Plastic-free shampoo bars in my shower, from left to right: by Humankind, HiBAR, and 100 Senses' Ultimate Body Bar. All tested and reviewed here. ©KettiWilhelm2020

4 Great Shampoo Bar Reviews [A Low-Pressure Intro to Plastic-Free July]

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2022 Note: This was my very first sustainable product review! I’ve updated it with product changes, and I’ve since written many more reviews, including some that are relevant to this topic: These my new favorite shampoo & conditioner bars, and here’s a concentrated, plastic-free shampoo option, for if you just don’t like bars. Let me know in the comments if you have questions!

Does anyone else feel like they’d like to buy less stuff in wasteful plastic packaging, but have no idea where to start?

In the months leading up to Plastic-Free July this year, I started testing all kinds of plastic-free and eco-friendly products. I didn’t really know where to start, but let’s just say that with a degree in sustainability, the growing enthusiasm for the new month-long sustainability event made me feel more than a little bit behind.

So I started looking an easy first target: A product I wouldn’t mind changing anyway. Something wasteful that I could replace with something more sustainable (but still effective) that had no plastic packaging and no questionable ingredients.

Probably at the suggestion of a million targeted Instagram ads, I landed on shampoo bars to replace my random, unloved selection of drugstore shampoos.

But the bars had to actually make my hair look and feel good. They had to be enjoyable to use. I’d tried shampoo bars before, and always felt like I was giving something up to try to be good.

This time, no compromises.

Luckily, sustainable toiletries have come a long way from the patchouli-scented hippie soaps that were around a few years ago. So, as I happily discovered, “No Compromise” is actually possible now.

Plastic-free shampoo bars in my shower, from left to right: by Humankind, HiBAR, and 100 Senses' Ultimate Body Bar. All tested and reviewed here. ©KettiWilhelm2020
As you can hopefully tell from this rather terrible photo of my shower shelf, this is a real review! (Left to right – my original three: by Humankind, HiBAR and the Ultimate Body Bar.)

Plastic-free shampoo & conditioner bar brands in this review:

2021 UPDATE: After a year of testing these and other brands, I wrote another review of my new favorite shampoo bars, from The Earthling Co., and how they compare with HiBAR. Check out the review here!

2023 UPDATE: Want even more options? Here’s my latest review of Viori shampoo bars – the first brand that might actually be tied with Earthling, in my book.

None of these companies use animal testing, most of their products are vegan, and all ship in minimal, plastic-free packaging.

Also, none of these shampoo bars contain sodium lauryl sulfate (SLS), which is well known to cause skin irritation (although scientists don’t think it causes cancer or anything like that). SLS is a detergent ingredient that creates lather, and it’s in everything from shampoo and face wash to toothpaste and dish soap.

That’s why I didn’t test the popular brand Lush for this post – their shampoo bars do contain SLS. (And they’re about twice the price per ounce compared to the bars in this review.)

by Humankind

This very small New York-based company is 100% carbon-neutral, and they make the usuals for sustainable beauty – shampoo bars, conditioner bars, and body wash bars.

2022 Update: by Humankind is also now making liquid shampoo, conditioner and body wash in aluminum bottles with reusable pumps! I haven’t tried them yet, but it’s a similar concept to Everist’s concentrated shampoo and conditioner, which are also packaged in aluminum. (Check out my review of Everist here.)

They also make a few totally unique products in refillable packaging – like mouth wash in tablet form, which dissolves in a glass of water and comes in interesting flavors like ginger and cinnamon. It makes sense for travel because, if you use mouthwash, it’s one less liquid to carry. And at home, it means one less big plastic bottle to buy and throw away regularly.

But the one product I was most excited to try was their refillable deodorant:

by Humankind Refillable Deodorant:

It may be off topic, but I was too excited about this not to share it.

Here’s how it works: Your first order includes a refillable plastic deodorant tube. With every refill order, you slip a cardboard container of deodorant into the plastic carrier. It’s brilliant!

2021 UPDATE: I reviewed by Humankind’s deodorant in more detail, along with my refillable favorite from Bite, and the cardboard-packaged option PAPR. Check out the full review here! (And if you want to try Bite, use the code TILTEDMAP10 for 10% off!)

by Humankind Shampoo Bar Review:

This would probably be the best option if you’re looking for a volumizing shampoo bar for thinner hair. It leaves my long, thick hair feeling heavy, feeling extra thick, and not as smooth as the other bars I tried. So I farmed out some testing to my mom for a different perspective: It made her short, fine hair shiny, lifted and not flat.

