peptidesgrowth

A yellow dropper bottle labeled Booster Serum Strength & Length for hair care enhances Strength & Volume, featuring Capixyl™ peptide and botanical extracts. Contains 30ml (1.01 fl oz). Black background.

peptidesgrowth

Booster Serum Strength & Length

Name: Booster Serum Strength & Length
Brand: 30 ML
Price: 15.99 USD
Availability: InStock
Rating: 4.7 (97 reviews)

4.7

Rated 4.7 out of 5 stars

97 Reviews

$15.99

‎ | 30ml

A high-strength, leave-in peptide booster that targets sparse or thinning area, fast. Capixyl™ works at the root to support the growth cycle and reduce fall, while Yerba Maté delivers antioxidant caffeine energy.

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More Info

When hair starts to thin or lose strength, the answer lies at the root. The Booster Serum – Strength & Volume delivers a concentrated hit of caffeine and peptides that reactivates follicles, extends the growth phase, and improves hair density from the scalp up.

Powered by Capixyl™, a biomimetic peptide complex and plant-based alternative to Minoxidil, it helps reduce shedding and fortify follicle anchorage for long-term resilience. Yerba Maté caffeine, White Cypress, and Ginkgo Biloba energise the scalp and support healthy circulation, while antioxidant Kaempferol protects follicles from oxidative stress.

Lightweight and fast-absorbing, it leaves no residue — just stronger, thicker-feeling hair with visible lift and vitality. Clinically proven to improve density and strength in as little as five weeks, this serum takes Growth Bomb’s scalp-first philosophy to its highest potency.

Key Ingredients

Capixyl™ (Acetyl Tetrapeptide-3 & Red Clover Extract)
Clinically proven complex that helps reduce hair fall, support regrowth, and improve hair density.

Yerba Maté (caffeine energy)
Antioxidant botanical with natural caffeine to energise the scalp and defend against oxidative stress that can compromise follicles.

White Cypress
Hydrating, volume-boosting extract shown to improve the appearance of hair diameter to enhance visible fullness.

How to use

Apply 2–3 drops to targeted scalp areas (part line, temples, crown). Massage in—don’t rinse. Use once or twice daily.

Power up with the full routine

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Hair Growth Support Kit

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Shop now - $73.60

Booster Serum Strength & Length

real customer results

Everything in our formulas is at an active level, scientifically proven to boost your hair.

Before

After

RESULTS AFTER 30 DAYS

"I started using Growth Bomb at the start of July when I had my last chemotherapy session. Now my hair is much thicker then it was before!!"

Aleisha

Products Hair Growth Support Kit

Before

After

RESULTS AFTER 60 DAYS

"My hair has completely turned around! My scalp went from red and irritated to calm and healthy. I’m genuinely blown away by the results, this routine actually works"

Anna

Products Hair Growth Support Kit

Before

After

RESULTS AFTER 1 YEAR

"I'm honestly SHOOK at these results! I couldn't be happier with how my hair looks. I've done a lot of damage over the years & GB has helped bring my hair back to life."

Brooke

Products Hair Growth Support Kit

Before

After

RESULTS AFTER 90 DAYS

"Your shampoo, conditioner, and serum combo have completely saved my hair! After just a few weeks it’s shinier, healthier, and growing so fast."

Ciara

Products Hair Growth Support Kit

Before

After

RESULTS AFTER 90 DAYS

"My hair's always been dull and dry, and I honestly thought it was just genetics and my hair type forever. But after using the full Growth Bomb range, my hair is actually shiny like, for the first time ever. It feels way healthier and stronger. I'm stoked with the results and kinda wish I tried this sooner!!"

Georgia

Products Hair Growth Support Kit

Before

After

RESULTS AFTER 12 MONTHS

I've been using the range for 12 months religiously and so happy with my overall hair health and growth!

