Polygonum Shampoo Bar

Name: Polygonum Shampoo Bar
Brand: Seek Bamboo
SKU: Polygonum-Shampoo-Bar-1
Price: 13.60 USD
Availability: InStock

5.0

Rated 5.0 out of 5 stars

349 Reviews

Botanical Restore

Packed with restorative polygonum, this shampoo helps return gray hair to its natural hue while chemically-free.

Amino Acid Formula

Delivers deep hydration and flexibility to each strand—supporting strong, elastic hair from root to tip.

Silky Shea Nourishment

Rich in vitamins and fatty acids, shea butter deeply nourishes strands — restoring softness, smoothness, and manageability.

Olive Oil Renewal

Deeply hydrate hair with olive oil—nourishing every strand with softness, smoothness, and natural shine.

You can earn 14 points! Sign up

What It Is

A natural way to turn back the clock—on your hair. Our Polygonum Shampoo Bar harnesses the power of the ancient root, long prized for supporting vibrant, healthy-looking hair and enhancing natural color.

This bar is designed to gently cleanse while restoring shine, promoting hair vitality, and helping reduce the appearance of grays over time. No sulfates. No parabens. Just rich, herbal nourishment in a zero-waste form.

One bar replaces up to 3 plastic bottles. Timeless results, minimal impact.

WHY YOU’LL LOVE IT

✓ powered by polygonum root to enhance color, shine & hair vitality

✓ supports scalp health while helping reduce dullness & dryness

✓ amino acid–based formula for gentle, nutrient-rich cleansing

✓ free of sulfates, parabens, & plastic—just clean, conscious care

✓ each big bar lasts up to 75–90 washes (yep, really) — 3.2 oz

✓ light herbal scent without artificial fragrance

✓ travel-ready, TSA-friendly, & mess-free

✓ vegan, cruelty-free, & handmade with care

✓ ships 100% plastic-free, like everything we do

Polygonum Shampoo Bar

$13.60

$17.00

Featured Ingredients

pH balanced & safe for color-treated hair

5.0

Rated 5.0 out of 5 stars

Based on 349 reviews

100%would recommend this product

Reviews Summary

Customers say this shampoo bar creates rich, luxurious lather and leaves hair feeling clean and soft. Many reviews mention the bar's long-lasting nature and convenience for travel. Users appreciate its ability to add volume and shine to their hair. Common feedback includes the pleasant scent and ease of use. While some note varying experiences, most users report their hair feels thicker and more manageable after use.

Write a Review (Opens in a new window)

