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Organic Shampoo Bar 4oz

Organic Shampoo Bar 4oz

Regular price $8.50 USD
Regular price Sale price $8.50 USD
Sale Sold out
Shipping calculated at checkout.

We sell for $8.50 | Retails for: 9.00

We have a 30 day satisfaction guarantee. If for whatever reason you don't like your product, let us know, and get a full refund.

This natural shampoo bar soap is chock full of nutrients that gently and thoroughly cleanses your hair. Full of protective ingredients like coconut oil, oat aminos, and vitamin b5, this bar will leave your hair feeling soft and healthy.

From natural to curly to wavy to straight, it's been tested and suited for all hair types.

100% Natural | Fragrance Free | Cruelty Free | Vegan

  • Carbon-neutral shipping made possible by tree planting initiatives.

  • Packaged and shipped with post-consumer recycled content.

  • Our skin is the largest organ and absorbs everything we put onto it absorbs into it. This soap is free of artificial fragrances, colors, or any of the toxins that are poor for your skin.

Butter + Lye also plants trees through reforestation partnerships and regularly donates soaps to homeless shelters.

Protect Your Skin

Your skin is the largest organ in your body and absorbs what you put into it. Although we don’t often think about it, many hair washes frequently use harsh ingredients such as:

Chemical Fragrances: 
Across multiple research studies, chemicals fragrances have been classified as allergens, hormone disruptors, asthma triggers, neurotoxins & carcinogens.

 Ammonium Chloride & Methylisothiazolinone:
Has been linked to various skin related issues, plus organ and lung toxicity.

Disrupts hormones in the body, harms fertility and reproductive organs, and increases the risk of cancer. Small traces can also kill coral when they enter our oceans.

linked to asthma, ADHD, breast cancer, obesity and type II diabetes, neurodevelopmental issues, behavioral issues, autism spectrum disorders, altered reproductive development, and male fertility issues.

Triclosan is a chemical antibacterial agent which may cause hormone disruptions, leading to cancer fetal development.

Type of detergent that is highly toxic to marine life when it enters our oceans.



Organic Sunflower Oil (sourced from a small local supplier), Organic Coconut Oil, Organic Castor Oil, Sodium Hydroxide*, Oat Aminos, Vitamin B5, Organic Jojoba Oil, Organic Avocado Oil, Rosemary Extract

*none remains in final product

Sunflower Oil: high in essential fatty acids, antioxidants, and vitamin E, making it deeply nourishing and soothing to dry hair and scalps. It locks in moisture and helps keeps hair healthy and strong

Coconut Oil: an excellent moisturizer for your hair. It helps to strengthen hair, nourish the scalp, and reduce oil buildup.

Castor Oil: a fatty acid that provides essential proteins and nutrients to hair follicles. It increases gloss or shine of the hair while increasing the hair shafts flexibility. It also provides antimicrobial properties and promotes hair growth.

Jojoba Oil: Mimics hair sebum to restore proper moisture balance to the hair and scalp.

Vitamin B5: Conditions hair to improve strength and elasticity.

Oat Aminos: Repairs hair by filling and smoothing the cuticles.

Avocado oil: Enhances penetration into the second layer of your skin (the dermis) and has a deeply moisturizing effect on the scalp, which in turns helps with soothing the scalp and eliminating dandruff. Avocado oil also contains Vitamin E, which can reverse and heal damage done by the su.

Rosemary extract: Rosemary extract performs like minoxidil, a common hair growth treatment, but with no scalp itching as a side effect.

Note: When you first start using a natural solid shampoo, your hair may feel different from usual. Don’t panic, this is just your hair adjusting and rebalancing oil production.

About The Brand

Butter and Lye is an eco-friendly company based in Brooklyn, New York that delivers high-quality natural soap while ensuring environmentally friendly business practices. The founder is actually a biochemist that used her years of experience in chemistry and the human body to create healthy soaps for the environment and for people.

The Environmental Problem

552,000,000 plastic SHAMPOO bottles are made and thrown away every single year. These bottles all now exist on the earth somewhere, or have been burned.

Some other reasons we love bar soaps so much is that:

Most liquid soaps are 75-85% water with just a bit of concentrate. This means that when we’re purchasing hair wash, we're practically just buying water, all wrapped up in heavy plastic and transported hundreds of miles.
On average, the production of liquid soap requires 5x times more energy for raw material, has a 10x bigger carbon footprint, and uses almost 20x more energy for packaging production than traditional bar soaps.

liquid soap contributes to much more ecotoxicity, ozone depletion, and eutrophication potential than bar soaps.

Our bar soaps aren't petroleum-based, which is common for liquid soaps.

Most liquid soaps contain palm-oil. Palm oil is one of the major drivers of deforestation, destroying some of the worlds most diverse forests, and destroying the habitat of several already endangered species.

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Customer Reviews

Based on 18 reviews

It’s definitely different but it’s not bad. I’m able to have a longer time span in between washes without my hair getting greasy or oily looking and the price is amazing compared to competitors

Grace House
Kind of ruined my hair :(

I was really hoping that this would be a great cheaper bar shampoo so I wouldn’t have to spend as much money to help the environment, but the shampoo dried my hair out way more than any shampoo i’ve ever tried. I really tried to get it to work with my hair but after a couple weeks I just had to give up and buy another shampoo from the store to fix what it did to my hair.

Hi Grace, I know I emailed you already but I wanted to respond here too! I'm again really sorry about your experience with our shampoo bar. We have been testing other suppliers to make sure we get the best ones for you guys. But I hope you enjoy your offer for a full refund and a new product when we get our hands on it :)


Way better than liquid shampoo


Cleansing without stripping

Made my hair sticky :(

I tried the shampoo for about 3 weeks now Bcs I didn’t wanna give up on it, but I tried everything, using less, staying in the shower longer, really scrubbing my hair, but it leaves a kinda sticky film on my hair. I have very fine hair, so maybe not for my hair type? Kinda feels like hotel shampoo that makes it hard to run fingers through my hair. The conditioning bar helps with that definitely just maybe not for me. If it works for your hair type it will definitely last a long time there is so much product in that little bar!