich Red Clover. In clinical studies, it extended the anagen phase and cut daily shedding by up to 46 %, strengthening the follicle “anchor” so new hair stays put.

STIMULATE

Caffeine

Penetrates the scalp in minutes to boost micro-circulation and energise follicles. Helps counter the effects of DHT, leading to visibly thicker strands and faster regrowth momentum.

STRENGTHEN

Biotin (Vitamin B7)

The ultimate keratin builder: fuels the proteins that make up 90 % of every hair shaft. Results in stronger, more elastic strands that resist breakage and look fuller from root to tip.

Show full Ingredients

Aqua (Water), Propanediol, Butylene Glycol, Thuja Orientalis Leaf Extract, Biotin, Panthenol, Camellia Sinensis Leaf Extract, Sodium Hyaluronate, Adenosine, Caffeine, Panax Ginseng Root Extract, Trifolium Pratense (Clover) Leaf Extract, Ginkgo Biloba Extract, Glycine, Larix Europaea Wood Extract, 1,2-Hexanediol, Hydroxyacetophenone, Glycerin, Propylene Glycol, Alcohol, Diaminopyrimidine Oxide, Xanthan Gum, Serenoa Serrulata Fruit Extract, Phenoxyethanol, PEG-40 Hydrogenated Castor Oil, Lecithin, Pyrrolidinium Diaminopyrimidine Oxide, Cholesterol, PPG-26-Buteth-26, Melatonin, Acetyl Tetrapeptide-3, Zinc Oxide, Pisum Sativum (Pea) Extract, Sodium Benzoate, Zinc Chloride, Sodium Metabisulfite, Apigenin, Azelaic Acid, Betaine, Oleanolic Acid, Biotinoyl Tripeptide-1


Show full Ingredients

Aqua (Water), Propanediol, Butylene Glycol, Thuja Orientalis Leaf Extract, Biotin, Panthenol, Camellia Sinensis Leaf Extract, Sodium Hyaluronate, Adenosine, Caffeine, Panax Ginseng Root Extract, Trifolium Pratense (Clover) Leaf Extract, Ginkgo Biloba Extract, Glycine, Larix Europaea Wood Extract, 1,2-Hexanediol, Hydroxyacetophenone, Glycerin, Propylene Glycol, Alcohol, Diaminopyrimidine Oxide, Xanthan Gum, Serenoa Serrulata Fruit Extract, Phenoxyethanol, PEG-40 Hydrogenated Castor Oil, Lecithin, Pyrrolidinium Diaminopyrimidine Oxide, Cholesterol, PPG-26-Buteth-26, Melatonin, Acetyl Tetrapeptide-3, Zinc Oxide, Pisum Sativum (Pea) Extract, Sodium Benzoate, Zinc Chloride, Sodium Metabisulfite, Apigenin, Azelaic Acid, Betaine, Oleanolic Acid, Biotinoyl Tripeptide-1

Hair LOss can be reduced

As long as there are active hair follicles, there is a chance for growth. But how to know if they’re active? In most early-stage hair loss cases, the follicles are still capable of growing hair. They just need some help.

WHAT'S THE CAUSE OF HAIR LOSS?

Hair loss can be triggered by many factors: genes, hormonal swings, medications, illness, even daily habits but they usually disrupt just one key process:


Your hair-growth cycle.


In a healthy scalp, about 90% of strands stay in the active growth phase, while the other 10 % rest or prepare to shed.


Hair loss occurs when that ratio tips, sending more follicles into the shedding stage.

THE SOLUTION

To stop excess fall-out and grow hair, 2 things need to happen:


  1. An increase in the number of hairs in the growth phase
  2. A decrease in the number of hairs in the shedding phase


Genes and age are set, but research shows the growth cycle itself can be rebalanced.


And most of the time, you can nudge it back on track with nature-powered support, no drugs needed.

CLINICALLY PROVEN HAIR GROWTH, WITHOUT DRUGS

In an in-house study, 50 men and women of diverse ages applied Gro® Serum once a day for 90 days. Assessments showed the formula could extend the growth phase and cut back the shedding phase.


What did that mean in practice?


  • 98% were pleased with their results
  • 94% had a reduction in hair loss
  • 86% had an increase in hair density

WHY OUR KIT IS SPECIAL

Reversing hair loss

The Hair Growth Kit is a breakthrough in reversing hair loss, combining microneedling with the potent Gro® Serum to stimulate regrowth and improve scalp health efficiently.

The Gro® Roller enhances blood flow, boosting nutrient delivery to hair follicles.

The Gro® Serum stimulates growth by transitioning follicles to the active growth phase.

Fuller, thicker hair results from better absorption, blood flow, and stimulation.

