- Targets hair follicles to support the growth of visibly thicker, fuller, longer hair
- Repairs the scalp’s natural hydration barrier, enhancing its ability to nourish hair for natural softness and shine
- Strengthens hair at the follicle level, effectively reducing shedding and minimizing shower fallout
— Swiss 7-Stem Concentrate™
— Purified Organic Caffeine Extract
— Plant-Derived Niacinamide (Vitamin B3)
— Cold-Processed Organic Quinoa Protein
— Cold-Pressed Organic Aloe Vera Juice
FULL INGREDIENTS
We recommend refrigerating your serum to preserve its potency. For a refreshing boost, apply it chilled — the cold application method enhances both the experience and absorption.
How to apply:
- Push button firmly to fill dropper halfway
- Apply serum directly to scalp area
- Gently massage into dry or damp scalp
- Repeat this process, ensuring 1 full dropper has been applied.
- Do not rinse.
- Use daily for best results.
How long does it take to see results?
When applied daily, expect to see results from The Hair Multiplier in 3-4 months. Our best advice: Consistency is key.
Will The Hair Multiplier make my hair greasy?
No! Because The Hair Multiplier is both fast-absorbing and water-based, it can be applied to the scalp with wet or dry hair without disturbing your style.
What happens if I stop using The Hair Multiplier?
Like any good wellness routine, results require effort to be maintained. If you stop using The Hair Multiplier, you'll see hair return to its natural state within a few months of discontinuing use.
Try The Hair Multiplier risk-free for your first 150 days. If you’re not seeing the growth you wanted, we'll refund your money back—no questions asked
The Hair Multiplier
- Unit price
- /per
Get your teenage hair back with our 15x best-selling organic growth serum.
Powered by Swiss 7-Stem Concentrate™, our lightweight serum penetrates deep into the scalp to multiply growth in dormant follicles — helping you break through your plateau and achieve thicker, longer hair in as little as 3 months.

"Since hair grows in natural 90-day cycles, baby hairs often appear around the 3-month mark. That’s why we advise daily use for at least 3 months to see results."
Sophie Lamora, Director of Research
Clinical Formulations & Hair Biology Division
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Adding product to your cart
- Targets hair follicles to support the growth of visibly thicker, fuller, longer hair
- Repairs the scalp’s natural hydration barrier, enhancing its ability to nourish hair for natural softness and shine
- Strengthens hair at the follicle level, effectively reducing shedding and minimizing shower fallout
— Swiss 7-Stem Concentrate™
— Purified Organic Caffeine Extract
— Plant-Derived Niacinamide (Vitamin B3)
— Cold-Processed Organic Quinoa Protein
— Cold-Pressed Organic Aloe Vera Juice
FULL INGREDIENTS
We recommend refrigerating your serum to preserve its potency. For a refreshing boost, apply it chilled — the cold application method enhances both the experience and absorption.
How to apply:
- Push button firmly to fill dropper halfway
- Apply serum directly to scalp area
- Gently massage into dry or damp scalp
- Repeat this process, ensuring 1 full dropper has been applied.
- Do not rinse.
- Use daily for best results.
How long does it take to see results?
When applied daily, expect to see results from The Hair Multiplier in 3-4 months. Our best advice: Consistency is key.
Will The Hair Multiplier make my hair greasy?
No! Because The Hair Multiplier is both fast-absorbing and water-based, it can be applied to the scalp with wet or dry hair without disturbing your style.
What happens if I stop using The Hair Multiplier?
Like any good wellness routine, results require effort to be maintained. If you stop using The Hair Multiplier, you'll see hair return to its natural state within a few months of discontinuing use.
Try The Hair Multiplier risk-free for your first 150 days. If you’re not seeing the growth you wanted, we'll refund your money back—no questions asked
What Do You Have To Lose?
Real Stories. Real Hair. Real Progress.
Imagine what you could achieve in as little as 3 months.
"... I saw the reviews for this product and honestly, I was still super skeptical. A lot of other products have great reviews too…but they never did anything for me. BUT LET ME TELL YOU. I am EMOTIONAL over the results from using this product about 6 months. After ELEVEN YEARS, I am finally feeling more confident and hopeful ..."– Alyssa W. | 🇺🇸

