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Cobalt Shampoo Bar- Love the Scent, Decent Shampoo
The ZWS ships items without the use of plastic packaging, opting instead for a simple cardboard box and paper-based packaging tape which is a relief and true to the spirit of the "zero waste" mission. I ordered the Cobalt Shampoo bar because I enjoy the stereotypical "man scent" of hygiene products (think Oldspice) and thought this sounded the closest. It met my expectations and I'm delighted! It is normally a pretty artificial-seeming scent, so I was surprised they achieved it with essential oils. The only other shampoo bar I've used is the Sun Basin Shampoo Bars from the Good Store. The ZWS shampoo bar definiterly "softens"/melts more easily than the Sun Basin bars. I would not store the ZWS shampoo bar in the shower as the humidity causes it to melt into goop over time. If you take it out of the shower, don't run it under water, and store it on a tray that allows it to air-dry between uses, I think you can get a good 4-6 months out of it (I have a "men's" short haircut). As far as shampoo goes, it works well! A little goes a LONG way, truly only 1 to 2 swipes and a lather will work up quick. It can feel a little stripping, almost that "squeaky-clean" feeling so be careful from overusing it and you'll want a moisturizing conditioner to go with it. I'm pretty happy with the product. While I had some issues, the main reason I get this is to avoid plastic waste, and it is good enough for me to continue purchasing. I'm interested to try other scents with future orders!
Rhiannon · 10 days ago
Love this shampoo!
The scent is great. I obviously love that this is zero plastic, but also I feel like it works better than the bottled shampoo I've used (even the expensive stuff). For the first time in my life, I can go more than a day without washing my hair!
Autumn · 15 days ago
Squeaky clean
I have thick hair, and was a little nervous about using the shampoo bar because I didn't know if it was going to leave a build up in my hair. I have currently only used it once, but after one use, my hair was literally squeaky clean. I ran my hair along my wet roots and scalp and it made a squeaky clean sound. Surprised to say, that I haven't washed my hair in the last few days (Mom life) and my scalp isn't as oily as usual either. With tick hair, I have battled oily build up in the past. So far I'm doing pretty well after one use.
Ardath · June 25, 2026