What we both liked about this bar is that it lathers more easily than others I’ve tried. It doesn’t produce a rich foam, but it’s very easy to work with and takes no time at all to feel like you’ve got enough product from the bar to wash your hair. (Even for my mid-back length hair.)

The texture and scent were both what I’d expect from a more old-fashioned shampoo bar. (Dare I say first generation? You know, the homemade, hippie beauty products. So if that’s what you’re looking for, look no further.)

The scent is strong and lasting – at least the Lemongrass that I tried. It’s got that hippie-organic smell of the original natural beauty products. Don’t get me wrong, it’s a pleasant smell, but it’s not what I would call a modern scent.

It also leaves my hair with that squeaky clean feeling, which makes it hard to run my fingers through when rinsing (which the other bars didn’t). But if you use conditioner it probably wouldn’t be a problem. (by Humankind also makes a conditioner bar, which I liked much more than their shampoo, and but not as much as my favorite conditioner bars from Earthling Co.)

Plus, it’s the least expensive bar on this list, and every order gets free, carbon-neutral shipping.

by Humankind Scents:

by Humankind used to offer unscented options for all their products, but some have been disappearing from their site recently. Their shampoo and conditioner bars are still available in unscented.

UPDATE: by Humankind also makes hand sanitizer with a reusable pump that comes in grapefruit, eucalyptus or unscented! (And it made my Master List of favorite plastic-free products.) It’s in aluminum bottles (much easier to recycle than plastic). Like all their other products, if you already have the pump from a previous order, you just check the box for “no pump,” or better yet, order their larger refill bottles.

by Humankind Sustainability:

Everything is vegan and cruelty free. They do use palm oil, but it’s Fair Trade certified and RSPO certified.

Plus, the entire company is carbon neutral, from office space to shipping! They accomplish that by buying carbon offsets that support reforestation projects in Brazil and New Jersey. There’s more info on how it works, plus ingredient lists for all their products, on their FAQ page.

Shampoo Bar Price & Shipping:

The by Humankind shampoo and conditioner bars are $15 for 4 oz. (113 grams), which is $3.75 an ounce. But if you subscribe, they send you two bars at a time (which means less shipping waste) and everything is 10% off.

by Humankind provides free, carbon-neutral shipping for all orders! (Right now they only ship to the US, although they do say they plan to change that soon. I’ll update this when it happens. But as of October 2022, not yet.)

Shop by Humankind:

You can order by Humankind directly from their website. (by Humankind is not available on Amazon or through any other online retailers.)


This Minnesota-based company only does shampoo and conditioner bars – nothing else – but they do them well. They’re the only brand I tried that has options for different hair types: normal, moisturizing, volumizing, and sensitive.

HiBAR “Maintain” Shampoo Bar Review:

Their basic bar (called “Maintain”) was the first product I tried for this review, and I liked it much more than all the other shampoo bars I’ve tried in the past! It lathers easily, my hair feels clean, and it smells great.

Specifically, when I first took the bar out of the cardboard packaging, it smelled exactly like key lime pie. Which was fun, although I didn’t necessarily want my hair to smell like pie. But when it dries, it leaves almost no scent on my hair, and after a few days the super strong scent faded from the bar itself. Now I can only smell it when lathering up, and I still love the fresh, tropical pie scent.

A natural, outdoor photoshoot with HiBAR's green, plastic-free shampoo bar. ©KettiWilhelm2020
My mom said the HiBAR looked like a little tree, so I decided to photograph it in its natural environment.

Plus, this shampoo bar is lasting a long time. After two months, it’s nowhere near finished (and my husband is using it, too). And it holds its form well, without disintegrating while sitting in the shower. (Just like with any shampoo bar, make sure you store it in a place where it can drain in your shower, otherwise any bar will turn to mush.)

At the end of the day, I’d buy HiBAR again. (Although I didn’t buy this one. They were kind enough to send me a free bar to test for this article – thanks HiBAR! That’s Minnesota for ya.)

HiBAR Scents:

HiBAR now offers an unscented version of their Moisturize bars. Otherwise, all of their bars have the same lime-y citrus scent, which I really love.