"The two photos I posted are each 3 months ish apart. I've been trying to grow my hair out, but curly hair takes FOREVER to grow. l've used biotin vitamins before, but they barely worked for me. I heard about this serum on Tiktok and am so happy to see the fast results in just 3 months! I will keep buying this and will recommend it to people trying to grow their hair out fast! I just apply the serum to my scalp, massage it in, and then let it sit for 30min-1 hour before showering. I also apply it to my ends so it prevents breakage! Very happy with this serum!!"– Evan C. | 🇺🇸

"I didn't want this to be worth $118. I really didn't. I wanted to hate it and return it but it's perfect. My hair somehow looks better when I wake up. The serum smells great, it isn't heavy, it doesn't make my style fall out (my hair holds curl really well though), and now when I run out I'll have to spend $118 again. This is my hair 3 days after washing it and I went to the gym all 3 days. I only styled it once. It looks fantastic. HOW"– Cassidy M. | 🇺🇸

*Based on a self-reported 12-week consumer-use survey of 40 participants using The Hair Multiplier once daily.
96%
Reported visibly thicker, fuller, longer hair.*
93%
Reported an improvement in the softness and shine of their hair.*
90%
Reported a significant reduction in hair shedding and fallout.*
How To Apply The Hair Multiplier
Easily fit it into your daily routine in under 15 seconds—ideal for even the most hectic mornings.
How To Apply The Hair Multiplier
Easily fit it into your daily routine in under 15 seconds—ideal for even the most hectic mornings.
Rooted in Science

Swiss 7 Seed Complex
Years in the Making, Rooted in Renewal
Inspired by the untouched beauty of the Swiss Alps, our Swiss 7-Stem Concentrate™ channels the spirit of rare alpine botanicals—thriving in pure, mineral-rich environments. Our formula was born from their example: a meticulous blend of seven powerful plant extracts and bioactive peptides—each selected to reflect the purity, resilience, and quiet strength of nature at its best.

Purified Organic Caffeine Extract
To Multiply and Thicken Hair
Sustainably sourced and meticulously purified, our Organic Caffeine Extract awakens the scalp with a surge of energy, stimulating microcirculation to deliver oxygen and vital nutrients to the hair follicles. This infusion supports the natural growth cycle, fortifying strands at the root for enhanced resilience. With each use, hair appears visibly fuller, stronger, and infused with a radiant, healthy shine.

Plant-Derived Niacinamide (Vitamin B3)
Nature's Hydration Blueprint
Sourced from the finest botanical origins, Plant-Derived Niacinamide restores the scalp’s natural moisture barrier, soothing dryness and fortifying against daily stressors. By supporting cellular renewal, it nurtures a balanced, resilient scalp—laying the perfect foundation for stronger, shinier, and more vibrant hair with every application.

