Muji Seaweed Shampoo & Conditioner Review

I have a very high tolerance of bad hair products. In my adult life, I can recall only one instance where I actually disliked a shampoo enough to throw it out (funny enough it’s one I reviewed) because I just don’t really think about my hair all that much. Early this week, however, I having a really good hair day which reminded me how much I absolutely love this hair cleansing/conditioning duo and felt the need to type up a brief review. Today, we are talking about Muji Seaweed Shampoo and Seaweed Conditioner!

Product Name
Muji Seaweed Shampoo / Muji Seaweed Conditioner 

Contains sea weed extract from Brittany as natural moisturizing components. Cares for damages from dryness or coloring, and makes your hair moist and easily manageable


Where does it fit in your routine?
Feel free to skip this part if you know how to wash your hair. To use the shampoo, wet hair with warm water, gently massage a small amount though the scalp creating lather, rinse thoroughly. To condition, apply to hair, focusing on ends,leave on for 1-3 mintes, rinse thoroughly.

Size and Price
The shampoo contains 400ML of product and costs $19. The conditioner contains 200g of product and costs $14. Both should be available at your local Muji. They’re not available on for whatever reason (the only store sucks in general) but they are on ebay (shampoo, conditioner, travel packets) for a pretty egregious markup.

The shampoo comes in a beige colored, rectangular bottle that I’m unreasonably fond of. I’m a slob at heart but buying minimalist things makes me feel like I’ll finally impose order on my life. The conditioner comes in a matching beige plastic tube. Both are super functional.

I think this is supposed to smell like lavender but it doesn’t (it smells better). It’s got an earthy, wet, acidic smell that I really like! It’s not super strong but I do occassionally catch whiffs of it throughout the day when the wind blows my hair a certain way.

Color and texture
The shampoo and conditioner are both golden-beigey in color. The shampoo looks pearly out of the bottle. The conditioner has a custardy type of texture that kind of reminds me of the History of Whoo Qin Honey Ginseng Sleeping Pack but thicker.

What’s in it? 

Muji does not have a good record of providing reliable stickered ingredient lists but unlike their oil cleanser, the ingredients for the shampoo on the bottles seems to match what I’ve found online.

Full Ingredients 
Shampoo: Aqua, Sodium Methyl Cocoyl Taurate, Sodium Lauroyl Methylaminoproprionate, Cocamidopropyl Betaine, Dipropylene Glycol, Glycol Distearate, Butylene Glycol, Citric Acid, Ceteareth-60 Myristyl Glycol, Cocamide MEA, Oleyl Alcohol, Lauramine Oxide, Polyquaternium-10, Perfume Lavender NAT KH-0453, Propylene Glycol, Sodium Salicylate, Methylparaben, Propylparaben, Caramel (E150(2)), Laminaria Digitata Extract, Chondrus Crispus (Carrageenan) Extract, Fucus Vesiculosus (Seaweed) Extract, Tanakura Clay, Polyquaternium-51, Chlorella Vulgaris Extract
Conditioner: Water, Cetyl Alcohol, Propylene Glycol, Stearamidopropyl Dimethylamine, Behentrimonium Chloride, Hydrogenated Jojoba Oil, Simmondsia Chinensis (Jojoba) Seed Oil, Squalane, Fragrance, Lactic Acid, Shea Butter, Isopropyl Alcohol, Methyl Paraben, Caramel Color, Propylparaben, Algae Extract, Citric Acid, Sodium Citrate, Carrageenan, Polyquaternium-51, Seaweed Extract, Algae Extract


I think of shampoo + conditioner as kind of like a double cleanser for your hair, and in the same way I consider cleansers I’m less interested in what is in the cleanser so much as what’s not in it. Here, I’m happy to see this duo does NOT include the following:

  • Sodium Lauryl Sulfate – I stopped using SLS shampoos about 10 years ago and since then, my issues with dandruff and hair breakage have all but disappeared and I’m not interested in getting them back. Not saying it’ll have the same effect on everyone, but if those are issues you suffer from it’s worth a try IMO
  • Licorice Extract/ Dipotassium Glycyrrhizate/ Glycyrrhizic Acid – While researching dipotassium glycyrrhizate for a blog post, I came across this study where scientists in Germany applied 15% glycyrrhizic acid to mice and watched their hair fall out. 15% is a lot and there’s no word yet on what licorice/glycyrrhizic acid does in lower concentrations, but I’m not exactly keen on using my hair to find out
  • Corn starch – Pretty sure this is the ingredient in the Jungle Botanics shampoo that made my hair feel nasty. Glad to see it’s not here

This shampoo is also sulfate and silicone free. I don’t really mind sulfates or silicones all that much (except SLS) but I know those are thing a lot of people look out for.

Acne Triggers & Irritants
Cosdna identifies butylene glycol (1), oleyl alcohol (4) as acne triggers and oleyl alcohol (2) as a potential irritant in the shampoo and cetyl alcohol (2), jojoba seed oil (2), squalane (1), and carrageenan (5) as acne triggers and cetyl alcohol (2), jojoba seed oil (0-2), isopropyl alcohol (4), and carrageenan (2) as potential irritants in the conditioner.


For reference, I have very thick, very straight, very normal and resilient hair. I need a shampoo with good cleansing power and a conditioner that won’t make my hair look coarse.

The shampoo dispenses through my hair easily, lathers up satisfactorily, and rinses out cleanly. The conditioner, likewise, is very easy to work through my hair. Used together, this duo leaves my hair feeling light, clean, ridiculously soft while looking silky and shiny. I like this shampoo a lot. All of my friends, male and female, who have stayed over or showered at my place for whatever reason really like this shampoo. The only shampoo that produces an effect close to this one is Shiseido’s Tsubaki Red Bottle shampoo/conditioner, but this one does it without silicones and has a more pleasant texture when applying, IMO, which makes it my new favorite shampoo/conditioner!

The Takeaway

Lovely to use shampoo and conditioner that gives me clean and shiny hair-commercial hair. Comes in stylish bottles too!

Overall Rating: 5/5

Disclaimer: This product was purchased by me. This post contains affiliate links. Purchasing an item through an affiliate link does not add any cost to the customer but does help support this site’s upkeep.

5 thoughts on “Muji Seaweed Shampoo & Conditioner Review

  1. Marjo1672 says:

    This sounds very interesting. Years ago, I realized shampoos dried out my hair too much, so I started “shampooing” my hair with just conditioner. Then the next step was finding a conditioner that was going to leave my hair feel clean and silky smooth. I’ve tried a lot and so far my hair loves only Dove anti-frizz oil therapy conditioner. I’m always on the lookout for a non drying shampoo only because I do miss the process of lathering my hair. I might give this one a try. Thanks for the review.

    Liked by 1 person

    • V. Rex says:

      Have you tried the orange tube shampoo/conditioner from Acure? It’s super gentle (on my hair) but also cleans decently. I’ve also read their shampoos are low pH although I’ve never personally pH tested any.


  2. Jape says:

    Muji Damage Care shampoo and conditioner look kinda similar to the Seaweed line… Do you see any problematic ingredients in those products? Did you get to try them? I uploaded the ingredient lists to cosdna.

    Liked by 1 person

    • V. Rex says:

      I haven’t tried them but they do indeed look very similar! None of the ingredients stand out as being concerning, and I am very curious about the scent considering all the fruity ingredients. If you end up trying it let me know how you like it!


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