A Wise Guide to More Sustainable Conditioner

Updated on
January 31, 2025
What is the most eco-friendly conditioner?

Products can’t actually be “eco-friendly” because all products rely on the extraction of natural resources and there is no way to guarantee that no harm has been done to those ecosystems as a result. Products can be more or less harmful to the environment, but never completely without impact. 

Is there a biodegradable conditioner?
What conditioner should I use for healthy hair?

Healthy is subjective – and everyone’s hair needs different things! However, for planetary health, look for products without sulfates, phosphates, and synthetic fragrances.

The hair conditioner market was valued at a whopping $8.5 billion in 2019. This is no surprise considering that conditioners are everyone’s best friend. They keep our hair lush and moisturized, sometimes even giving us more body or curls. However, not all conditioners are created equal and some are certainly not our, or the planet’s, best friend. Let’s take a look at shampoo’s softer sibling and learn what to keep an eye out for when locking in moisture in the shower. 

What to Be Wise On: 

Conditioner is a must when it comes to having luscious locks, but some common conditioner ingredients can take us from luscious to lackluster. When looking for conditioners, avoid ingredients like phosphates and sulfates – both can cause harm to aquatic life. 

TLDR

Here are some of our favorite conditioners based on ingredients and certifications. 

Ingredients

Sulfates 

Sulfates are a kind of surfactant, which is used to clean and create the foam we know and love. Different surfactants are used in different ratios for different hair types, and each has either a hair conditioning or cleansing quality. Unfortunately, sulfates can also cause irritation and roughness, which is not what we want for our sensitive scalps. When we use a conditioner that contains sulfates, we’re potentially causing that irritation and some unintended consequences on marine life. No, thanks!

Phosphates

Phosphates, like trisodium phosphate, are ingredients that create that luscious lathering effect in our conditioners. Phosphates can also cause eutrophication, which is the mineral over-enrichment of bodies of water. This can be a natural process that develops aquatic ecosystems, but it can also be an indication of nutrient imbalances as a result of pollution. While it might sound beautiful, algal bloom – a result of eutrophication – can be harmful to aquatic life and can contaminate drinking sources. 

Synthetic Fragrances

Certain conditioners contain synthetic fragrances. The manufacturing of synthetic fragrances uses significant amounts of water and creates wastewater pollution that can be harmful to fish and other aquatic plants and wildlife. And, some synthetic fragrances are made from byproducts of the petroleum industry…cough, cough, fossil fuels. 

Certifications

Here are some certifications to look for when shopping this category.

Leaping Bunny

Leaping Bunny is an internationally recognized symbol that guarantees no new animal tests were conducted on any of the ingredients in a product. It’s the most stringent animal rights standard, so prioritize this one if you want to alleviate your animal welfare concerns.

PETA Cruelty Free

PETA’s Cruelty-Free offers a searchable database of companies and denotes whether they conduct, commission, or test their products on animals.

Fair Trade Certified

The Fair Trade certification ​​works on the ground with suppliers to ensure that people making FTC products work in safe conditions, protect the environment, and earn additional money to empower their communities. This certification has intersectional impacts, including an emphasis on safe working conditions, environmental protection, sustainable livelihoods, and Community Development Funds. If you want to rest easier knowing your sheets aren’t causing undue harm in their supply chain, get ones that are Fair Trade Certified.

EWG Verified

The Environmental Working Group has created a database that aims to be the gold standard in rating personal care products based on their ingredients, ensuring products are free from the chemicals of concern to human health that are outlined in their unacceptable list. Look for the EWG logo to make sure you’re avoiding those pesky ingredients.

EVERYDAY SHINE Conditioner Bar

Vitamin-rich bar that's nourishing and leaves you with smooth, silky locks

Moisturize Conditioner Bar

This one takes a little longer to suds up, but the wait is worth it.

Custom Conditioner

This color-safe conditioner is tailored to your needs, and free of all the bad stuff

Untangled Conditioner

Sienna Naturals is a black-owned business and Cosmopolitan 2023 winner of the Holy Grail Beauty Award

Conditioner Bar for Moisture

This bar is known for detangling abilities and silky condition

Super Bloom Strengthening Conditioner

This super sudsy, strengthening shampoo bar cleaness and fortifies hair without the plastic waste. It's color-safe for dyed hair and made without parabens

Find out which What To Know About Conditioner are better than the rest.

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