Personal Care · Review

The Earthling Co. Shampoo & Conditioner Bar Set

A plastic-free shampoo and conditioner bar set that uses gentle surfactants, not soap, so it lathers, rinses clean, and skips the waxy transition that gives bar shampoo a bad name.

🌿 Ecoxee decision: One of the easiest shampoo bars to switch to.

Because these are pH-balanced surfactant bars rather than soap, they behave like bottled shampoo: quick lather, clean rinse, no greasy adjustment phase. A genuinely low-fuss way to drop the plastic bottles.

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The Earthling Co. Shampoo & Conditioner Bar Set

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Best for

Replacing plastic shampoo & conditioner bottlesAnyone burned by soap-based bars beforeAll hair types, including curly and colour-treatedA shampoo-plus-conditioner pairTravel

Not ideal for

People who already use a bar they likeAnyone expecting literal hair regrowthThose who want the cheapest optionAnyone who will not store it to dry

Before you buy: do you actually need this?

Worth buying if…

You buy shampoo and conditioner in plastic bottles
You want a bar that behaves like bottled shampoo
You tried a soap bar and hated the waxiness
You will keep the bar on a draining dish

Probably skip it if…

You already use a shampoo bar you like
You are chasing a specific medical hair treatment
You want the lowest price per wash

The most sustainable option is often the one you already own.

Overview

A shampoo bar replaces two or three plastic bottles and ships without any water weight, so it is a high-value plastic swap. The reason so many people bounce off bars is the waxy, greasy transition, but that is a problem with soap-based bars reacting with hard water.

The Earthling Co. set sidesteps it entirely. These are surfactant bars (using Sodium Cocoyl Isethionate), not soap, and they are pH-balanced, so they lather like normal shampoo, rinse clean, and skip the waxy phase, which is exactly what our shampoo-bar guide recommends looking for. They are sulfate-, paraben- and silicone-free, vegan, and made in the USA, with a matching conditioner bar and plastic-free packaging.

One honest note: the hair-growth marketing is optimistic. A good shampoo can support healthy hair, but it will not regrow it, so judge these as an excellent plastic-free cleanser rather than a treatment. And like any bar, they only last if they dry between uses.

What we like

Surfactant, not soap, so no waxy transition
A shampoo and conditioner pair
Sulfate-, paraben- and silicone-free
pH-balanced and gentle for all hair types
Plastic-free, made in the USA, vegan

Worth knowing

The hair-growth claim is marketing, not proven regrowth
Costs more upfront than a bottle
Needs a draining dish to last
Conditioner bars take practice to apply
A short one-to-two-wash adjustment for some

The honest trade-offs

The nuance most reviews leave out.

These are surfactant bars, which is why they work so well, but that also means they are not the just-soap purist option; the trade is far better performance.
A bar replaces several plastic bottles over its life, a real cut in plastic, though it costs more per unit upfront.
The hair-growth framing is optimistic marketing; judge it as an excellent plastic-free cleanser, not a treatment.
Like any bar, it only lasts if it dries between uses.

Sustainability breakdown

Our honest read on how eco-friendly this really is. Where we cannot verify something, we say so rather than guess.

MaterialsGood

Surfactant-based (Sodium Cocoyl Isethionate), soap-, sulfate- and silicone-free, and vegan.

Expected lifespanExcellent

Each bar lasts 3+ months, replacing several plastic bottles.

End of lifeGood

The bars wash away in use; the packaging is plastic-free and compostable.

PackagingExcellent

Plastic-free, compostable box and paper wrap.

Brand transparencyGood

The Earthling Co. is clear about its sulfate-free, soap-free, US-made formula.

If you don't buy it

If you already use a shampoo bar that suits you, there is no reason to switch. Buy this set if you are still on bottled shampoo and conditioner, especially if a soap-based bar once left your hair waxy, and want a plastic-free pair that behaves like the real thing.

The Ecoxee verdict

The Earthling Co. set is about the easiest shampoo bar to switch to, precisely because it is not soap: it is a pH-balanced surfactant bar, so it lathers like bottled shampoo, rinses clean, and skips the greasy transition that puts people off bars in the first place. Sulfate-free, vegan, plastic-free and made in the USA, with a matching conditioner bar, it is a genuinely low-fuss way to retire your plastic bottles. Take the hair-growth claims with a pinch of salt, keep it on a draining dish, and you will wonder why you waited.

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