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4.7/5

- 900 Reviews

One Stick. No Conditioner. Your Best Hair.

120+ washes of shampoo and conditioner in one solid bar. 7 natural ingredients. Patented smart beeswax shell. Replaces 3–4 plastic bottles — 100% plastic-free.

Coconut Hinoki
Best Seller
Coconut - Cypress - Vanilla
Our most-popular, universal, stronger scent. Best for: most hair types.

Most Popular

Best Value

Most Popular

Best Value

One-time purchase

Subscribe & Save 20%

30 days risk-free

30 days risk-free

30 days risk-free

💰 30 Day Guarantee

🇺🇸 Made in USA

🚀 Ships Next Day

Smart Beeswax Shell

Engineered to Last

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Lasts 120+ Washes

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USA Produced

Snow-covered mountain peak with clear blue sky background.

Enhanced Grip

No Mess or Mush

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Patent Pending

Stays solid. Never mushy or slippery. Wears down like a deodorant stick from first wash to last. Lasts 250% longer than shampoo bars.

Our Lipid-Retention formula seals moisture during the wash — one step and done. No conditioner needed.

87%

of Users

stopped using conditioner by the end of week 2 and report softer healthier hair.

29¢

Per Wash

shampoo + conditioner last about 3 months and cost $20 each ($0.65/wash). Users save $100 a year with Stem.

4.7

★★★★★

across 860+ reviews Curly, straight, fine, thick, color-treated, Stem does it all.

Three phases. One wash.
No conditioner.

87% of Users Stop Using Conditioner by the End Of Week 2

Phase #1

Selective Cleaning

Most shampoos are blunt instruments, stripping away dirt and essential oils alike. Stem’s Lipid-Retention™ technology cleans with engineered precision. It targets buildup while preserving your hair’s protective lipid layer, leaving the cuticle smooth and the moisture barrier intact.

By keeping the cuticle sealed naturally, we eliminate the need for heavy conditioners to smooth it back down later.

Phase #2

Hydrated, Not Coated

Traditional conditioners mask damage with synthetic films that eventually block moisture. Stem hydrates from within. Because Phase #1 preserved your cuticle, bio-active cocoa butter locks hydration inside the strand, leaving you with weightless, residue-free softness.

Because there is no film blocking the surface, your hair is now primed to absorb vital nutrients in the final step.

Phase #3

Bio-Available Repair

You can’t feed hair that is suffocating under silicone. Because Stem leaves strands uncoated and breathable, our restorative proteins and nutrients are finally able to penetrate the cortex. They fill structural gaps to rebuild density and elasticity from the inside out.


Stem isn't a cosmetic mask. It is a health treatment that makes hair stronger with every wash.

Fewer Ingredients. Higher Standards. Better Hair.

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Rated "Excellent" by Yuka

Top 5% of hair care products.

A+ on EWG Skin Deep

Every ingredient rated safe. Zero red flags.

Made in San Diego not Overseas

Our facility. Our formulas. Our machines.

From skeptics to superfans

80% five-star. Over 50,000 Sold in 2025. Here's what convinced them.

One stick replaces everything.

Less clutter. Less plastic. Less money. Better hair.

1 STEM

0% Water

7 Ingredients

100% Natural Materials

Biodegrades in 180 Days

~$0.22/Wash

4 BOTTLES

90% Water

15+ Ingredients

Synthetic Compounds

Degrades 450 Years

~$0.54/Wash

Frequently Asked Questions

Don't see yours? Ask us anything — a real person on our team will get back to you within 24 hours.

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Customer Reviews

Based on 630 reviews
83%
(522)
13%
(82)
3%
(20)
1%
(4)
0%
(2)
J
Jennifer H. (United States)
Clear / Clear
Hair Length: Medium
Hair Type: Curly
Hair Texture: Medium
Great product

Best shampoo bar.

S
Scott Robertson (United States)
Santal Oak / Santal Oak
Hair Length: Medium
Hair Texture: Fine
Best shampoo bar I have used

I have only see the sample sized shampoo bar a few times and I can already tell it works better than my expensive bottles of shampoo and conditioner. I have used other shampoo bars and they worked ok but always ran out really fast and would get mushy towards the end. I like everything about this one. It takes up less space in the shower, easier to pack when I travel, smells great, and more importantly it works great on my hair. I will definitely be ordering my more when my sample starts to get lower.

B
Beverly Turk (United States)
Coconut Hinoki
Hair Length: Short
Hair Type: Straight
Hair Texture: Fine
First three. Times with new shampoo

I was interested to try this shampoo as a friend recommended it. She is in 70’s like me with fine hair that has been thinning. My hair is in a short pixie cut and generally needs to be shampooed daily and often looks flat by evening. This shampoo lathers well, has a mild scent and rinses easily. I don’t use conditioner and just blew it dry. It has held up well and still looks good after wearing a hat. I’m interested to see if I get new hair growth as my hair used to be much fuller and thicker.
So far so good, right now I’ll be ordering more product. I am using the shampoo for grey or blonde shampoo, I’m still mostly blonde.

S
Stephanie Mcguckin (United States)
Coconut Hinoki / Santal Oak
Hair Length: Long
Hair Type: Straight
Hair Texture: Thick
Great product

I bought the sample size I’ve used it 3 times since I got it . It’s amazing my hair tangles very quickly but it’s so easy to untangle and the shampoo smells amazing rinses quickly and leaves my hair soft I’m definitely buying more

D
D Cohen (United States)
Clear / Clear
Hair Length: Short
Hair Type: Wavy
Hair Texture: Fine
Great Clean Product

Both the clear body and hair are easy to use and provide a lot of suds. They last long and wash off easily.

L
Lori Carney (United States)
Hair Length: Medium
Hair Type: Straight
Hair Texture: Fine
Doesn’t Feel Like My Hair

Amazing product! I was skeptical but after just 3 uses, my hair is soft, smooth and shiny. No conditioner needed. My hairspray’s clean so much longer too! Will definitely keep using this. I’m 63 yrs old and it’s the first time in my life that my hair feels this good!

K
Kimball Coffin (United States)
Aloe Tea Tree
Hair Length: Long
Hair Type: Wavy
Hair Texture: Fine
Best hair product I've ever used.

Hair feels great, lasts forever, healthy ingredients. Literally no downsides. Price isn't an issue based on how long it lasts.

R
Rina (United States)
Hair Length: Long
Hair Type: Wavy
Hair Texture: Thick
Holy Moly!

My hair and my daughters hair is very picky,thick, and both are different styles. Her hair is more straight and mine is loose curls/wavy. She loves the coconut and I love the Santal Oak. We do not use conditioner anymore and I haven't bought regular brand soap anymore. We got the variety sample packs and are still using them months later.

2
2 Dog Dads (United States)
Hair Length: Short
Hair Type: Straight
Hair Texture: Thick
Best Shampoo Bars

We have tried many shampoo bars wanting to decrease our single use plastic consumption. However they have all left hair and scalp dry - until we found Swell Labs. Only made the switch a week ago and the difference is amazing, Love how they lather up and how they are packages for daily use and travel.

S
Stephanie (United States)
Hair Length: Long
Hair Type: Wavy
Hair Texture: Thick
After one wash my hair feels heathier

This stuff is amazing. It lathers great (I wash section by section) and leaves my hair feeling oh so clean!

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San Diego, CA 92109