If you don’t see results in 90 days, we’ll refund you

Step 1: Track Your Progress

Take a clear photo of your scalp before starting and once every month. Progress is often more visible in photos than in the mirror!

Step 2: Apply Gro® Serum Daily

Use the Gro® Serum every single day—even if you don’t wash your hair. Consistency is key to reactivating your hair growth cycle.

Step 3: Commit to 90 Days

Use at least three bottles of Gro® Serum over a 90-day period. This is when most users see noticeable results, including reduced shedding and visible thickening.

WHAT'S INSIDE

THE HAIR GROWTH KIT

GRO ROLLER
GRO ROLLER
A specialized derma roller that creates micro-channels, boosts blood flow, and optimizes serum absorption.
GRO SERUM
GRO SERUM
Stimulates new hair growth by activating follicles and preventing them from entering the hair loss phase.

GRO® ROLLER

A specialized derma roller that creates micro-channels, boosts blood flow, and optimizes serum absorption.

GRO® SERUM

Stimulates new hair growth by activating follicles and preventing them from entering the hair loss phase.

HOW TO USE

THE HAIR GROWTH KIT

For optimal hair growth, use the Gro® Roller every third day and apply the Gro® Serum daily.

Clean and disinfect the Gro® Roller before using.

Locate the target areas and roll 10 times back and forth horizontally, vertically, and diagonally. Roll every third day. Apply light pressure; it shouldn't hurt.

Apply the Gro Serum® to the desired areas. It's a leave-on serum, so let it absorb for a few minutes before applying other products. Apply every day.

FAQs

GOT QUESTIONS?

WE'VE GOT YOU COVERED!

GOT QUESTIONS?

WE'VE GOT YOU COVERED!

Feel free to chat with us via email at support@cupids.com.

What can I expect and when?

Many users begin noticing new, fine white hairs (called vellus hairs) within 4–8 weeks of consistent use of the Gro® Hair Growth Kit. More visible results—such as thicker, fuller strands—typically emerge by 10–12 weeks, depending on individual hair growth rates.

Hair growth takes time, and every scalp responds differently. That’s why we recommend committing to a 90-day journey with Gro® to properly evaluate your progress.

Even after early progress, we suggest continuing your regimen. Turning vellus hairs into thicker, long-lasting strands is a gradual process.

How does it work?

The Gro® Roller uses 1,140 titanium microneedles to gently create microchannels on the scalp. This boosts blood flow and helps deliver nutrients directly to both active and dormant follicles.

After rolling, apply the Gro® Serum—a high-performance formula that works to:

  • Reactivate inactive follicles
  • Strengthen hair at the root
  • Reduce breakage and hair loss

Used together, the Gro® Roller and Serum form a powerful routine to stimulate new hair growth and protect emerging strands. For best results, use daily for 90 days.

How often should I use the Hair Growth Kit?

The Gro® Serum should be applied to your scalp once every morning or before you go to bed. It's a leave-in serum, meaning that you shouldn’t wash your hair after the application.


We recommend using the Gro® Roller every third day for the best results.

Can I cut my hair while using the Hair Growth Kit?

Yes.


However, to avoid destroying the formation of new vellus hairs, we don't recommend a clean shave of the scalp.


You can start using the Hair Growth Kit with any type of hair density and length.

Does it have any side effects?

The product does not have any side effects or allergens.

The product is safe to use and meets all standards for safety.

How long does one Gro® Serum last?

One bottle of Gro® Serum contains 50 ml. 1.6-1.7ml. should cover the entire scalp - so one serum should last for around 1 month.

How long does the Gro® Roller last?

The Gro® Roller does not have a specific end date, however, the needles should always be sharp enough to penetrate the top layer of the scalp with ease. So if the needles feel “round” instead of pointy - a replacement is needed.

Can I use other products while using the Hair Growth Kit?

Yes, you can continue using other hair products such as shampoos, conditioners, and styling products while using the Gro® Hair Growth Kit.

Can I dye my hair while using the Hair Growth Kit?

Dying your hair is done at your own risk, some dyes contain ingredients damaging to hair strands. Therefore, if you choose to dye your hair, do yourself a favour and make sure it does not contain harmful ingredients such as Ammonia.

Can I combine with minoxidil?

Minoxidil is a very harsh and temporary solution. In comparison, the Hair Growth Kit boosts your hair growth in a natural way. Combine at your own risk - we DO NOT recommend it, though!

Do I need to continue using the kit to maintain my results?

Yes. Like with most hair growth solutions, continued use is key to maintaining your results.

Hair follicles can become inactive again if the routine is stopped. To keep your hair looking fuller and to support ongoing growth, we recommend making the Gro® Hair Growth Kit a consistent part of your long-term routine—even after you see results.

