Booster Serum Strength & Length

Name: Booster Serum Strength & Length
Brand: Growth Bomb
Price: 27.99 AUD
Availability: OutOfStock
Rating: 4.7 (101 reviews)

4.7

Rated 4.7 out of 5 stars

101

$27.99 AUD

‎ | 30ml

A high-strength leave-in peptide serum for visibly denser, thicker-looking hair. Powered by Capixyl - a patented biomimetic peptide complex - this precision scalp treatment supports the conditions for stronger, denser-looking hair from the root up. Yerba Maté delivers antioxidant caffeine energy to the scalp. Every active dosed for performance, not marketing.

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More Info

When hair starts to lose strength and volume, the answer starts at the scalp. The Booster Serum delivers a concentrated hit of caffeine and peptides to support visibly denser, thicker-looking hair from the scalp up.

Powered by Capixyl - a patented biomimetic peptide complex with Red Clover extract - alongside natural caffeine from Yerba Mate and Niacinamide for scalp barrier support. Every active is dosed for efficacy, not marketing.

Learn more about the ingredients behind this formula: growthbomb.com/pages/the-science

Ingredients

Water (Aqua), Butylene Glycol, Propanediol, Glycerin, 1,2-Hexanediol, Hydroxyacetophenone, Xanthan Gum, Ilex Paraguariensis Leaf Extract, Backhousia Anisata Leaf Extract, Callitris Glaucophylla Leaf Extract, Citric Acid, Sodium Benzoate, Dextran, Acetyl Tetrapeptide-3, Potassium Sorbate, Trifolium Pratense (Clover) Flower Extract.

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.

For best results, pair with Supercharge Shampoo/Conditioner to keep the scalp clear and receptive.

Power up with the full growth routine

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real customer results

Everything in our formulas is at an active level. Charged to perform. Real people, real results.

Before

After

RESULTS AFTER 30 DAYS

"I started using Growth Bomb at the start of July. 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

Proof that performs. 5-week consumer study, 35 participants.

Scalp-first science that hits fast. We combine caffeine-powered actives with clinically studied botanicals to create formulas built for visible performance - stronger, fuller-looking hair you can actually see and feel.

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 101 reviews

93%would recommend this product

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101 reviews

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R
RB
Verified Reviewer
I recommend this product
What texture is your hair? Thin
What are your hair/scalp concerns? fine & flat hair
How old are you? 25-34
Rated 5 out of 5 stars
4 months ago
A Miracle in a Dropper Bottle for Fine, Oily Hair
I have fine hair and an oily scalp, and NOTHING has worked for me like this serum. First use and my hair was softer, shinier, less greasy, and somehow had MORE volume at the roots instead of less. It genuinely feels like skincare for the scalp, not just another hair product.
What shocked me most is that it’s literally replacing dry shampoo for me, which I NEVER expected. My roots stay fresher, lighter, and more balanced without feeling coated or heavy. This serum is a miracle in a dropper bottle.
I’m never stopping this product. Please NEVER discontinue it.
Also… why is nobody talking about this???
Was this helpful?
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
7 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
9 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
Was this helpful?
L
Lauren
I recommend this product
What texture is your hair? Wavy
What are your hair/scalp concerns? breakage-prone hair
How old are you? 18-24
Rated 5 out of 5 stars
4 months ago
Booster Serum Review
Have been using this hair growth serum for a few weeks and have seen so much more hair growth! Love this product.
Was this helpful?

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.