She'd tried everything - £120 treatments, nine half-used bottles, protective styles. Then a friend set two jars on the table and let her in on a "Honduran secret" nobody had told her.

"I swear, nobody gets it. Doing our hair is a full-time job that never ends."

That's what Andrea told her sister four months ago - comb in one hand, leave-in in the other, perched on the edge of the bath while her youngest splashed in the tub. The hot water had run out two kids ago.

She'd said some version of it every wash day for years. Lately, she just wasn't sure how much fight she had left.

Andrea's a mother of four, and her kids have hair as thick and coily as hers. Wash day wasn't a chore - it was most of the weekend.

Detangling alone took an hour per child. By the time she got to her own hair, late on a Sunday, her arms felt like concrete.

She'd done everything right. Protective styles. Weekly deep conditioning. Trimming her ends before they split. For years.

Her hair still broke at the same length. Her edges still thinned. She told herself it was just her hair type - some people are dealt good hair, some aren't. She'd made her peace with being the second kind.

Last spring, her youngest had her first proper school photo. Andrea spent forty minutes on her own edges that morning, trying to get them to lie flat.

They didn't. Not really.

All morning she did the little things she'd stopped noticing - scarf pulled forward, head angled a certain way, one hand hovering near her hairline.

She cried in the car afterward, engine still running. Not over one bad day. Because she couldn't remember the last morning she hadn't been managing her hair before she'd even had her coffee.

A few months earlier she'd booked a £120 salon scalp treatment. Steam cap, talk of "awakening dormant follicles." Two weeks of softer hair, then right back to square one.

At home, nine half-used bottles lined the cabinet. Castor oil. Rosemary oil. Two growth serums. A biotin supplement she'd quietly given up on.

Nine bottles. Her hair looked exactly the same as before the first one.

They hadn't seen each other in months. When Michelle came round for coffee in June, Andrea actually stared at her. Her edges looked fuller than they had in the ten years she'd known her.

She asked what she'd changed. Michelle reached into her bag, set two jars of Batana on the table, and said: "Guess which one's real batana oil."

Andrea got it wrong. The jar she picked stayed thick and creamy, like cheap moisturizer. The other melted the second Michelle's warm hand closed around it - smooth, even, the way real oil should behave.

"It was never your hair, Andrea. It was what was in the jar."

Real batana only stays at its best in a narrow temperature window - roughly 15 to 24 degrees. Too warm and it turns to liquid. Too cold and it hardens into wax, exactly like the jar Andrea picked.

Get it wrong for long enough and the oil loses what makes it special: staying light enough to absorb instead of sitting on top.

A lot of the batana sold online has already been through that - the back of a van in summer, a warehouse nobody's watching. It looks the same on the shelf. It just isn't the same oil.

So it sits on your hair doing very little, while you go on blaming your hair type for a problem that was never yours.

Michelle's jar was kept temperature-controlled the whole way from Honduras. Hand-harvested by the Miskito people in La Moskitia, who've used it for generations. That's the only reason it still worked when it reached her.

Andrea uses it three times a week now. That's the whole routine - a little worked into her scalp before bed. No steam cap, no ten steps.

Four months in, her arms don't ache after wash day. Her edges are the fullest they've been in years. She's stopped angling her head in photos.

And she wasn't a one-off. In the brand's own 60-day test on 144 women, the same changes kept turning up - less shedding, better moisture, baby hairs along the edges*

She paid £120 for a treatment that lasted a fortnight. A jar of the real thing is a small fraction of that - and right now it's buy one, get one free, so Michelle's jar effectively cost her nothing to try. Every order's backed by a 60-day guarantee: don't see a difference, get every penny back.

It was never her hair. It was never her genetics. It was only ever the oil in the jar.

Marketplaces like Amazon don't climate-control third-party stock. A jar can sit in an unregulated warehouse for weeks, through exactly the heat and cold that changes what batana's meant to be.

Kuri Nüka stores and ships every jar themselves, temperature-controlled the whole way - sold direct, nowhere else. It's also the only way to know a jar is real.

She didn't wait for a sign. She'd already seen one, across her own kitchen table.

The same jar is available now, kept at the right temperature the whole way from Honduras, and sold nowhere but here.

Right now it's buy one, get one free, backed by a 60-day money-back guarantee - don't see a difference, get every penny back. You don't need four more months to stop guessing.