16,783+ Happy Customers

Stop Hair Loss Early. Grow With Confidence.

Don’t wait until it’s too late — take control of your hair today

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60-day money-back guarantee included 

Superior in every way, here's how...

Minoxidil

Finasteride

Average cost over 1-year

$160

$400

$700

No side effects

Natural ingredients

New hairs in 2-4 weeks

Cost effective

Easy to apply

Results guaranteed

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30-day money-back guarantee included 

Why Choose Our Hair Growth Serum?

Visible Regrowth

Our customers saw visible regrowth after 4 weeks of consistent use

Science Backed

Our formula is science backed using 3% Rosemary, 3% Redensyl, 2% Aminexil and 2% Anagain. Which delivers the best results.

No Side Effects

Unlike other hair growth methods, our serum uses all natural ingredients ensuring there are no harsh side effects

Visible Regrowth

Our customers saw visible regrowth after 4 weeks of consistent use, some users saw after 2 weeks

Science Backed

Our formula uses 3% Rosemary, 3% Redensyl, 2% Aminexil and 2% Anagain. Which delivers the best results

No Side Effects

Unlike other hair growth methods, our serum uses all natural ingredients ensuring there are no harsh side effects

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16,783+ HAPPY CUSTOMERS

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What Our Customers Say...

Heres why we’re rated 4.9/5 by over 16,783 happy customers

What is Quasarous?

We are science-backed hair growth solutions brand which combine cutting-edge ingredients like Redensyl, Aminexil, and Rosemary extract with modern delivery systems for results you can actually see and feel. Whether you're dealing with a receding hairline, thinning crown, or early shedding, our formulas are designed to target the root causes — safely, effectively, and without side effects. No gimmicks. No harsh chemicals. Just real results, proven by real people.

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Your Questions, Answered

Who can you use this?

Anyone experiencing hair thinning, shedding, or a receding hairline — regardless of gender. Our Hair Growth Roll-On Serum is designed for both men and women looking to improve hair density, support regrowth, and restore confidence. Whether you're in your 20s and noticing early signs of loss, or later in life and want to strengthen what you have — this formula works universally. No matter your age, hair type, or stage of hair loss. If you want healthier, fuller hair, this serum is made for you.

How fast can I expect results?

Most people will start to see regrowth within 2-4 weeks of consistent use, we recommend using this on your desired area for 3-5 minutes per day for the best results. 

Does It make my scalp dry, oily or greasy? 

Not at all! and that’s one of the things our customers love most. Our Hair Growth Roll-On Serum is lightweight, fast-absorbing, and specially formulated to leave no greasy residue, no buildup, and no dryness. Unlike many hair products that clog pores or leave your scalp feeling heavy and uncomfortable, our serum glides on clean and absorbs within seconds. It’s powered by clinically backed ingredients that nourish the scalp without disrupting its natural balance so your hair gets what it needs, and your scalp stays fresh, breathable, and irritation-free. Perfect for daily use. No mess. No shine. Just healthier hair from the roots up.

What happens if I try and it doesn't work for me?

We’re confident it will — but if you don’t see results you expected, you’re fully protected with our 30-day money-back guarantee. Our formula isn’t just hype — it’s built on clinically backed ingredients like Redensyl, Aminexil, Anagain, and Rosemary extract, all proven to support real hair growth and scalp health. Thousands of men and women have already seen visible results, often in just a few weeks. But we understand every journey is personal. That’s why we make it risk-free to try. If you’re not satisfied for any reason, just let us know within 30 days — and we’ll give you a full refund, no questions asked.