Jemma

Products Hair Growth Support Kit

Before

After

RESULTS AFTER 30 DAYS

"My hair feels thicker, stronger and perfectly smooth.. and it lasts longer between washes as my scalp just feels so clean"

Jenn

Products Hair Growth Support Kit

Before

After

RESULTS AFTER 3 MONTHS

I thought most hair growth products are kinda a scam.. but I'm pleasantly surprised. I naturally have pretty thin hair and my scalp is a bit sparse, so happy I switched to this shampoo and conditioner and started using the booster serum every night. Never thought my hair would actually grow thicker and healthier but here we are!

Julie

Products Hair Growth Support Kit

Before

After

RESULTS AFTER 90 DAYS

"The best decision I've made all year was staying consistent with the Hair Growth Kit. My hair and nails are literally shining, I can't stop looking at them lol. This routine has been a game changer."

Julja

Products Hair Growth Support Kit

Proven clinical results

We fuse proven botanicals with caffeine-powered science to deliver real results you can see and feel. Every formula is crafted to fuel growth, strengthen strands, and boost confidence from root to tip.

View More Results

reported seeing visibly fuller hair.

94%

reported their hair felt healthier.

89%

reported their hair felt stronger

*based on a 5 week consumer study with 35 participants using the Growth Bomb Supercharge Shampoo

4.7

Rated 4.7 out of 5 stars

Based on 97 reviews

Total 5 star reviews: 85 Total 4 star reviews: 5 Total 3 star reviews: 3 Total 2 star reviews: 2 Total 1 star reviews: 2

93%would recommend this product

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97 reviews

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J
Jane
Verified Reviewer
I recommend this product
What texture is your hair? Thin
What are your hair/scalp concerns? thinning & hair loss
How old are you? 35-44
Rated 5 out of 5 stars
2 months ago
Genuinely impressed with the new hair growth!
This patch on my scalp used to be super sparse and thinning, and now it’s so full. My hair also feels so much softer and healthier. I got my mum to try it too for her thinning hair, and she loves it. So worth it!
Was this helpful?
SS
Sarah S.
Verified Buyer
I recommend this product
What texture is your hair? Wavy
What are your hair/scalp concerns? thinning & hair loss, breakage-prone hair, fine & flat hair
How old are you? 18-24
Rated 5 out of 5 stars
3 months ago
Booster serum
Has made my hair overall more hydrated and I have more volume making my hair feel thicker and fuller
Was this helpful?
YP
Yessenia P.
Verified Buyer
I recommend this product
Rated 5 out of 5 stars
1 year ago
5 Stars
Excellent, my hair is recovering quickly and healthily.
Translated from Spanish
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P
Pamela
Rated 3 out of 5 stars
2 months ago
3 Stars
Im just starting it!
Was this helpful?
MB
Margaret B.
Verified Buyer
I recommend this product
What texture is your hair? Wavy
What are your hair/scalp concerns? thinning & hair loss, fine & flat hair, menopausal, Wrinkles
How old are you? 45-54
Rated 5 out of 5 stars
3 months ago
More volume…
I have been using this serum daily since I received it, placing one pipette worth of drops at random spots over my scalp. I massage in for two minutes with my fingertips mainly, sometimes with the scalp brush. After just three weeks, my hair is looking and feeling much more voluminous. I’m very very happy with these results.
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key active ingredients

We blend proven botanicals with clever science to wake up your scalp, energise your roots, and get your hair back to its bold, bouncy best.

Capixyl™

A patented biomimetic peptide combined with red clover flower extract that is rich in biochanin A. It’s an innovative and powerful cosmetic ingredient providing fuller, thicker and healthier looking hair.

Yerba Maté

Antioxidant-rich Yerba Maté extract is packed with caffeine energy. This helps protect hair from oxidative damage and supports healthy roots for optimal condition and strength.

White Cypress

A volume-boosting extract that helps improve the appearance of hair diameter. It's an excellent hydrator that supports anti-breakage by slowing down hair fall due to weak hair.