Think of it as ongoing support for your hair health.

What are the ingredients in the Gro® Serum?

Ingredients in the Gro® Serum: 


Aqua (Water), Propanediol, Butylene Glycol, Thuja Orientalis Leaf Extract, Biotin, Panthenol, Camellia Sinensis Leaf Extract, Sodium Hyaluronate, Adenosine, Caffeine, Panax Ginseng Root Extract, Trifolium Pratense (Clover) Leaf Extract, Ginkgo Biloba Extract, Glycine, Larix Europaea Wood Extract, 1,2-Hexanediol, Hydroxyacetophenone, Glycerin, Propylene Glycol, Alcohol, Diaminopyrimidine Oxide, Xanthan Gum, Serenoa Serrulata Fruit Extract, Phenoxyethanol, PEG-40 Hydrogenated Castor Oil, Lecithin, Pyrrolidinium Diaminopyrimidine Oxide, Cholesterol, PPG-26-Buteth-26, Melatonin, Acetyl Tetrapeptide-3, Zinc Oxide, Pisum Sativum (Pea) Extract, Sodium Benzoate, Zinc Chloride, Sodium Metabisulfite, Apigenin, Azelaic Acid, Betaine, Oleanolic Acid, Biotinoyl Tripeptide-1

Does it work for my beard?

The Hair Growth Kit is made for scalp stimulation only.

Can this work if I've experienced long-term hair loss and have minimal hair left?

The Gro® Hair Growth Kit is most effective during the early to moderate stages of hair loss. If you've experienced long-term thinning or have minimal hair remaining, results may be limited—particularly in cases of advanced or scarring alopecia.

That said, many still use the kit to help support the health of existing hair and potentially reactivate follicles that are still viable.

Everyone’s hair journey is unique, and you’re protected by our 90-Day Money-Back Guarantee, so you can try it and see how your scalp responds—risk-free.

We’re here to support you at every stage.

The Best Choice for Hair Growth

SEE WHY 112,000+ MEN TRUST CUPIDS

Kent G.

Verified Buyer

★★★★★

2 days ago

Started using both the serum and roller consistently and I’m already seeing small baby hairs come in. Feels legit.

Brad S.

Verified Buyer

★★★★★

2 days ago

I’ve tried oils, shampoos, and even supplements, but this kit is the first thing that’s actually shown results. My hair feels thicker to the touch, and the thin patches aren’t as obvious anymore. It’s easy to use, and I appreciate the straightforward instructions. Definitely buying again when I run out.

Clement P.

Verified Buyer

★★★★★

1 day ago

Even my barber noticed some thickening around the temples. Loving the results so far.

 Richard L.

Verified Buyer

★★★★★

22 hours ago

Packaging was top-notch. Looks and feels like a high-end product. Using daily now.

Philip D.

Verified Buyer

★★★★★

20 hours ago

Super quick to apply and doesn’t mess up my hair. I keep it on my bathroom shelf, nice part of my routine.

Paul M.

Verified Buyer

★★★★★

14 hours ago

Not a miracle overnight, but there’s some progress. Patience is key.

Lucas P.

Verified Buyer

★★★★★

12 hours ago

I’ve only had this for about two weeks, so I’m not expecting miracles yet. That said, it’s easy to use, and I actually look forward to applying it each night. The serum absorbs quickly and has a nice natural scent. So far, no complaints at all.

Tommy J.

Verified Buyer

★★★★★

11 hours ago

Been using the serum on patchy beard spots and surprisingly it’s filling in too. Win-win.

Patrick M.

Verified Buyer

★★★★★

8 hours ago

Can’t say it’s grown a ton yet, but I noticed way less hair in the shower drain.

Levi R.

Verified Buyer

★★★★★

7 hours ago

This is the first one that doesn’t feel like a gimmick. Hair looks fuller and healthier. Will repurchase.

Benjamin H.

Verified Buyer

★★★★★

4 hours ago

Honestly, I wasn’t expecting much, but I’m impressed. The roller is comfortable to use and gives a satisfying tingle, and the serum doesn’t leave my scalp oily at all. After 5 weeks, my wife even mentioned my hairline looked slightly fuller. Definitely sticking with it.

Jack N.

Verified Buyer

★★★★★

3 hours ago

Most products like this feel cheap, but this one is clearly built to last. The roller is smooth and doesn’t tug or irritate, and the serum has a nice calming effect on the scalp. Haven’t seen major results yet, but I’m committed to the routine. Fast delivery too.

24/7 customer service that actually cares!

Contact our customer support team: support@cupids.com

© 2025, Cupids

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HAIR GROWTH KIT

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