Bath

Volumizing Conditioner Bar — Solid Conditioner for Thinning, Fine Hair

Name: Volumizing Conditioner Bar — Solid Conditioner for Thinning, Fine Hair
Brand: The Earthling Co.
Rating: 4.7 (9 reviews)

4.7 9 reviews 2 min read Updated 12 October 2026

Star rating

4.7/ 5

Customer reviews

Published on this page

5 stars 7
4 stars 1
3 stars 1
2 stars 0
1 star 0

Brand

The Earthling Co.

Product description

What you get: a single solid volumizing conditioner bar packaged in minimal, eco‑minded wrapping. The bar is designed to replace a bottled conditioner, offering concentrated conditioning in a compact form.

Key ingredients: Pro‑Vitamin B5 (panthenol) to help strengthen hair and support new growth, glycerin for moisture retention, coconut oil for emollient nourishment, and cocoa butter to add softness and sheen. The formulation is vegan and uses natural‑derived components where possible.

Free‑from list and approvals: The formula is free of sulfates, silicones, parabens, phthalates, soap, artificial fragrances and dyes. It is pH‑balanced and has been reviewed for use on sensitive scalps by dermatology professionals.

Who it’s for: Suitable for a wide range of hair types — fine, flat, curly, frizzy, color‑treated and gray hair — with a focus on adding volume and reducing breakage while improving manageability.

How to use: Wet hair thoroughly. Either glide the bar along the mid‑lengths and ends or rub it between palms to create a creamy spread, then work it through hair from ends toward the roots. Leave on for a minute or two to let actives penetrate, then rinse thoroughly. Can be paired with the brand’s shampoo bar for a zero‑waste routine.

Pros

Detangles and adds body without heavy residue
Contains Pro‑Vitamin B5, glycerin, coconut oil and cocoa butter
Vegan, pH‑balanced, and packaged for lower environmental impact

Cons

Some users report periodic buildup with repeated use
Contains a conditioning ingredient some shoppers question
Solid format requires different application and storage habits

VerdictThis solid volumizing conditioner bar offers noticeable detangling and shine with a lightweight finish rather than heavy residue. Key humectants and emollients — Pro‑Vitamin B5, glycerin, coconut oil and cocoa butter — aim to restore moisture and strengthen strands. It’s formulated for sensitive scalps and avoids common harsh additives, using a pH‑balanced base and eco‑friendly packaging. While ma

Customer reviews

Theresa's Peaces 5/5

My go‑to shampoo and conditioner set

I’ve used these bars for over two years. My fine, white hair needs a light touch and many products used to flatten it or irritate my scalp. These bars preserved volume, maintained color and didn’t cause itching. Each bar lasted many months for me, so they’re economical, and I now get compliments on my hair regularly.
Liz Eddy 5/5

My favorite hair care right now

Since switching to these bars my hair looks fuller, softer and shinier than with any other routine I tried. I saw a real difference in body and manageability and don’t plan to return to bottled conditioners.
KCH 5/5

Works well but I worry about an ingredient

This bar conditioned nicely, allowing for low‑product co‑washing while keeping curls defined and waves full of body. I stopped because of concerns I read about behentrimonium methosulfate — some sources link it to environmental issues and a possible contaminant. It seems plant‑derived, but I’m unsure, so I’m hesitant to continue despite liking the results.
Ashley Scarlet 5/5

Helped my scalp and soothed eczema flare‑ups

This bar did far more than tame dry, brittle strands — it reduced scalp itching and calmed eczema flares for me. Hair feels softer, shinier and less fragile. The scent is pleasant but not overpowering, the bar lasts a long time and it moisturizes without heavy buildup. I’m definitely buying another.
Baby mama list 😘 4/5

Curly hair friendly and reduced frizz

I have natural, moderately thick curls and noticed less frizz and more softness once I worked the bar into my hair. I usually finish with other leave‑ins and oils and the combo felt divine. I kept the bar dry between uses and it lasted just under a month for me. I’ve also seen good postpartum growth in the past month.
ACSW1101 5/5

Incredible results for the whole family

After months of waiting I finally tried these bars and they transformed our dry, frizzy hair. Both shampoo and conditioner left hair shiny with zero frizz and a silky feel. The conditioner provided a soothing scalp massage that helped my neuro‑immune reactions. The shampoo foams well; the conditioner gives a smooth, soft finish. I’ve already ordered extras for the kids.
Jennifer 3/5

Nice ingredients and travel‑friendly, but buildup occurred

I liked the clean ingredient list and the bars initially made my hair feel great. After about a week I noticed residue that I hadn’t seen with other products and had to clarify with apple cider vinegar. I tried again with extra rinsing but the buildup returned. They’re handy for travel or occasional use, but I won’t use them daily.
Judy L. 5/5

Leaves hair soft without feeling greasy

I’m 76 with long hair and most conditioners make my ends greasy unless I use a tiny amount. I applied this bar from ends to scalp, left it on briefly, then rinsed. After blow‑drying my hair looked shinier, softer and not frizzy. I’ve only tried it once with the matching shampoo so far and I’m impressed; I’ll keep using both and report back if anything changes.
Amel 5/5

Truly impressive conditioning

I’ve never experienced a conditioner that delivered results like this one — my hair felt noticeably improved after use. Very pleased with the outcome.