Asta Korean Shampoo Bar
Stop Fighting Thinning Hair. Wake Up Your Scalp, Grow Thicker Hair Naturally.
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Wakes up a tired scalp from the very first wash
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Visible growth most women notice within 6 to 8 weeks
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Twelve fermented herbs, full strength, never diluted
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Sulfate free, gentle on sensitive skin
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One bar, every hair type
Trusted by 10,000+ People
Less than 1% ever use our 60-Day Guarantee
60-Day Scalp Guarantee
Try the ASTA Scalp Revival Bar for 60 days. If you don't see less shedding and a healthier scalp, we'll refund every cent. No complicated process, no return shipping. Email us at support@tryasta.com and we'll sort it out. The only thing you risk is another two months of watching hair fall out.
The Science Behind It
Your scalp is skin, and like the rest of your skin it needs room to breathe. Daily liquid shampoo leaves behind a residue of sulfates, silicones and heavily diluted actives that sit on the surface, clog follicles and quietly trigger irritation. Over time that shows up as thinning, extra shedding and hair that never quite reaches its potential.
Korean scalp care works from a different angle. Instead of coating the hair, you treat the skin it grows from. Each ASTA bar carries twelve fermented herbs straight onto your scalp at full strength during a 60-second ritual, with nothing diluting them along the way. Fermentation breaks these botanicals down into smaller compounds your scalp can actually absorb, calming irritation and unclogging follicles instead of just coating over them.
The goal isn't to force new hair to appear overnight. It's to give your scalp the conditions it needs to do what it was already capable of doing.
What's Inside
No proprietary blends, no unnecessary fillers. Just twelve fermented Korean herbs and a handful of nourishing botanicals in every bar:
The Korean Scalp Actives
Oriental Arborvitae, Woad Root, Dendrobium Orchid, He Shou Wu (Fo-Ti), Dong Quai, Black Ganoderma Mushroom, Ku Shen (Shrubby Sophora), Ginseng, White Mulberry Root Bark, Three-Leaf Vitex Fruit, Paris Polyphylla, Indigo
Nourishing Base Oils
Coconut Oil, Grapeseed Oil, Olive Oil, Shea Butter, Jojoba Oil, Macadamia Oil, Fractionated Coconut Oil
Scalp-Reviving Essential Oils
Rosemary Leaf Oil, Chinese Peppermint, Ginger Root Oil, Tea Tree Oil, Frankincense Oil, Cedarwood Oil, Lemongrass Oil
Supporting Botanicals
Sesame, Goji Berry, White Mulberry Fruit, Licorice Root, Rosemary, Dandelion, Butylene Glycol
Free from: sulfates, parabens, silicones, synthetic fragrance, artificial colours.
Vegan and cruelty-free.
Is It Safe?
Yes. Every bar is made from natural, plant-derived ingredients, with no pharmaceuticals, hormones or synthetic chemicals added.
As with any new personal care product, we recommend a small patch test on the inner wrist before your first full wash, especially if you have a specific scalp condition or a known sensitivity to botanical ingredients. If you are pregnant or breastfeeding, check with your doctor before use.
Shipping & Returns
Orders are packed and shipped within one to two business days, with tracking sent straight to your inbox. Most parcels arrive within six to nine working days worldwide, depending on your location.
60-Day Returns: not happy with your bar? Reach out within 60 days of delivery and we'll sort out a full refund, no questions asked. Items must be in original packaging. Email us at support@tryasta.com and we'll handle everything.
FAQ
How does it work? Our concentrated solid bar puts twelve fermented Korean herbs directly onto your scalp at full strength, with no water filler and no sulfates. A 60-second massage ritual clears buildup and gives tired follicles a reason to wake up.
How long does one bar last? Most people get forty to fifty washes out of one bar, roughly six to eight weeks of regular use. [VUL HIER JE EIGEN PRIJS PER WASBEURT IN, gebaseerd op jouw verkoopprijs]
Can I use it with my existing serums? Yes, and it actually helps. A clear, unclogged scalp lets whatever serum or treatment you already use absorb the way it's supposed to.
See the full FAQ below for more.
Trusted by 10,000+ people
Verified customers who made the switch — and never looked back.

Three months in and I finally feel like my old hair is coming back. The patches that used to show through are filling in, and people have started noticing.

It's been a few months now and the difference is real. My part line doesn't look as wide anymore and I'm finding way less hair in the shower drain.

I was skeptical at first, but after using it consistently for a couple of months, the thin spot near my temples has actually started filling back in. My hair just looks thicker overall.

Your scalp is the root of the problem, literally.
Built for any hair type, any gender, any age.
Most shampoo is built around lathering your hair. This bar is built around waking up the skin underneath it. Twelve fermented Korean herbs go on at full strength, no watered down formula, so your scalp gets an actual dose instead of a rinse and repeat.
- Visible results in 6–8 weeks
- 100% natural ingredients
- Sulfate-free & dermatologist approved
How it works

Wash your hair
Glide the bar section by section over a damp scalp.

Massage
Massage in for about sixty seconds and let the herbs sink in.

Rinse
Over time your scalp feels clearer and your hair has room to grow.
See visibly thicker hair after 8 weeks.
Said their hair felt more healthier after the first week.
Said they would recommend Asta to their friends.
Why choose us?
| Our Bar | Others | |
|---|---|---|
| No sulfates | ||
| Full strength herbs | ||
| One minute scalp ritual | ||
| Plant based and vegan | ||
| Handmade in small batches | ||
| Visible results |
Frequently asked questions
Liquid shampoo is mostly water with detergents added. This bar skips the water entirely and puts concentrated, fermented herbs straight onto your scalp.
Most people notice less shedding within a few weeks, with visible baby hairs showing up around the two month mark for consistent users.
Yes, it works on the scalp rather than the hair itself, so it suits straight, wavy, curly or coily hair equally.
Yes, the herbs work on the scalp environment, not on hormones, so anyone dealing with thinning or shedding can use it.
You're covered by our 60 day guarantee. Reach out and we will refund you, no complicated process.
What our customers say
Based on 8,341 verified reviews

Finally something that works
After trying countless serums and supplements, this bar was the missing first step. My scalp feels completely different and my hairdresser noticed the difference.

The tingle is real
You can genuinely feel it working. 60 seconds of massage and my scalp feels awake for the first time in years.

Less shedding in 3 weeks
The amount of hair in my shower drain has dropped dramatically. I didn't believe it until I saw it myself.

My serums finally absorb
I've been using rosemary oil for a year with zero results. Two weeks with this bar first and suddenly everything works better. It really is the missing step.

Bought one for my husband too
We both use it now. His hairline looks noticeably fuller and my postpartum shedding calmed down completely.

Worth every penny
One bar lasted me almost two months. Cheaper than my old shampoo and it actually does something for my scalp.