This Scalp & Hair Serum Is The Affordable Solution For Glossier Hair (2025)

Just like your complexion, your scalp needs regular TLC to function at its best—because great hair doesn’t start with the perfect blow-dry, a silk pillowcase, or your stylist’s secret glossing spray (although, they certainly help). It starts at the root—literally.

In the same way skincare taught us to look beyond the surface, scalp care is fast becoming a non-negotiable in any smart hair routine. And right on cue, one ingredient has taken over our TikTok feeds: rosemary oil.

If you’ve spent any time on HairTok lately, chances are you’ve come across the rosemary oil obsession. Touted for its ability to promote circulation, stimulate follicles and support hair growth, it’s become the star of every DIY hair hack going viral.

But while the concept is clever, the execution? Not so much. As it turns out, dousing your roots in pantry-grade oil isn’t always the most effective—or elegant—solution.

Thankfully, there’s a better way. HASK’s new Scalp & Hair Serum has bottled all the benefits of rosemary and tea tree oil that fits seamlessly into your hair care routine. The US-born brand has built a loyal following thanks to its science-led formulas and affordable, salon-worthy results—and their latest launch taps into everything we’re craving from a modern scalp treatment.

What Are The Benefits Of Rosemary Oil For Hair Health?

Rosemary oil is thought to improve scalp circulation, reduce hair breakage and strengthen hair follicles resulting in stronger strands, less breakage and improved hair growth.

Unlike sticky oils or heavy treatments, this lightweight serum is infused with rosemary oil to help boost blood flow at the scalp and support hair health from the root, while the tea tree oil acts to purify and rebalance. It’s clean, non-greasy, and safe for colour-treated hair, thanks to a formulation free from silicones, parabens and drying alcohols.

Think of it as a detox-meets-repair moment for your scalp. Whether you’re dealing with dryness, flakes, or just want to boost your hair’s natural thickness, a few drops massaged in daily is all it takes. And because it’s non-greasy and lightweight, it won’t disrupt your style routine (or leave behind any residue).

Because at the end of the day, great hair doesn’t just happen. It grows from a healthy foundation.

Hask Scalp & Hair Serum

$27 at Hask

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