349 reviews

Sort

S
Shayne
I recommend this product
Hair Concerns Thinning
Product Standouts Increases Hair Growth, Strengthens, Moisturizes
Rated 5 out of 5 stars
1 month ago
Gentle, Effective, and So Refreshing
What really stood out to me was how calming and restorative this shampoo bar feels. Polygonum has such a rich history in traditional hair care, and this bar brings that herbal wisdom into a modern, zero-waste form. My hair feels soft and looks shinier than ever—plus I love that it's packed with clean, plant-based ingredients.
How did our hair care duo work for you? 💧Rated 2.0 on a scale of minus 2 to 2
Featured
Was this helpful?
R
Rey
I recommend this product
Hair Concerns Thinning
Product Standouts Increases Hair Growth, Repairs Damage, Moisturizes
Rated 5 out of 5 stars
1 month ago
My Hair Feels Revived!
I’ve been using the Polygonum shampoo bar for a few weeks now, and I can honestly say—my hair feels stronger and looks shinier than it has in years. I’d read about the benefits of Polygonum for hair health and was curious to try it out. This bar didn’t disappoint! It lathers beautifully, rinses clean, and leaves no residue.
What I love most is that it's made with plant-based ingredients, so I feel good about what I’m putting on my scalp. My hair used to feel dry and lifeless, but now it feels nourished from root to tip. I've even noticed less hair fall in the shower. Definitely a keeper in my routine!
How did our hair care duo work for you? 💧Rated 2.0 on a scale of minus 2 to 2
Featured
Was this helpful?
DF
Donna F.
Verified Buyer
I recommend this product
Hair Concerns Frizzy, Dry, Thinning
Product Standouts Natural Ingredients, Increases Hair Growth, Lathers Well, Boosts Shine
Rated 5 out of 5 stars
1 month ago
The Polygonum Shampoo Bar
I love this shampoo. My hair was showing signs of hair loss. I noticed renewed hair growth withing a mth. It has not alone as well changing the gray to its natural color, but the gray is definitely darker than it was. I've ordered again and will continue to use this shampoo. Oh! Did I mention it last a very long time!!!!
How did our hair care duo work for you? 💧Rated 2.0 on a scale of minus 2 to 2
Featured
Was this helpful?
TM
Thea M.
Verified Buyer
I recommend this product
Product Standouts Lathers Well
Rated 5 out of 5 stars
20 seconds ago
great shampoo!
I love these shampoo bars. It gets my hair squeaky clean from the first lather even when my hair is very dirty. Bars are easy to pack in suitcases and better quality shampoo than what most hotels provide. I haven't bought a bottle of shampoo in ages and the bars are wrapped in paper and cardboard which is less junk for the landfills I love how the subscriptions bring the shampoo to you. I haven't noticed much change in my gray, but I can deal with that given everything else the product provides.
How did our hair care duo work for you? 💧Rated 1.0 on a scale of minus 2 to 2
Was this helpful?
P
Paula
Verified Reviewer
I recommend this product
Hair Concerns Thinning
Product Standouts Increases Hair Growth, Strengthens, Conditions Well, Natural Ingredients
Rated 5 out of 5 stars
1 month ago
Traditional Herb Meets Modern Hair Care
I’ve always been into holistic remedies, so I was excited to try Polygonum in my hair care. This shampoo bar really delivers. It leaves my hair feeling strong, clean, and nourished—and it doesn’t strip away moisture like synthetic shampoos. Love that it’s all plant-based and travel-friendly too!
How did our hair care duo work for you? 💧Rated 2.0 on a scale of minus 2 to 2
Was this helpful?
A
Andrew
Verified Reviewer
I recommend this product
Hair Concerns Thinning
Product Standouts Increases Hair Growth, Boosts Shine, Moisturizes
Rated 5 out of 5 stars
1 month ago
My Hair Looks Revived
This shampoo bar is like a reset button for tired, thinning hair. The Polygonum seems to deeply condition the scalp while giving my hair that healthy, natural shine. I was worried a bar wouldn’t lather, but it foams up beautifully and rinses clean. No buildup, just softness.
How did our hair care duo work for you? 💧Rated 2.0 on a scale of minus 2 to 2
Was this helpful?
C
Carrie
Verified Reviewer
I recommend this product
Hair Concerns Weak
Product Standouts Lathers Well, Strengthens
Rated 5 out of 5 stars
1 month ago
Hair Feels Thicker and Healthier
I started using this Polygonum shampoo bar because I was curious about the traditional benefits of Polygonum multiflorum oil—and I’m so glad I did! My hair feels fuller, and there’s way less shedding when I brush. The fact that it's plant-based makes me feel confident I’m doing something good for both my hair and the planet.
How did our hair care duo work for you? 💧Rated 2.0 on a scale of minus 2 to 2
Was this helpful?
RG
Russell G.
Verified Buyer
I recommend this product
Rated 5 out of 5 stars
4 months ago
Polygonum Bar
Haven't seen any grey hair go away yet. And my wife hates the smell of the bar.
Was this helpful?
KW
Karla W.
Verified Buyer
I recommend this product
Rated 5 out of 5 stars
4 months ago
5 Stars
Polygonum Shampoo Bar
Was this helpful?
CA
Corrinne A.
Verified Buyer
I recommend this product
Rated 5 out of 5 stars
5 months ago
5 Stars
Easy to use, leaves hair clean and not heavy.
Was this helpful?

The Seek Bamboo Pledge: Not totally in love with your Seek Bamboo shampoo bar? Send it back our way – anytime, no questions asked! We stand behind our bars with a 100% satisfaction guarantee.

Turning Back Time, One Question at a Time!

Everything You Need to Know About Polygonum Shampoo Bar

What is a Polygonum shampoo bar?

Step aside, regular shampoos! Our Polygonum shampoo bar is the delightful fusion of ancient herbal wisdom with modern hair care. Packed with the goodness of natural Polygonum extracts, it's a top-tier treat for those luscious locks of yours.

How often should I use Polygonum shampoo to see results?

To be in the "gray-no-more" club, weave this shampoo bar into your routine 2-3 times a week. It's like setting a hair-date with nature thrice a week!

Are there any side effects to using a Polygonum shampoo bar?

Our Polygonum shampoo bar is all about bringing nature's goodness straight to your locks. We've ditched the harsh chemicals, but like with all products, individual experiences might differ. So, while our bar plays nice with most scalps, always listen to yours. Here's to nature-inspired, confident hair days!

Can I use other hair products alongside the Polygonum shampoo bar?

Sure thing! While our shampoo bar loves solo performances, it’s also a great team player. Just keep things naturally harmonious, and you're good to go!

How long does it take to see results with the Polygonum shampoo bar?

Consistency is key. Some users play spot-the-difference in just a few weeks, while others enjoy the suspense a tad longer. Just enjoy the process!

What are the benefits of Polygonum shampoo?

Beyond its gray-reversing prowess, Polygonum is like a spa retreat for your hair – think strength, resilience, and all-around glow-up!

Is Polygonum shampoo good for hair?

Absolutely! Consider it your hair's personal trainer – boosting strength, flexibility, and all that jazz.

Is Polygonum shampoo safe for color-treated hair?

Oh, it’s a color lover! It cuddles those dyed strands without stripping away their vibrant personality.

Have another question about our polygonum shampoo?Asks Us In Our Review Section Below

Take Our Shampoo Bar Quiz

Uncover the bar that speaks to your hair's specific needs, ensuring every wash is a step towards healthier, happier hair. It's simple, insightful, and tailored just for you.

Find YOUR Shampoo Bar