Made in Minnesota, USA. No animal testing, and the Moisturize and Volumize HiBARs are vegan, but the Soothe and Maintain bars contain “trace amounts of honey.”

HiBAR Price & Shipping:

Although it seems like the cheapest option here, HiBAR is actually the most expensive per ounce of the shampoo bars I tested – but the difference is tiny, especially considering how long it’s lasting. These relatively small bars go a long way.

When you order directly through HiBAR, the shampoo bars are $14 for 3.2 oz (91 grams), which is $4.38 per ounce. The conditioner bars are the same price, just ever so slightly smaller. (And Earth Hero has a better price, even before taking 10% off with the code tiltedmap10.)

HiBAR offers free shipping on orders over $20 in the US. Subscribing for automatic delivery gets you just a slight discount (5% off) but you still pay $3 for US shipping if you just order one bar at a time. (If you subscribe for both shampoo and conditioner, shipping is free. Or just order two at a time, stock up, and reduce emissions and packaging from shipping!)

HiBAR does ship outside the US! But of course, it isn’t cheap. I put in my old address in Italy and the website calculated $13 for shipping. Even random addresses in Canada were about the same.

Shop HiBAR:

Order directly through the HiBAR website, or from HiBAR’s Amazon storefront, where the products will still be shipped directly from HiBAR. This matters, because it means it’ll still be plastic-free packaging. Avoid random resellers on Amazon, as the packaging will likely be plastic!

Or order HiBAR (or anything else) from Earth Hero, and use the discount code tiltedmap10 for 10% off your order!

100 Senses’ Ultimate Body Bar

This LA-based company has a pretty different aesthetic than the others on this list: Less about being eco-friendly and plastic-free, and more about a bougie, indulge-your-senses-in-a-marble-bathtub-overlooking-a-pine-forest kind of vibe. A little too fluffy for my taste.

Their body wash + shampoo combo bar comes in minimal, plastic-free packaging, but all their other products are in plastic packaging.

Still, I decided to try to the bar anyway, because it had overwhelmingly good reviews, and because, originally, my whole idea was to test and review all the eco-friendly beauty products that advertised to me on Instagram. And this was certainly one of them.

Ultimate Body Bar Review:

I must admit, I actually really like this one. It lathers intensely – definitely the foamiest, most luxurious feeling bar I’ve tried. And I think it leaves my hair shinier and smoother than any other bar, without even using conditioner.

It doesn’t seem like it’ll last as long as the HiBAR, but that could be because I’m using it for everything – hair, body, shaving my legs, even washing my face.

I’m normally very particular about what I use on my face (it’s taken me years to figure out products that work to keep me from breaking out). But some of those glowing reviews I read said people were using the Ultimate Body Bar as a face wash, so decided to give it a shot. Of course, what works on sensitive skin will be different for everyone, but it’s been working wonderfully for me!

Overall, I’m impressed with this multi-purpose bar. I’m going to keep ordering it, especially to use for travel – since I can replace multiple liquid products with one bar. It’s also great for when you’re in a hurry – one product for your entire shower.

Ultimate Body Bar Scents:

I’ve tried all three scents, and they’re all great. (Seriously. I’m very picky about scents, and always think a lot of products have cheap smelling perfume, or are too strong or too sweet. But this is an area where 100 Senses really stands out.)

My first love was the Wild Lavender scent. It’s subtle and fresh and modern – not sweet at all. My husband likes it, too.

Then I tried the Citrus Neroli, which is fruity and energetic and I like it maybe even more than the lavender. To me, it smells almost exactly like this fancy Byredo perfume, which I haven’t yet treated myself to, but I’ve been eyeing for quite a while.

Finally, the Green Tea scent – when I took it out of the box, I was afraid I’d hate it. It’s very natural and earthy. But I started using it and I actually like it. It’s not overpowering. It’s light and just surprisingly pleasant. (And if you’re looking for the most “manly” option, this is it, although all of their scents are designed to be gender-neutral, and none of them leave a strong scent on the skin or hair.)

And 100 Senses also makes an unscented bar. I have a family member who is extremely sensitive and allergic to any kind scent or perfume, including natural oils, and she said it doesn’t bother her at all.