Organic Aloe Vera Leaf Juice
Mother Nature's Moisturiser
Our aloe vera is sustainably harvested to retain its rich blend of vitamins, antioxidants, and amino acids. Known for its soothing properties, it calms the scalp while giving your hair strands the deep hydration it needs. This botanical elixir restores balance, reduces dryness, and enhances softness and shine, leaving hair feeling silky and revitalized from root to tip.
LABRATORY
TESTED
CRUELTY
FREE
VEGAN
FRIENDLY
FORMULATED WITHOUT
HORMONES,
DRUGS
SILICONES,
SULFATES
Our Reviews
- Maria S.Verified BuyerReviewingThe Hair MultiplierI recommend this productWhat is your age range? 25-34What are your main concerns? Hair too thin, Hair shedding, Bald spotsWhat is your hair type? Thin, StraightWhat is your hair length? MediumHow often are you applying this? Every dayHow many months have you been using this for? 90 days (3 months)What improvements have you actually noticed? Hair is thicker, Filled in bald spotsRated 5 out of 5 stars3 weeks agoWorth the investment
I have tried cheaper priced stuff in the past (Ordinary, rosemary oil, amazon serums) and I have come to the conclusion that you get what you pay for. Cheap products always made my scalp red and irritated. This is the first time I have spent more on a hair product after battling with years of hair loss due and age and stress. Conclusion: I'm happy I did. This works if you're very consistent. I've taken photos of my hair 3 months apart. I've noticed significant regrowth in areas that we once bare. There is also hardly any fallout in the shower anymore. I have a shower drain catcher so I can check. Even my hairdresser says it's a noticeable improvement. I've just began my 4th bottle now to keep the momentum going. Wonderful product. Will continue to buy and recommend to others.
Was this helpful? - Dawn F.Verified BuyerReviewingThe Hair MultiplierI recommend this productWhat is your age range? 55-64What are your main concerns? Hair too thin, Hair shedding, Bald spotsWhat is your hair type? Thin, StraightWhat is your hair length? MediumHow often are you applying this? Every dayHow many months have you been using this for? 90 days (3 months)What improvements have you actually noticed? Hair is thicker, Hair looks healthier, Filled in bald spotsRated 5 out of 5 stars1 month agoLadies, it WORKS
I bought this hair serum not expecting very much (I have "old-soul" hair and tried every thing). I'm pleasantly surprised. I've used Minoxidl before but it was too heavy and greasy which I hated. I've been following Le Jardin for years so when I saw the new serum I got the 3 pack and have been at it for a full 3 months now; I see my bald areas filling in nicely (pics to chuckle at) and the rest of my hair has grown out really long. It's not instant; however, it does work. The smell is fresh and light (I get compliments often on the smell), and the fluid itself is lightweight so I don't feel like I need to wash my hair often. Overall i'd buy again.
Was this helpful? - Nessa C.Verified BuyerReviewingThe Hair MultiplierI recommend this productWhat is your age range? 18-24What are your main concerns? Hair won't grow past certain lengthWhat is your hair type? Thick, StraightWhat is your hair length? LongHow often are you applying this? Every dayHow many months have you been using this for? 60 days (2 months)What improvements have you actually noticed? Hair is longer, Hair looks healthierRated 5 out of 5 stars1 month agoHair grew 2 inches!!!
An influencer I follow talked about this on a podcast so I gave it a shot and I'm amazed. Not only made my hair feel thicker but it made my hair grow FAST. I feel like it wont stop growing now and my boyfriend says I have way too much hair😭. I apply twice a day because I have a trip coming up and I didn't have time to wait 6 months for growth. So happy with the results so far. I always am gonna reach for this. It didn’t weigh my hair down at all and never left my scalp or hair greasy which has always been a worry for me. Def an A+ in my eyes.
Was this helpful? - Kelly W.Verified BuyerReviewingThe Hair MultiplierI recommend this productWhat is your age range? 35-44What are your main concerns? Hair shedding, Bald spotsWhat is your hair type? Thick, StraightWhat is your hair length? MediumHow often are you applying this? Every dayHow many months have you been using this for? 60 days (2 months)What improvements have you actually noticed? Hair is thicker, Filled in bald spotsRated 5 out of 5 stars1 month agoOBSESSED
A friend from my pilates class suggested this and I am obsessed!! It has really really started to help regrowth on my hair and thicken it in the short time i've been using it (about 2 months) Easy to put into my routine and use. Doesn't irritate my scalp at all and I just really love this hair growth support from Le Jardin! The scalp hydration is my FAVORITE part is hands down to really protect the hair barrier! Highly recommend by far!!
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