Coffee Arabica & Caffeine

Q: How do I use caffeine for hair in my routine?

The easiest entry points are Wash , our peptide shampoo , and our topical scalp serums . Use Wash every time you shampoo to cleanse the scalp and deliver caffeine and the full Mela-9® Complex to the follicle. Since caffeine is in every topical Arey formula, layering additional products from the lineup, like To The Root® or Good Night, Grey™ , builds on that foundation.

A clinically studied stimulant that energizes hair follicles, counteracts DHT-related thinning, and promotes a stronger, more active hair growth cycle.

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Coffee Arabica & Caffeine at a Glance

What it is: A naturally derived stimulant extracted from Coffea arabica seeds, one of the most researched actives in modern scalp science
What it does: Stimulates follicle metabolism, extends the anagen growth phase, and helps counteract the effects of DHT on the scalp
Found in: Every topical formula powered by the Mela-9® Complex

What Is Coffee Arabica Seed Extract?

Coffea arabica is the species behind most of the world’s specialty coffee, but its seeds contain far more than the compound that wakes you up in the morning. Coffee arabica seed extract delivers a concentrated dose of caffeine along with chlorogenic acids and antioxidant polyphenols that benefit the scalp in their own right.

Caffeine is the primary active of interest in hair and scalp care. It is small enough to penetrate the scalp barrier and reach the hair follicle directly when applied topically, which is what makes it effective as a leave-on or rinse-off ingredient rather than just a dietary one.

At Arey, coffee arabica seed extract is part of the Mela-9® Complex and included in every topical formula we make.

The Science Behind Caffeine for Hair

Caffeine’s effects on the hair follicle are among the most well-researched in topical scalp science. Its primary mechanism involves the inhibition of phosphodiesterase, an enzyme that breaks down cyclic AMP (cAMP). By blocking this breakdown, caffeine elevates cAMP levels inside the follicle, which stimulates cell proliferation and extends the anagen phase, the active growth phase of the hair cycle.

Research has also shown that caffeine can help counteract the effects of DHT (dihydrotestosterone) at the follicle level. DHT is one of the primary drivers of follicle miniaturization and androgenic hair thinning, and studies have found that topical caffeine may reduce its suppressive effect on hair matrix keratinocytes.

Beyond the follicle, caffeine is a well-documented vasodilator. Applied to the scalp, it promotes microcirculation and improves blood flow to the dermal papilla, enhancing the delivery of oxygen and nutrients that support an active growth cycle.

Coffee Arabica & Caffeine Benefits

Stimulates follicle cell metabolism to support a more active hair growth cycle
Helps counteract DHT-related follicle suppression linked to hair thinning
Promotes scalp microcirculation for improved nutrient delivery to the dermal papilla

Why Arey Uses Coffee Arabica & Caffeine

Caffeine is one of the rare scalp actives where the research is both deep and consistent. Multiple peer-reviewed studies have confirmed its ability to stimulate hair follicle keratinocytes, extend the anagen phase, and penetrate the scalp effectively in topical form. That level of evidence is exactly what we look for when building the Mela-9® Complex.

Because caffeine works on the fundamental mechanics of follicle activity, it supports the effectiveness of every other active in the blend. A more energized, better-circulated follicle environment is a better environment for melanin production, growth, and scalp health across the board. That’s why it’s in every topical formula we make, from your first cleanse with Wash to your overnight scalp serum Good Night, Grey®.

Found in These Arey Formulas

Good Night, Grey®

Overnight scalp serum

Not Today, Grey™

Daily supplement

To The Root® Scalp Serum

Daily scalp serum

Wash Shampoo

Pigment-safe shampoo

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Coffee Arabica & Caffeine FAQs

Does caffeine help with hair loss?

Research suggests it can play a meaningful supporting role. Topical caffeine has been shown to stimulate hair follicle keratinocyte proliferation and extend the anagen growth phase, both of which work against the cycle of follicle miniaturization associated with hair thinning. Studies have also found that caffeine may reduce the inhibitory effect of DHT on the follicle, making it relevant for androgenic hair loss in particular. At Arey, caffeine is part of the Mela-9® Complex and included in every topical formula we make to support a healthier, more active scalp environment over time.

What does coffee arabica do for hair growth?

Coffee arabica seed extract delivers topical caffeine along with chlorogenic acids and antioxidant polyphenols that benefit the scalp environment. The caffeine component is the primary active for hair growth: it elevates cAMP levels inside the follicle by inhibiting phosphodiesterase, which stimulates cell proliferation and supports a longer, more active anagen phase. The antioxidant compounds in the extract add a protective layer, helping to neutralize free radical damage that can compromise follicle health over time.

How does caffeine interact with DHT and the scalp?

DHT (dihydrotestosterone) is a hormone derived from testosterone that binds to receptors in the hair follicle and can trigger miniaturization over time, leading to progressively finer and shorter hair. Research has shown that topical caffeine may help reduce DHT’s suppressive effect on hair matrix keratinocytes, the cells responsible for hair production. It does this by stimulating cAMP activity inside the follicle, which counteracts some of the growth-inhibiting signals DHT sends. It is important to note that topical caffeine is not a DHT blocker in the clinical sense; it works by supporting follicle cell activity rather than blocking DHT systemically.

How do I use caffeine for hair in my routine?

The easiest entry points are Wash, our peptide shampoo, and our topical scalp serums. Use Wash every time you shampoo to cleanse the scalp and deliver caffeine and the full Mela-9® Complex to the follicle. Since caffeine is in every topical Arey formula, layering additional products from the lineup, like To The Root® or Good Night, Grey™, builds on that foundation.

Can I use caffeine hair products every day?

Yes. Topical caffeine is well-tolerated for daily use and does not carry the systemic considerations associated with high caffeine intake orally. Wash is designed for use every time you shampoo, and To The Root® Serum is formulated for everyday use. All Arey topical formulas containing caffeine are developed for consistent daily or near-daily application.

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