100 Senses Sustainability:

Everything from 100 Senses is made in California. The scents are plant-based, and their bars are plastic-free, vegan and “100% cruelty free.” So they don’t use any animal-derived ingredients or animal testing (and they contribute to animal welfare causes).

100 Senses Price & Shipping:

At $26 per bar, this one has sticker shock to go along with its boogie marketing vibe. But by weight, these are actually less expensive than most of the other shampoo bars. (The bar is 6.5 oz, or 184 grams, so it’s $4 per ounce plus shipping.)

If you subscribe, you get 10% off and free shipping. That brings it down to $3.60 per ounce. (You can set the delivery frequency anywhere from every month to every six months, and can change it anytime. It’s one of the more flexible subscription services I’ve seen.)

Otherwise, without subscribing, there’s free shipping on $50 orders. (They only ship to the US.)

Or, this link gives you $15 off a $50 one-time order (you can’t use it on a subscription order).

It’s not an affiliate link, so I don’t make any money from it, but it’s a “refer a friend” deal. (Which means if enough people order through that link, I eventually get a free bar! It doesn’t pay the rent, but hey, I’ve gotta wash my hair, too.)

Shop 100 Senses:

These bars are not on Amazon. Order directly through the 100 Senses website here (link gets you $15 off a $50 order).

Three zero-waste shampoo bars that I tested for this review of sustainable beauty products: HiBAR, 100 Senses, and by Humankind. ©KettiWilhelm2020
Shampoo bars with a prettier background than inside my shower. (That’s 100 Senses’ Wild Lavender bar in front.)


Long WKND is another good company with legit sustainability credentials. It was founded by two women in Canada who wanted to make plastic-free, cruelty-free toiletries.

At the time, Long WKND was originally called Habitat Botanicals, and used to make all their products by hand. But they recently became part of Pela (the company behind the Pela Case compostable phone cases, and sustainable sunglasses), and moved their operation to Austin, Texas, in the summer of 2022.

This is definitely not bad news, as acquisitions go, because Pela is a certified B-Corp, is climate neutral, and is a member of 1% For The Planet. (Which are three great certifications – I love to support companies that put in the effort to live up to those high standards.)

Long WKND Shampoo & Conditioner Bars Review

However… even though I love Long WKND’s sustainability credentials, I wasn’t a big fan of their shampoo or conditioner bars.

Their shampoo bar did leave my hair shiny and soft, but it produced more of a slime than a real lather.

And it turned almost mushy in my shower and started to break apart after using it for only a couple weeks. (Even though I stored it in the same conditions as the other bars – on a well drained soap dish.)

Their conditioner bar had the opposite problem – it stayed hard as a rock no matter how long I tried to make it lather (both rubbing it between my hands, and directly into my hair). It hardly gave off anything conditioning and felt like it didn’t transfer any product to my hair.

Other Products from Long WKND

I do like their plastic-free lip balm, which is packaged in cardboard. And I’m curious about their deodorant (also in cardboard), but I’m so happy with my refillable deodorant from Bite that I’m just going to stick with that.


One unique thing about these bars is that Long WKND says they’re biodegradable and compostable, and therefore safe to use in river and lakes – which could make this a good shampoo option for camping.

Also, all Long WKND products are plastic-free, zero-waste and vegan, and the company is cruelty-free.

Price & Shipping

Their shampoo and conditioner bars are normally $14 each (for 3-ounce bars), but subscribing gets you 10% off.

I just don’t love that the only subscription option is monthly deliveries. (I’d prefer if they gave the option to send more bars, less often, to reduce emissions from shipping so many packages.)

Shop Long WKND

Shop directly through the Long WKND website.

Alternative (and Non-US) Shampoo Bar Brands

The brands I originally tested for this post are mostly US-based (except Long WKND, formerly Habitat Botanicals, was Canadian), and only HiBAR ships abroad.

Surprisingly, I haven’t had much luck with European shampoo bar brands – at least not the ones that are available in natural shops in Italy and France (the two places I’ve lived in Europe since I began this transition to sustainable products).

So if you live outside the US, or are traveling and run out of your bar, here are a couple of good places to start:

So far, my favorite shampoo bars that I’ve found widely available in Europe are from the French brand Lamazuma, and they’re also available on Amazon. Their shampoo bar for normal hair is roughly comparable to HiBAR’s Moisturize bar, but it doesn’t last as long.

Ethique is a New Zealand-based brand of vegan, plastic-free and carbon-neutral shampoo bars and other beauty products that meet really great sustainability standards. Ethique ships widely and are also available on Amazon.

And The Earthling Co. is now my overall favorite, as I wrote in another review!

Shampoo Bar Price Comparison Chart:

by HumankindHiBAR100 Senses
Price$15 for 4 oz bar
(113 g)
$14 for 3.2 oz bar
(91 g)
$26 for 6.5 oz bar
(184 g)
with subscription
Subscription Frequency*Every 8 weeksEvery 30, 45 or 60 daysEvery 1, 2, 3, 4, 5 or 6 months
ShippingAlways free
(ships to US only)
Free over $20
(ships abroad & available on Amazon)
Free over $50 or with subscription (ships to US only)
Back up to my Reviewby Humankind ReviewHiBAR ReviewUltimate Body Bar Review
*All three companies let you delay or cancel any individual subscription order; these are just the baseline options they give.
Did I leave anything out? Anything else you’d like to know about any of these products or about plastic-free shopping? Leave it in the comments!

Looking for more about sustainable products? Check out these reviews:

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  1. Thank you for these thorough reviews. I just started with Earthling bars which also come SLS free. They are similar in price point and seem like a good one to include for comparison-I’d like to know how you view them.

    1. Hi Jacqueline,

      You’re welcome! Thanks for the suggestion. I’m actually planning to update this post soon with a few more brands that readers have mentioned, so I’ll add Earthling to the list. If you have any other products in mind, let me know!

      Thanks for your comment and keep in touch!


    2. Hey Jacqueline,

      I just wanted to let you know that your comment inspired me to try Earthling bars – and they’ve actually become my new favorites! I just wrote a whole new review post about them, and I have a discount code you can use (tiltedmap15 for 15% off).

      Thanks again for suggesting them – and please, keep the ideas coming! 🙂


  2. I recommend checking out J.R. Liggett’s shampoo bars. They’re half the price of the other ones here, and the ingredients seem simpler (three vegetable oils). When I heard about shampoo bars as an alternative to liquid shampoo, as luck would have it, they were the first ones I stumbled upon in a local store. I’ve been really happy with them, so didn’t end up trying any others. I like that they’re simple, natural, inexpensive, and do the job. For travel, I just cut off a smaller bit for my toiletry bag. Love not having to carry a bottle with me. Thanks for the helpful reviews!

    1. Hi Michael,

      You’re welcome! I’ve tried other shampoo bars with the same ingredients as J.R. Liggett’s, and they just left my hair heavy, dry and dull. (I looked it up – they contain saponified olive oil, coconut oil, and castor oil.) Long hair could be a factor, but I haven’t read good things about vegetable-oil based shampoo bars. But hey, if it they work for you, great!

      Thanks for your comment!

  3. Yes, when I looked into shampoo bars a bit initially, I did find mixed reviews for Liggett, and for all of the brands I found, really. I’m sure it depends a lot on hair type and personal preference. For me they work well, but seems like everyone just has to experiment to find something that works for them individually!

  4. Hi, Ketty,

    I looked some of your recommending online shops.
    Each shop were interesting as some of them are not just ordinary shops but trying to be eco-friendly by their various way and what they think it’d be better as an idea to be so.

    If I go to the USA, I am thinking to try the new lipsticks of because it contained not any mineral oil and it has been made of organic products.

    Thank you for your introducing:)


    1. Hi Ayumi,

      Happy to help! I definitely try to only suggest eco-friendly shopping options, and mineral oil is one ingredient that’s left out of pretty much everything I recommend, including Earthling Co products. (And I believe they also ship to Japan, in case you want to try them before you come here!)

      Have a good day!

  5. Dear Ketty,

    Thank you for your comment.
    Ok I will try by chance:).
    I understand you really know various people’s life style and they must be try eco by their own styles also by cosmetics:) .
    But actually, I still like also fancy cosmetics, too and it’s often not so eco. I maybe consume both….
    But I think people try to be eco about their life is really nice:).

    Have a good day:)

    1. Hi Ayumi,
      I completely understand what you’re saying! It’s okay to still buy fancy cosmetics sometimes if that’s something that brings you joy (my Marie Kondo side coming out 🙂 ). It’s just about being aware of the impact and trying to improve it where you can, while still enjoying your life.

      Have a good one!